Effect of Zr Addition on Mechanical and Shape Memory Properties of Ti-5Mo-3Sn Alloys
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- Endoh Kazuki
- Precision and Intelligence Laboratory, Tokyo Institute of Technology
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- Tahara Masaki
- Precision and Intelligence Laboratory, Tokyo Institute of Technology
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- Inamura Tomonari
- Precision and Intelligence Laboratory, Tokyo Institute of Technology
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- Kim Hee Young
- Graduate School of Pure and Applied Science, University of Tsukuba
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- Miyazaki Shuichi
- Graduate School of Pure and Applied Science, University of Tsukuba
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- Hosoda Hideki
- Precision and Intelligence Laboratory, Tokyo Institute of Technology
Bibliographic Information
- Other Title
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- Ti-5Mo-3Sn 合金の機械的性質と形状記憶特性に及ぼす Zr 添加の影響
- Ti-5Mo-3Sn ゴウキン ノ キカイテキ セイシツ ト ケイジョウ キオク トクセイ ニ オヨボス Zr テンカ ノ エイキョウ
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Abstract
The effects of Zr addition on the mechanical, shape memory and superelastic properties of Ti-5Mo-3Sn (mol%) based alloys were investigated with Zr content up to 24 mol%. The parent bcc phase was stabilized with increasing Zr content, and the volume fraction of the ω phase seemed independent of the Zr content. The ultimate tensile strength and fracture strain increased with increasing Zr content up to 6 mol%Zr, however, the alloy became brittle with further addition of Zr content over 8 mol%. Young's modulus was low around 37~38 GPa when Zr content was 2~6 mol%. Shape memory effect was confirmed when Zr content was less than 5 mol%, and the superelasticity appeared in 6 mol%Zr-added alloy with the good shape recovery strain of 4.3%. When the Zr addition exceeded 6 mol%, the slip deformation occurred. The slip stress was raised by Zr addition with a rate of 9.5 MPa/mol%Zr in the alloys containing 2~6 mol%Zr. It is concluded for Ti-5Mo-3Sn based alloys that Zr addition is effective to improve the mechanical properties without degradation of lattice transformation strain, and that good room-temperature superelasticity appears in the Ti-5Mo-3Sn-6Zr alloy.<br>
Journal
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- Journal of the Japan Institute of Metals and Materials
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Journal of the Japan Institute of Metals and Materials 80 (1), 37-44, 2015
The Japan Institute of Metals and Materials
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Details 詳細情報について
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- CRID
- 1390282681458512128
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- NII Article ID
- 130005115565
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- NII Book ID
- AN00187860
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- ISSN
- 18806880
- 24337501
- 00214876
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- NDL BIB ID
- 027051546
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- Text Lang
- ja
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- Data Source
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- JaLC
- NDL
- Crossref
- CiNii Articles
- KAKEN
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- Abstract License Flag
- Disallowed