The Proceedings of Mechanical Engineering Congress, Japan
Online ISSN : 2424-2667
ISSN-L : 2424-2667
2011
Session ID : S041023
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S041023 Fabrication of Ti-Nb-Cu Shape Memory Alloys by PM Process and Their Properties
Daijiro OISHI, Hideki KYOGOKU, Akira TERAYAMA
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Keywords: Ti-Nb-Cu shape memory alloy, Powder metallurgy process, Mechanical properties, Shape memory properties
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Abstract
Ti-Nb-Cu shape memory alloys were fabricated by powder metallurgy (PM) process. The fabrication conditions of the alloys and their shape memory properties were investigated. The relative density of the as-sintered alloy was more than 96% at a sintering temperature of more than 1123 K. It was found that the solution treatment is needed to homogenize the microstructure of the as-sintered alloy. Ti-18at%Nb-3at%Cu alloy clearly showed a two-step deformation and a superelastic behavior.
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© 2011 The Japan Society of Mechanical Engineers
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