The effects of surface treatments on properties and corrosion protection of AZ91D magnesium alloy

Magnesium alloy, especially AZ91D is extensively applied in the electronic industries due to its low densities, excellent strength to the weight ratio, and good electromagnetic shielding. However, its poor performance in a corrosive environment has restricted its applications. In this work, the corr...

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Main Author:	Wan Zulkifli, Wan Amirul Shafiz
Format:	Thesis
Language:	English English
Published:	2018
Subjects:	T Technology (General)
Online Access:	http://eprints.utem.edu.my/id/eprint/23453/1/The%20Effects%20Of%20Surface%20Treatments%20On%20Properties%20And%20Corrosion%20Protection%20Of%20AZ91D%20Magnesium%20Alloy%20-%20Wan%20Amirul%20Shafiz%20Wan%20Zulkifli%20-%2024%20Pages.pdf http://eprints.utem.edu.my/id/eprint/23453/2/The%20effects%20of%20surface%20treatments%20on%20properties%20and%20corrosion%20protection%20of%20AZ91D%20magnesium%20alloy.pdf
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institution	Universiti Teknikal Malaysia Melaka
collection	UTeM Repository
language	English English
advisor	Mohd Rosli, Zulkifli
topic	T Technology (General) T Technology (General)
spellingShingle	T Technology (General) T Technology (General) Wan Zulkifli, Wan Amirul Shafiz The effects of surface treatments on properties and corrosion protection of AZ91D magnesium alloy
description	Magnesium alloy, especially AZ91D is extensively applied in the electronic industries due to its low densities, excellent strength to the weight ratio, and good electromagnetic shielding. However, its poor performance in a corrosive environment has restricted its applications. In this work, the corrosion resistance of the AZ91D surface was investigated by comparing three surface treatment techniques known as the oxidation, PA-PVD, and the duplex treatment. The treated AZ91D were analysed using varied methods, encompassing, microstructure analysis via SEM and optical microscope, phases analysis using XRD characterization, and surface roughness analysis using surface profilometer, to name a few. The results captured the occurrence of grain recrystallization, the elimination of twin boundaries on the grain structure of untreated AZ91D and the elimination Mg17Al12 phase precipitation after the oxidation process in which the Mg17Al12 precipitate is believed to accelerate the corrosion rate by acting as cathode near the Mg matrix. The presence of MgO phase after oxidation process and duplex treatment also has increased the corrosion resistance of AZ91D by the development of oxide passive film on the AZ91D surface. Cross-sectional SEM images show that the Cr2O3 coating has successfully been deposited on the AZ91D surface with 2μm thickness. Throughout the thorough analysis, the study has concluded that, the oxidized AZ91D has the best corrosion resistance, followed by the duplex treatment and PA-PVD process. Further recommendations are also proposed in this thesis.
format	Thesis
qualification_name	Master of Philosophy (M.Phil.)
