Effect of a fourth alloying element on the microstructure and mechanical properties of Cu-Al-Ni shape memory alloys

The present investigation aims to enhance the mechanical properties and shape memory characteristics of Cu–Ni–Al shape memory alloys (SMAs) by alloying additional elements. These additions were found to control the phase morphology and grain size, along with the formation of different volume fractio...

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Main Authors:	Saud, Safaa N., Hamzah, Esah, Abubakar, Tuty, Ibrahim, Mustafa K.
Format:	Article
Published:	Cambridge University Press 2015
Subjects:	TJ Mechanical engineering and machinery
Online Access:	http://eprints.utm.my/id/eprint/58349/ http://dx.doi.org/10.1557/jmr.2015.196
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Institution:	Universiti Teknologi Malaysia

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spelling	my.utm.583492021-07-28T01:51:46Z http://eprints.utm.my/id/eprint/58349/ Effect of a fourth alloying element on the microstructure and mechanical properties of Cu-Al-Ni shape memory alloys Saud, Safaa N. Hamzah, Esah Abubakar, Tuty Ibrahim, Mustafa K. TJ Mechanical engineering and machinery The present investigation aims to enhance the mechanical properties and shape memory characteristics of Cu–Ni–Al shape memory alloys (SMAs) by alloying additional elements. These additions were found to control the phase morphology and grain size, along with the formation of different volume fractions, sizes, and distributions of precipitates. The features of the precipitates were mainly dependent on the type of alloying element. It was found that a Co (1.14 wt%) alloy gave the best overall improvement in terms of the transformation temperatures, ductility, and shape memory recovery. These improvements were mainly due to the exceptionally high presence of the γ2 phase in the microstructures of the modified alloy. The results of the current investigation were analyzed and compared to those of previous studies related to Cu–Al–Ni. Cambridge University Press 2015-06-30 Article PeerReviewed Saud, Safaa N. and Hamzah, Esah and Abubakar, Tuty and Ibrahim, Mustafa K. (2015) Effect of a fourth alloying element on the microstructure and mechanical properties of Cu-Al-Ni shape memory alloys. Jourl Of Materials Research, 30 (14). pp. 2258-2269. ISSN 8839-514 http://dx.doi.org/10.1557/jmr.2015.196 DOI:10.1557/jmr.2015.196
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/
topic	TJ Mechanical engineering and machinery
spellingShingle	TJ Mechanical engineering and machinery Saud, Safaa N. Hamzah, Esah Abubakar, Tuty Ibrahim, Mustafa K. Effect of a fourth alloying element on the microstructure and mechanical properties of Cu-Al-Ni shape memory alloys
description	The present investigation aims to enhance the mechanical properties and shape memory characteristics of Cu–Ni–Al shape memory alloys (SMAs) by alloying additional elements. These additions were found to control the phase morphology and grain size, along with the formation of different volume fractions, sizes, and distributions of precipitates. The features of the precipitates were mainly dependent on the type of alloying element. It was found that a Co (1.14 wt%) alloy gave the best overall improvement in terms of the transformation temperatures, ductility, and shape memory recovery. These improvements were mainly due to the exceptionally high presence of the γ2 phase in the microstructures of the modified alloy. The results of the current investigation were analyzed and compared to those of previous studies related to Cu–Al–Ni.
format	Article
author	Saud, Safaa N. Hamzah, Esah Abubakar, Tuty Ibrahim, Mustafa K.
author_facet	Saud, Safaa N. Hamzah, Esah Abubakar, Tuty Ibrahim, Mustafa K.
author_sort	Saud, Safaa N.
title	Effect of a fourth alloying element on the microstructure and mechanical properties of Cu-Al-Ni shape memory alloys
title_short	Effect of a fourth alloying element on the microstructure and mechanical properties of Cu-Al-Ni shape memory alloys
title_full	Effect of a fourth alloying element on the microstructure and mechanical properties of Cu-Al-Ni shape memory alloys
title_fullStr	Effect of a fourth alloying element on the microstructure and mechanical properties of Cu-Al-Ni shape memory alloys
title_full_unstemmed	Effect of a fourth alloying element on the microstructure and mechanical properties of Cu-Al-Ni shape memory alloys
title_sort	effect of a fourth alloying element on the microstructure and mechanical properties of cu-al-ni shape memory alloys
publisher	Cambridge University Press
publishDate	2015
url	http://eprints.utm.my/id/eprint/58349/ http://dx.doi.org/10.1557/jmr.2015.196
_version_	1706956954892500992

Effect of a fourth alloying element on the microstructure and mechanical properties of Cu-Al-Ni shape memory alloys

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