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Effect of Ta content on mechanical properties of Ti–30Nb–XTa–5Zr

✍ Scribed by Nobuhito Sakaguchi; Mitsuo Niinomi; Toshikazu Akahori; Junji Takeda; Hiroyuki Toda

Book ID
103844933
Publisher
Elsevier Science
Year
2005
Tongue
English
Weight
264 KB
Volume
25
Category
Article
ISSN
0928-4931

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✦ Synopsis

In this study, we investigated the effect of Ta content on the mechanical properties of Ti -30Nb -XTa -5Zr fabricated by a powder metallurgy method, for biomedical applications. The Ta content ranged from 0% to 20 mass%.

The microstructures of Ti -30Nb -XTa -5Zr that contain less than 5 mass% Ta comprise h phase and an N phase. The tensile properties of Ti -30Nb -XTa -5Zr change with a change in their deformation mechanisms. The deformation mechanisms of Ti -30Nb -XTa -5Zr, which contains less than 10 mass% Ta, is the stress-induced martensite (SIM) transformation, while that of Ti -30Nb -XTa -5Zr, which contains over 20 mass% Ta, is the slip mechanism. The minimum elastic modulus is obtained in Ti -30Nb -10Ta -5Zr, which comprises a single h phase.

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