qualification_level	Master's degree
author	Wan Zulkifli, Wan Amirul Shafiz
author_facet	Wan Zulkifli, Wan Amirul Shafiz
author_sort	Wan Zulkifli, Wan Amirul Shafiz
title	The effects of surface treatments on properties and corrosion protection of AZ91D magnesium alloy
title_short	The effects of surface treatments on properties and corrosion protection of AZ91D magnesium alloy
title_full	The effects of surface treatments on properties and corrosion protection of AZ91D magnesium alloy
title_fullStr	The effects of surface treatments on properties and corrosion protection of AZ91D magnesium alloy
title_full_unstemmed	The effects of surface treatments on properties and corrosion protection of AZ91D magnesium alloy
title_sort	effects of surface treatments on properties and corrosion protection of az91d magnesium alloy
granting_institution	Universiti Teknikal Malaysia Melaka
granting_department	Faculty of Manufacturing Engineering
publishDate	2018
url	http://eprints.utem.edu.my/id/eprint/23453/1/The%20Effects%20Of%20Surface%20Treatments%20On%20Properties%20And%20Corrosion%20Protection%20Of%20AZ91D%20Magnesium%20Alloy%20-%20Wan%20Amirul%20Shafiz%20Wan%20Zulkifli%20-%2024%20Pages.pdf http://eprints.utem.edu.my/id/eprint/23453/2/The%20effects%20of%20surface%20treatments%20on%20properties%20and%20corrosion%20protection%20of%20AZ91D%20magnesium%20alloy.pdf
_version_	1747834048932216832
spelling	my-utem-ep.234532022-06-13T12:53:04Z The effects of surface treatments on properties and corrosion protection of AZ91D magnesium alloy 2018 Wan Zulkifli, Wan Amirul Shafiz T Technology (General) TA Engineering (General). Civil engineering (General) Magnesium alloy, especially AZ91D is extensively applied in the electronic industries due to its low densities, excellent strength to the weight ratio, and good electromagnetic shielding. However, its poor performance in a corrosive environment has restricted its applications. In this work, the corrosion resistance of the AZ91D surface was investigated by comparing three surface treatment techniques known as the oxidation, PA-PVD, and the duplex treatment. The treated AZ91D were analysed using varied methods, encompassing, microstructure analysis via SEM and optical microscope, phases analysis using XRD characterization, and surface roughness analysis using surface profilometer, to name a few. The results captured the occurrence of grain recrystallization, the elimination of twin boundaries on the grain structure of untreated AZ91D and the elimination Mg17Al12 phase precipitation after the oxidation process in which the Mg17Al12 precipitate is believed to accelerate the corrosion rate by acting as cathode near the Mg matrix. The presence of MgO phase after oxidation process and duplex treatment also has increased the corrosion resistance of AZ91D by the development of oxide passive film on the AZ91D surface. Cross-sectional SEM images show that the Cr2O3 coating has successfully been deposited on the AZ91D surface with 2μm thickness. Throughout the thorough analysis, the study has concluded that, the oxidized AZ91D has the best corrosion resistance, followed by the duplex treatment and PA-PVD process. Further recommendations are also proposed in this thesis. UTeM 2018 Thesis http://eprints.utem.edu.my/id/eprint/23453/ http://eprints.utem.edu.my/id/eprint/23453/1/The%20Effects%20Of%20Surface%20Treatments%20On%20Properties%20And%20Corrosion%20Protection%20Of%20AZ91D%20Magnesium%20Alloy%20-%20Wan%20Amirul%20Shafiz%20Wan%20Zulkifli%20-%2024%20Pages.pdf