Shape memory effect and compositional dependence of Zr-Cu binary and Zr-Cu-Al ternary alloys

The intermetallic compound ZrCu experiences a transformation from a parent phase into a martensitic phase with rapid cooling. ZrCu possesses considerable promise as a high-temperature shape memory alloy. In the present study, the shape memory effects of ZrCu, which was formed in a Zr-Cu-Al ternary a...

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Main Authors: Hitoo TOKUNAGA, Hideki YOSHIOKA
Format: Article
Language:English
Published: The Japan Society of Mechanical Engineers 2017-08-01
Series:Mechanical Engineering Journal
Subjects:
Online Access:https://www.jstage.jst.go.jp/article/mej/4/5/4_16-00715/_pdf/-char/en
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author Hitoo TOKUNAGA
Hideki YOSHIOKA
author_facet Hitoo TOKUNAGA
Hideki YOSHIOKA
author_sort Hitoo TOKUNAGA
collection DOAJ
description The intermetallic compound ZrCu experiences a transformation from a parent phase into a martensitic phase with rapid cooling. ZrCu possesses considerable promise as a high-temperature shape memory alloy. In the present study, the shape memory effects of ZrCu, which was formed in a Zr-Cu-Al ternary alloy, was investigated. The Zr-Cu binary and Zr-Cu-Al ternary alloys with different alloy compositions were prepared. The crystalline structure, martensitic transformation temperature and macroscopic shape recovery behavior of these alloys were evaluated by means of X-ray diffraction, differential scanning calorimetry and compressive tests; the crystalline structure of the ZrCu in Zr-Cu-Al alloys varies with increasing Al concentration. In addition, it was confirmed that both the Zr-Cu binary and Zr-Cu-Al ternary alloys possess shape memory effects. Furthermore, it was found that the macroscopic shape recovery temperatures of these alloys decrease with increasing Al concentration.
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spelling doaj.art-3bc6881bc0f946bcaed6108b3905579d2022-12-21T19:29:14ZengThe Japan Society of Mechanical EngineersMechanical Engineering Journal2187-97452017-08-014516-0071516-0071510.1299/mej.16-00715mejShape memory effect and compositional dependence of Zr-Cu binary and Zr-Cu-Al ternary alloysHitoo TOKUNAGA0Hideki YOSHIOKA1National Institute of Technology, Kagoshima CollegeAdvanced course of National Institute of Technology, Ube CollegeThe intermetallic compound ZrCu experiences a transformation from a parent phase into a martensitic phase with rapid cooling. ZrCu possesses considerable promise as a high-temperature shape memory alloy. In the present study, the shape memory effects of ZrCu, which was formed in a Zr-Cu-Al ternary alloy, was investigated. The Zr-Cu binary and Zr-Cu-Al ternary alloys with different alloy compositions were prepared. The crystalline structure, martensitic transformation temperature and macroscopic shape recovery behavior of these alloys were evaluated by means of X-ray diffraction, differential scanning calorimetry and compressive tests; the crystalline structure of the ZrCu in Zr-Cu-Al alloys varies with increasing Al concentration. In addition, it was confirmed that both the Zr-Cu binary and Zr-Cu-Al ternary alloys possess shape memory effects. Furthermore, it was found that the macroscopic shape recovery temperatures of these alloys decrease with increasing Al concentration.https://www.jstage.jst.go.jp/article/mej/4/5/4_16-00715/_pdf/-char/ensmart materialshigh-temperature shape memory alloymacroscopic shape recoverymartensitic transformationzr-cu system alloyintermetallic compound
spellingShingle Hitoo TOKUNAGA
Hideki YOSHIOKA
Shape memory effect and compositional dependence of Zr-Cu binary and Zr-Cu-Al ternary alloys
Mechanical Engineering Journal
smart materials
high-temperature shape memory alloy
macroscopic shape recovery
martensitic transformation
zr-cu system alloy
intermetallic compound
title Shape memory effect and compositional dependence of Zr-Cu binary and Zr-Cu-Al ternary alloys
title_full Shape memory effect and compositional dependence of Zr-Cu binary and Zr-Cu-Al ternary alloys
title_fullStr Shape memory effect and compositional dependence of Zr-Cu binary and Zr-Cu-Al ternary alloys
title_full_unstemmed Shape memory effect and compositional dependence of Zr-Cu binary and Zr-Cu-Al ternary alloys
title_short Shape memory effect and compositional dependence of Zr-Cu binary and Zr-Cu-Al ternary alloys
title_sort shape memory effect and compositional dependence of zr cu binary and zr cu al ternary alloys
topic smart materials
high-temperature shape memory alloy
macroscopic shape recovery
martensitic transformation
zr-cu system alloy
intermetallic compound
url https://www.jstage.jst.go.jp/article/mej/4/5/4_16-00715/_pdf/-char/en
work_keys_str_mv AT hitootokunaga shapememoryeffectandcompositionaldependenceofzrcubinaryandzrcualternaryalloys
AT hidekiyoshioka shapememoryeffectandcompositionaldependenceofzrcubinaryandzrcualternaryalloys