MATERIALS TRANSACTIONS
Online ISSN : 1347-5320
Print ISSN : 1345-9678
ISSN-L : 1345-9678
Superelastic Property of Ti-Ni Alloy Produced by Casting After SHS
Kazuhiro KitamuraToshio KuchidaTadashi InabaMasataka TokudaYukiharu Yoshimi
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2006 Volume 47 Issue 11 Pages 2867-2870

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Abstract

The superelastic properties of cast Ti-Ni shape memory alloy (SMA) were studied. Base materials were prepared as a melting method ingot and as a self-propagating high-temperature synthesis (SHS) ingot. The composition of these ingots was Ti-50.8 at%Ni. Each ingot was cast into a rod shape by centrifugal casting. The heat-treatment conditions were 773 K for-1.8 ks and 773 K–1.8 ks → 873 K–3.6 ks. Shape memory characteristics were measured by differential scanning calorimetry (DSC), X-ray diffraction (XRD) and a tensile test. All casting specimens have good shape memory characteristics. According to DSC measurements, the melt method specimens show gravity segregation.

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© 2006 The Japan Institute of Metals and Materials
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