text en public http://eprints.utem.edu.my/id/eprint/23453/2/The%20effects%20of%20surface%20treatments%20on%20properties%20and%20corrosion%20protection%20of%20AZ91D%20magnesium%20alloy.pdf text en validuser https://plh.utem.edu.my/cgi-bin/koha/opac-detail.pl?biblionumber=112839&query_desc=kw%2Cwrdl%3A%20The%20effects%20of%20surface%20treatments%20on%20properties%20and%20corrosion%20protection%20of%20AZ91D%20magnesium%20alloy mphil masters Universiti Teknikal Malaysia Melaka Faculty of Manufacturing Engineering Mohd Rosli, Zulkifli 1. Ali, Y., Qiu, D., Jiang, B., Pan, F. and Zhang, M.X., 2015. Current research progress in grain refinement of cast magnesium alloys: a review article. Journal of Alloys and Compounds, 619, pp.639-651. 2. Aljarrah, M., Medraj, M., Wang, X., Essadiqi, E., Muntasar, A. and Denes, G., 2007. Experimental investigation of the Mg Al Ca system. Journal of alloys and compounds, 436(1), pp.131-141. 3. Altun, H. and Sen, S., 2005. The effect of DC magnetron sputtering AlN coatings on the corrosion behaviour of magnesium alloys. Surface and Coatings Technology, 197(2), pp.193-200. 4. Altun, H. and Sen, S., 2006. The effect of PVD coatings on the corrosion behaviour of AZ91 magnesium alloy. Materials & design, 27(10), pp.1174-1179. 5. Altun, H. and Sinici, H., 2008. Corrosion behaviour of magnesium alloys coated with TiN by cathodic arc deposition in NaCl and Na2SO4 solutions. Materials Characterization, 59(3), pp.266-270. 6. Ambat, R., Aung, N.N. and Zhou, W., 2000. Studies on the influence of chloride ion and pH on the corrosion and electrochemical behaviour of AZ91D magnesium alloy. Journal of Applied Electrochemistry, 30(7), pp.865-874. 7. Aung, N.N. and Zhou, W., 2010. Effect of grain size and twins on corrosion behaviour of AZ31B magnesium alloy. Corrosion Science, 52(2), pp.589-594. 8. Aung, N.N., Zhou, W. and Lim, L.E., 2008. Wear behaviour of AZ91D alloy at low sliding speeds. Wear, 265(5), pp.780-786. 9. Avedesian, M.M. and Baker, H. eds., 1999. ASM specialty handbook: magnesium and magnesium alloys. ASM international. 10. Avedesian, M.M. and Baker, H., 1999. ASM speciality handbook: magnesium and magnesium alloys. ASM international, 59, p.60. 11. Buha, J., 2008. Mechanical properties of naturally aged Mg–Zn–Cu–Mn alloy. Materials Science and Engineering: A, 489(1), pp.127-137. 12. Callister, W. (2007). Materials science and engineering: An introduction (7th ed., p. 410). 13. Callister, W. (2007). Materials science and engineering: An introduction (7th ed., p. 411). 14. Cao, F., Song, G.L. and Atrens, A., 2016. Corrosion and passivation of magnesium alloys. Corrosion Science, 111, pp.835-845. 15. Chang, Z.R., Zhang Jin, Jun, H.W., 2006. Review of studies on corrosion of magnesium alloys. 'kansactions of Nonferrous Metals Society of China 16, 763–771. 16. Composite, O. M., & Alloy, C. A. (1993). Oxide Matrix Composite, (196053), 1296–1300. 17. Czerwinski, F., 2015. The reactive element effect on high-temperature oxidation of magnesium. International Materials Reviews, 60(5), pp.264-296. 18. Czerwinski, F., 2004. Factors affecting the oxidation nature of magnesium alloys. JOM 56, 29–31. 19. Sahoo, P., Debroy, T., Mcnallan, M.J., 1988. Surface tension of binary metal—surface active solute systems under conditions relevant to welding metallurgy. Metallurgical Transactions B 19, 483–491. 