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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
http://eprints.utm.my/id/eprint/48641/
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spelling my.utm.486412020-03-05T06:58:51Z http://eprints.utm.my/id/eprint/48641/ The effect of aging treatment on the microstructure and thermodynamic parameters of CuA1Ni-Mn shape memory alloys (SMAs) 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 NonPeerReviewed application/pdf en http://eprints.utm.my/id/eprint/48641/1/AliAbedShakirMFKM2014.pdf Abed Shakir, Ali (2014) The effect of aging treatment on the microstructure and thermodynamic parameters of CuA1Ni-Mn shape memory alloys (SMAs). Masters thesis, Universiti Teknologi Malaysia, Faculty of Mechanical Engineering. 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
institution Universiti Teknologi Malaysia
building UTM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Teknologi Malaysia
content_source UTM Institutional Repository
url_provider http://eprints.utm.my/
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
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)
publishDate 2014
url http://eprints.utm.my/id/eprint/48641/1/AliAbedShakirMFKM2014.pdf
http://eprints.utm.my/id/eprint/48641/
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
_version_ 1662754263346970624
score 13.211869

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