Temperature dependence of mechanical properties in dual phase ti-6al-4v

Bhargavi Rani Anne, Masaki Tanaka, Tatsuya Morikawa

    研究成果: Chapter in Book/Report/Conference proceedingConference contribution

    抄録

    The temperature-dependent mechanical property of a forged Ti-6Al-4V (bimodal structure; α and α+ß phases) was investigated. Tensile test was performed at a wide range of temperatures between 77K to 550K. Fatigue test was also performed with corner notched specimens at the temperature range between room temperature and 550K. The temperature dependency of both the yield stress and activation volume was established from the tensile tests. The strong dependency of yield stress and activation volume was observed with respective to the temperature. At lower temperatures, from 77K to 250K, there was a decrease in yield stress with the increase in temperature, whereas abnormality in the yield stress was observed approximately at 275K, and the yield stress was decreased again with the increase in temperature at 325K. Activation volume was increased with increasing the temperature. The activation volume also shows abnormality at the temperatures where the abnormal trend was observed from yield stress. The reasons for the change in yield stress and activation volume with temperature were studied in detail.

    本文言語英語
    ホスト出版物のタイトルTHERMEC 2018
    編集者R. Shabadi, Mihail Ionescu, M. Jeandin, C. Richard, Tara Chandra
    出版社Trans Tech Publications Ltd
    ページ1479-1483
    ページ数5
    ISBN(印刷版)9783035712087
    DOI
    出版ステータス出版済み - 2018
    イベント10th International Conference on Processing and Manufacturing of Advanced Materials, 2018 - Paris, フランス
    継続期間: 7 9 20187 13 2018

    出版物シリーズ

    名前Materials Science Forum
    941 MSF
    ISSN(印刷版)0255-5476
    ISSN(電子版)1662-9752

    会議

    会議10th International Conference on Processing and Manufacturing of Advanced Materials, 2018
    国/地域フランス
    CityParis
    Period7/9/187/13/18

    All Science Journal Classification (ASJC) codes

    • 材料科学(全般)
    • 凝縮系物理学
    • 材料力学
    • 機械工学

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