20. Dong, H., 2000. Current status and trends in duplex surface engineering of titanium alloys. In 20 th ASM Heat Treating Society Conference (pp. 170-176). 21. Durst, O., Ellermeier, J. and Berger, C., 2008. Influence of plasma-nitriding and surface roughness on the wear and corrosion resistance of thin films (PVD/PECVD). Surface and Coatings Technology, 203(5), pp.848-854. 22. Friedrich, H. and Schumann, S., 2001. Research for a “new age of magnesium” in the automotive industry. Journal of Materials Processing Technology, 117(3), pp.276-281. 23. Fu, Y., Wei, J., Yan, B. and Loh, N.L., 2000. Characterization and tribological evaluation of duplex treatment by depositing carbon nitride films on plasma nitrided Ti-6Al-4V. Journal of materials science, 35(9), pp.2215-2227. 24. Fujisawa, S., Yonezu, A., Okamura, T. and Yoneda, K., 2014. Estimation of microstructural plastic property of die-cast Mg alloy (AZ91D) with an elevated temperature indentation. Materials Science and Engineering: A, 616, pp.63-70. 25. G R WALLWORK. 1975. School of Metallurgy, University of New South Wales, PO Box 1, Kensington, New South Wales 2033, Australia. 26. Gao, L., Zhang, C., Zhang, M., Huang, X. and Sheng, N., 2009. The corrosion of a novel Mg–11Li–3Al–0.5 RE alloy in alkaline NaCl solution. Journal of Alloys and Compounds, 468(1), pp.285-289. 27. Getting Started with Electrochemical Corrosion Measurement [WWW Document], n.d. [WWW Document]. Electrochemical Corrosion Measurements-Galvanic Corrosion. URL https://www.gamry.com/application-notes/corrosion-coatings/basics-of-electrochemical-corrosion-measurements/ (accessed 2.22.17). 28. Ghali, E., Dietzel, W., Kainer, K.-U., 2004. Testing of General and Localized Corrosion of Magnesium Alloys: A Critical Review. Journal of Materials Engineering and Performance 13, 517–529. 29. Gray, J. and Luan, B., 2002. Protective coatings on magnesium and its alloys—a critical review. Journal of alloys and compounds, 336(1-2), pp.88-113. 30. Guo, H.X., Ying, M.A., Wang, J.S., Wang, Y.S., Dong, H.R. and Yuan, H.A.O., 2012. Corrosion behavior of micro-arc oxidation coating on AZ91D magnesium alloy in NaCl solutions with different concentrations. Transactions of Nonferrous Metals Society of China, 22(7), pp.1786-1793. 31. Höche, D., Blawert, C., Cavellier, M., Busardo, D. and Gloriant, T., 2011. Magnesium nitride phase formation by means of ion beam implantation technique. Applied Surface Science, 257(13), pp.5626-5633. 32. Hoche, H., Blawert, C., Broszeit, E. and Berger, C., 2005. Galvanic corrosion properties of differently PVD-treated magnesium die cast alloy AZ91. Surface and Coatings Technology, 193(1), pp.223-229. 33. Hoche, H., 2003. Plasma anodisation as an environmental harmless method for the corrosion protection of magnesium alloys. Surface and Coatings Technology 174-175, 1002–1007. 34. Hollstein, F., Wiedemann, R. and Scholz, J., 2003. Characteristics of PVD-coatings on AZ31hp magnesium alloys. Surface and Coatings Technology, 162(2), pp.261-268. 35. Holmberg, K. and Matthews, A., 2009. Coatings tribology: Contact mechanisms, deposition techniques and application. Elsevier, Oxford, p.243. 36. Hongxi, L., Qian, X., Damin, X., Bo, L. and Chunlei, M., 2013. Microstructure and corrosion resistance of AZ91D magnesium alloy treated by hybrid ion implantation and heat treatment. Vacuum, 89, pp.233-237. 