The effect of aging treatment on the microstructure and thermodynamic parameters of CuA1Ni-Mn shape memory alloys (SMAs)

This thesis presents the effect of heat treatment on the microstructure and thermodynamic parameters of CuAlNi -Mn SMA. The effects of different aging temperatures of 300oC, 400oC and 500oC at various aging times were evaluated using the optical microscopy, FESEM and the XRD, to investigate their mi...

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Main Author:	Abed Shakir, Ali
Format:	Thesis
Language:	English
Published:	2014
Subjects:	TA Engineering (General) Civil engineering (General)
Online Access:	http://eprints.utm.my/id/eprint/48641/1/AliAbedShakirMFKM2014.pdf
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spelling	my-utm-ep.486412020-03-05T06:58:51Z The effect of aging treatment on the microstructure and thermodynamic parameters of CuA1Ni-Mn shape memory alloys (SMAs) 2014 Abed Shakir, Ali TA Engineering (General). Civil engineering (General) This thesis presents the effect of heat treatment on the microstructure and thermodynamic parameters of CuAlNi -Mn SMA. The effects of different aging temperatures of 300oC, 400oC and 500oC at various aging times were evaluated using the optical microscopy, FESEM and the XRD, to investigate their microstructure and phase transformation. The martensite and austenite transformation temperatures of CuAlNi -Mn SMA have been determined by the differential scanning calorimetry (DSC), while the hardness property using Vickers hardness. The variation of the structure and properties of alloy were influenced by the morphology and the type of the phases obtained. The observation revealed that the grain size and the grain boundary of CuAlNi -Mn SMA increase with increasing the aging temperatures and aging times. Due to this, the values of Vickers hardness were observed to decrease at elevated temperatures and prolonged aging times. On the other hand, the changes of thermodynamic parameters were observed with regard to the variation of aging temperatures and aging time. The enthalpy and entropy were observed increase with increasing the aging temperatures and aging times. 2014 Thesis http://eprints.utm.my/id/eprint/48641/ http://eprints.utm.my/id/eprint/48641/1/AliAbedShakirMFKM2014.pdf application/pdf en public http://dms.library.utm.my:8080/vital/access/manager/Repository/vital:77384?queryType=vitalDismax&query=The+effect+of+aging+treatment+on+the+microstructure+and+thermodynamic+parameters+of+CuA1Ni-Mn+shape+memory+alloys+%28SMAs%29&public=true masters Universiti Teknologi Malaysia, Faculty of Mechanical Engineering Faculty of Mechanical Engineering
institution	Universiti Teknologi Malaysia
collection	UTM Institutional Repository
language	English
topic	TA Engineering (General) Civil engineering (General)
spellingShingle	TA Engineering (General) Civil engineering (General) Abed Shakir, Ali The effect of aging treatment on the microstructure and thermodynamic parameters of CuA1Ni-Mn shape memory alloys (SMAs)
description	This thesis presents the effect of heat treatment on the microstructure and thermodynamic parameters of CuAlNi -Mn SMA. The effects of different aging temperatures of 300oC, 400oC and 500oC at various aging times were evaluated using the optical microscopy, FESEM and the XRD, to investigate their microstructure and phase transformation. The martensite and austenite transformation temperatures of CuAlNi -Mn SMA have been determined by the differential scanning calorimetry (DSC), while the hardness property using Vickers hardness. The variation of the structure and properties of alloy were influenced by the morphology and the type of the phases obtained. The observation revealed that the grain size and the grain boundary of CuAlNi -Mn SMA increase with increasing the aging temperatures and aging times. Due to this, the values of Vickers hardness were observed to decrease at elevated temperatures and prolonged aging times. On the other hand, the changes of thermodynamic parameters were observed with regard to the variation of aging temperatures and aging time. The enthalpy and entropy were observed increase with increasing the aging temperatures and aging times.
format	Thesis
qualification_level	Master's degree
author	Abed Shakir, Ali
author_facet	Abed Shakir, Ali
author_sort	Abed Shakir, Ali
title	The effect of aging treatment on the microstructure and thermodynamic parameters of CuA1Ni-Mn shape memory alloys (SMAs)
title_short	The effect of aging treatment on the microstructure and thermodynamic parameters of CuA1Ni-Mn shape memory alloys (SMAs)
title_full	The effect of aging treatment on the microstructure and thermodynamic parameters of CuA1Ni-Mn shape memory alloys (SMAs)
title_fullStr	The effect of aging treatment on the microstructure and thermodynamic parameters of CuA1Ni-Mn shape memory alloys (SMAs)
title_full_unstemmed	The effect of aging treatment on the microstructure and thermodynamic parameters of CuA1Ni-Mn shape memory alloys (SMAs)
title_sort	effect of aging treatment on the microstructure and thermodynamic parameters of cua1ni-mn shape memory alloys (smas)
granting_institution	Universiti Teknologi Malaysia, Faculty of Mechanical Engineering
granting_department	Faculty of Mechanical Engineering
publishDate	2014
url	http://eprints.utm.my/id/eprint/48641/1/AliAbedShakirMFKM2014.pdf
_version_	1747817440036782080

The effect of aging treatment on the microstructure and thermodynamic parameters of CuA1Ni-Mn shape memory alloys (SMAs)

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