Effect of Annealing Temperature on Microstructure and Superelastic Properties of Ti-Au-Cr-Zr Alloy

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Effect of annealing temperature on microstructure and superelasticity of Ti-4Au-5Cr-8Zr (mol%) was investigated. Only β phase was observed in the specimen annealed at 1173 K, whereas the precipitation of Ti<sub>3</sub>Au, Zr<sub>33</sub>Ti<sub>40</sub>Au<sub>27</sub> (Laves phase) and α phase occurred in the specimens annealed below 1073 K. Superelasticity was clearly observed in the specimens annealed at 1073 K and 1173 K, though it was absent in the specimens annealed at 873 K and 973 K. The maximum superelastic recovery strain was increased by the precipitation of Ti<sub>3</sub>Au in the specimen annealed at 1073 K. This is due to the increase in the critical stress for slip by the precipitation strengthening effect of Ti<sub>3</sub>Au.

収録刊行物

  • MATERIALS TRANSACTIONS

    MATERIALS TRANSACTIONS 56(3), 404-409, 2015

    公益社団法人 日本金属学会

各種コード

  • NII論文ID(NAID)
    130004825270
  • NII書誌ID(NCID)
    AA1151294X
  • 本文言語コード
    ENG
  • ISSN
    1345-9678
  • NDL 記事登録ID
    026220615
  • NDL 請求記号
    Z53-J286
  • データ提供元
    NDL  J-STAGE 
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