37. Housecroft, C. and Sharpe, A. (2008). Inorganic chemistry. Harlow: Prentice Hall. 38. Hu, L., Chen, S., Miao, Y. and Meng, Q., 2012. Die-casting effect on surface characteristics of thin-walled AZ91D magnesium components. Applied Surface Science, 261, pp.851-856. 39. Huang, Y.C., Chang, S.Y. and Chang, C.H., 2009. Effect of residual stresses on mechanical properties and interface adhesion strength of SiN thin films. Thin Solid Films, 517(17), pp.4857-4861. 40. Ignatenko, Klyakhina, Yu Badekin, 2005. Structure and Properties of Films Grown on Si, Ta, Ti, Mo, W, and Ni Substrates by Reactive Ion-Beam Sputtering. Inorganic Materials 41, 193–196. 41. Kotoka, R., Worthy, A., Clinard, E., Pai, D., Sankar, J., Yarmolenko, S., 2012. Application of Magnesium Oxide Functional Coating for Controlling the Corrosion of Magnesium for Implant Applications. Volume 3: Design, Materials and Manufacturing, Parts A, B, and C. 42. Kramer, P. A., Banker, G. S., Nadkarni, P. D., & Kildsig, D. O., 1975. Effect of Surface Roughness and Coating Solvent on Film Adhesion to Tablets. Journal of Pharmaceutical Sciences, 64(9), 1554–1557. 43. Kurth, M., Graat, P.C.J., Carstanjen, H.D., Mittemeijer, E.J., 2006. The initial oxidation of magnesium: anin situ study with XPS, HERDA and ellipsometry. Surface and Interface Analysis 38, 931–940. 44. Kurze, P., 2003. Corrosion and Corrosion Protection of Magnesium. Magnesium– Alloys and Technology 218–225. 45. Lea, C., Molinari, C., 1984. Magnesium diffusion, surface segregation and oxidation in Al-Mg alloys. Journal of Materials Science 19, 2336–2352. 46. Li, C. and Yu, Y.D., 2013. The effect of solution heat treatments on the microstructure and hardness of ZK60 magnesium alloys prepared under low-frequency alternating magnetic fields. Materials Science and Engineering: A, 559, pp.22-28. 47. Li, Z., Qian, S. and Wang, W., 2011. Influence of superalloy substrate roughness on adhesion and oxidation behavior of magnetron-sputtered NiCoCrAlY coatings. Applied Surface Science, 257(24), pp.10414-10420. 48. Liu, K., Ma, H. and Chen, X.G., 2017. Enhanced elevated-temperature properties via Mo addition in Al-Mn-Mg 3004 alloy. Journal of Alloys and Compounds, 694, pp.354-365. 49. Liu, M., Zanna, S., Ardelean, H., Frateur, I., Schmutz, P., Song, G., Atrens, A. and Marcus, P., 2009. A first quantitative XPS study of the surface films formed, by exposure to water, on Mg and on the Mg–Al intermetallics: Al 3 Mg 2 and Mg 17 Al 12. Corrosion Science, 51(5), pp.1115-1127. 50. Liu, L., Xu, J., 2011. A study of the erosion–corrosion behavior of nano-Cr2O3 particles reinforced Ni-based composite alloying layer in aqueous slurry environment. Vacuum 85, 687–700. 51. Liu, F., 2016. Effect of Pretreatment and Annealing on Aluminum Coating Prepared by Physical Vapor Deposition on AZ91D Magnesium Alloys. International Journal of Electrochemical Science 5655–5668. 52. Lugscheider, E., Parco, M., Kainer, K.U. and Hort, N., 2005. Thermal spraying of magnesium alloys for corrosion and wear protection. Magnesium, pp. 860-868. 53. Medved, J.C.B.E., Mrvar, P., 2006. Thermal Analysis of the Mg-Al Alloys. Materials Science Forum Solidification and Gravity IV 603–608. 54. Medved, Vonina, M., J., Mrvar, P., 2011. Oxidation Resistance of AM60, AM50, AE42 and AZ91 Magnesium Alloys. Magnesium Alloys - Corrosion and Surface Treatments. 55. Miura, H., Yu, G. and Yang, X., 2011. Multi-directional forging of AZ61Mg alloy under decreasing temperature conditions and improvement of its mechanical properties. Materials Science and Engineering: A, 528(22), pp.6981-6992. 56. Mordike, B.L. and Ebert, T., 2001. Magnesium: properties—applications—potential. Materials Science and Engineering: A, 302(1), pp.37-45. 57. Müller, K.E.H., 1987. Stress and microstructure of sputter‐deposited thin films: Molecular dynamics investigations. Journal of Applied Physics 62, 1796–1799. 58. Niu, L., Chang, S.H., Tong, X., Li, G. and Shi, Z., 2014. Analysis of characteristics of vanadate conversion coating on the surface of magnesium alloy. Journal of Alloys and Compounds, 617, pp.214-218. 59. Park, I.S., Jang, Y.S., Kim, Y.K., Lee, M.H., Yoon, J.M. and Bae, T.S., 2008. Surface characteristics of AZ91D alloy anodized with various conditions. Surface and interface analysis, 40(9), pp.1270-1277. 60. Pekguleryuz, M.O., Kainer, K. and Kaya, A.A. eds., 2013. Fundamentals of magnesium alloy metallurgy. Elsevier. 61. Pertrov, B Barna, L Hultman, Greene, J.E., 2003. Microstructural evolution during film growth. Journal of Vacuum Science Technology 21, 117–128. 62. Rolinski, E. and Sharp, G., 2005. When and Why Ion Nitriding/Nitrocarburizing Makes Good Sense-Ion nitriding can be used in many applications, but some are so unique that they can be called" the best" applications, where the unique. Industrial Heating, 72(8), pp.67-74. 63. Romero, J., Esteve, J. and Lousa, A., 2004. Period dependence of hardness and microstructure on nanometric Cr/CrN multilayers. Surface and Coatings technology, 188, pp.338-343. 64. Samaniego, A., Gusieva, K., Llorente, I., Feliu, S. and Birbilis, N., 2014. Exploring the possibility of protective surface oxides upon Mg alloy AZ31 via lutetium additions. Corrosion Science, 89, pp.101-110. 65. Shanmugam, Thirumalaikumarasamy, K. and Balasubramanian, V., 2014. Comparison of the corrosion behaviour of AZ31B magnesium alloy under immersion test and potentiodynamic polarization test in NaCl solution. Journal of Magnesium and Alloys, 2(1), pp.36-49. 66. Slima, S.B., 2012. Ion and gas nitriding applied to steel tool for hot work X38CrMoV5 nitriding type: impact on the wear resistance. Materials Sciences and Applications, 3(09), pp.640-644. 67. Song, G.L., Andrej Atrens, 1999. Corrosion Mechanisms of Magnesium Alloys. Advanced Engineering Materials 1, 11–33. 68. Stephens, R.I., Schrader, C.D., Lease, K.B., 1995. Corrosion Fatigue of AZ91E-T6 Cast Magnesium Alloy in a 3.5 Percent NaCl Aqueous Environment. Journal of Engineering Materials and Technology 117, 293. 69. Stippich, F., Vera, E., Wolf, G., Berg, G., Friedrich, C., 1998. Enhanced corrosion protection of magnesium oxide coatings on magnesium deposited by ion beam-assisted evaporation. Surface and Coatings Technology 103-104, 29–35. 70. Tacikowski, M., Morgiel, J., Banaszek, M., Cymerman, K. and Wierzchon, T., 2014. Structure and properties of diffusive titanium nitride layers produced by hybrid method on AZ91D magnesium alloy. Transactions of Nonferrous Metals Society of China, 24(9), pp.2767-2775. 71. Tacikowski, M., Kamiński, J., Rudnicki, J., Borowski, T., Trzaska, M., Wierzchoń, T., 2011. The effect of the diffusive, composite chromium nitride layers produced by a hybrid surface treatment on the corrosion behavior of AZ91D magnesium alloy. Vacuum 85, 938–942. 72. Taheri, M., Phillips, R.C., Kish, J.R. and Botton, G.A., 2012. Analysis of the surface film formed on Mg by exposure to water using a FIB cross-section and STEM–EDS. Corrosion Science, 59, pp.222-228. 73. Tan, Q., Atrens, A., Mo, N. and Zhang, M.X., 2016. Oxidation of magnesium alloys at elevated temperatures in air: A review. Corrosion Science, 112, pp.734-759. 74. Tian, X.B., Wei, C.B., Yang, S.Q., Fu, R.K. and Chu, P.K., 2005. Corrosion resistance improvement of magnesium alloy using nitrogen plasma ion implantation. Surface and Coatings Technology, 198(1), pp.454-458. 75. Tian, X.B., Wei, C.B., Yang, S.Q., Rcky Fu, K.Y., Paul Chu, k., 2005. Corrosion Resistance Technology 303, 61–67. 76. Tian, Y., Yang, L., Li, Y., Wei, Y., Hou, L., Li, Y. and Murakami, R. (2011). Corrosion behaviour of die-cast AZ91D magnesium alloys in sodium sulphate solutions with different pH values. Transactions of Nonferrous Metals Society of China, 21(4), pp.912-920. 77. Tran, Q.P., Kuo, Y.C., Sun, J.K., He, J.L. and Chin, T.S., 2016. High quality oxide-layers on Al-alloy by micro-arc oxidation using hybrid voltages. Surface and Coatings Technology, 303, pp.61-67. 78. T Valente, 2001. Grain boundary effects on the behavior of WE43 magnesium castings in simulated marine environment. Journals of Materials Science Letter 20, 67–69. 79. Uan, J.-Y., Lin, J.-K., Sun, Y.-S., Yang, W.-E., Chen, L.-K., Huang, H.-H., 2010. Surface coatings for improving the corrosion resistance and cell adhesion of AZ91D magnesium alloy through environmentally clean methods. Thin Solid Films 518, 7563–7567. 80. Uslu, M.E., Onel, A.C., Ekinci, G., Toydemir, B., Durdu, S., Usta, M. and Arslan, L.C., 2015. Investigation of (Ti, V) N and TiN/VN coatings on AZ91D Mg alloys. Surface and Coatings Technology, 284, pp.252-257. 81. Wang, B., Sun, S., Guo, M., Jin, G., Zhou, Z. and Fu, W., 2015. Study on pressurized gas nitriding characteristics for steel 38CrMoAlA. Surface and Coatings Technology, 279, pp.60-64. 82. Wang, H.W., Stack, M.M., Lyon, S.B., Hovsepian, P. and Münz, W.D., 2000. The corrosion behaviour of macroparticle defects in arc bond-sputtered CrN/NbN superlattice coatings. Surface and coatings technology, 126(2), pp.279-287. 83. Wang, M.J., Li, C.F. and Yen, S.K., 2013. Electrolytic MgO/ZrO 2 duplex-layer coating on AZ91D magnesium alloy for corrosion resistance. Corrosion Science, 76, pp.142-153. 84. Wang, Y., Wang, X., Zhang, T., Wu, K. and Wang, F., 2013. Role of β Phase during microarc oxidation of Mg Alloy AZ91D and corrosion resistance of the oxidation coating. Journal of Materials Science & Technology, 29(12), pp.1129-1133. 85. Wang, Y., Zhou, L., Jia, B., Bai, D., Yang, X., Gao, X. and Bo, B., 2012, August. The effect of argon plasma cleaning on the surface characteristics of GaAs substrate. In Optoelectronics and Microelectronics (ICOM), 2012 International Conference on (pp. 16-20). IEEE. 86. Wang, Q., Zhou, F., Yan, J., 2016. Evaluating mechanical properties and crack resistance of CrN, CrTiN, CrAlN and CrTiAlN coatings by nanoindentation and scratch tests. Surface and Coatings Technology 285, 203–213. 87. Wu, S.K., Yen, S.C. and Chou, T.S., 2006. A study of rf-sputtered Al and Ni thin films on AZ91D magnesium alloy. Surface and Coatings Technology, 200(8), pp.2769-2774. 88. Xie, Z., Chen, Q., Chen, T., Gao, X., Yu, X., Song, H. and Feng, Y., 2015. Microstructure and properties of nitrogen ion implantation/AlN/CrAlN/MoS 2-phenolic resin duplex coatings on magnesium alloys. Materials Chemistry and Physics, 160, pp.212-220. 89. Xin, Y., Liu, C., Huo, K., Tang, G., Tian, X. and Chu, P.K., 2009. Corrosion behavior of ZrN/Zr coated biomedical AZ91 magnesium alloy. Surface and Coatings technology, 203(17), pp.2554-2557. 90. Xu, H.-Y., Ji, Z.-S., Hu, M.-L., Wang, Z.-Y., 2012. Microstructure evolution of hot pressed AZ91D alloy chips reheated to semi-solid state. Transactions of Nonferrous Metals Society of China 22, 2906–2912. 91. Yamamoto, A., Watanabe, A., Sugahara, K., Tsubakino, H. and Fukumoto, S., 2001. Improvement of corrosion resistance of magnesium alloys by vapor deposition. Scripta materialia, 44(7), pp.1039-1042. 92. Yang, Y., Yang, X., Xiao, Z., Zhang, D., Wang, J. and Sakai, T., 2017. Annealing behavior of a cast Mg-Gd-Y-Zr alloy with necklace fine grains developed under hot deformation. Materials Science and Engineering: A, 688, pp.280-288. 93. Yu, X., Jiang, B., Yang, H., Yang, Q., Xia, X. and Pan, F., 2015. High temperature oxidation behavior of Mg-Y-Sn, Mg-Y, Mg-Sn alloys and its effect on corrosion property. Applied Surface Science, 353, pp.1013-1022. 94. Yue, T.M., Ha, H.U., Musson, N.J., 1995. Grain size effects on the mechanical properties of some squeeze cast light alloys. Journal of Materials Science 30, 2277–2283. 95. Yusliza Yusuf, Rosli, Z.M., Juoi, J.M., Noririnah Omar, Rohana Abdullah, Nuzaimah Mustafa, 2016. Wear And Corrosion Behavior Of Various Surafce Treatments Mgaz91d Alloy- A Review. ARPN Journal of Engineering and Applied Sciences 11, 11013–11015. 96. Zheng, X., Wu, G. and Yao, S., 2006. Formation by reactive magnetron sputtering of TiN coating on Ti-implanted magnesium alloy. Materials Letters, 60(17), pp.2252-2255. 97. Zhang, F. and Yan, M., 2014. Microstructure and wear resistance of in situ formed duplex coating fabricated by plasma nitriding Ti coated 2024 Al alloy. Journal of Materials Science & Technology, 30(12), pp.1278-1283. 98. Zhang, L., Ye, B., Liao, W., Zhou, H., Guo, W., Wang, Q., Jiang, H. and Ding, W., 2015. Microstructure evolution and mechanical properties of AZ91D magnesium alloy processed by repetitive upsetting. Materials Science and Engineering: A, 641, pp.62-70. 99. Zulkifli, M.R., Zaimi, M., Juoi, J.M. and Mahamud, Z., 2015, June. Corrosion Performance of Nitrided Based Coating on AZ9I Mg Alloy in Hank's Solution. In Materials Science Forum (Vol. 819, p. 303). Trans Tech Publications Ltd.. 100. Zulkifli, M.R., Mahamud, Z.B., Juoi, J.M., Nayan, N., Loon, K.W., Yusuf, Y., Maulod, H.E.A., 2013. Corrosion Behavior of AZ91 Mg-Alloy Coated with AlN and TiN in NaCl and Hanks Solution. Advanced Materials Research 626, 275–279. 101. Zulkifli M. R., Kwan, W.L., Juoi, J.M., Nayan, N., Mahamud, Z. and Yusuf, Y., 2012. Effect of grain size on the corrosion behavior of TiALBN nanocomposite coating. Solids and Structures, 1(1), pp.10-15. 102. Zulkifli M. R., Loon, K.W., Juoi, J.M., Nafarizal, N., Mahamud, Z.B. and Yusuf, Y., 2013. Characterization of TiAlBN nanocomposite coating deposited via radio frequency magnetron sputtering using single hot-pressed target. In Advanced Materials Research (Vol. 626, pp. 298-301). Trans Tech Publications. 103. Zulkifli M. R., Mahamud, Z.B., Juoi, J.M., Nafarizal, N., Loon, K.W., Yusuf, Y. and Maulod, H.E.A., 2015. Corrosion behavior of AZ91 Mg-Alloy coated with AlN and TiN in NaCl and Hank's solution. Advanced Materials Research, 626, pp. 275-279.

The effects of surface treatments on properties and corrosion protection of AZ91D magnesium alloy

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