Shape memory characteristics of Fe-30Mn-5Si-1Al and Fe28Mn-5Si-1 AI-5Cr alloys

M. Koyama, M. Murakami, K. Ogawa, T. Kikuchi, S. Sawaguchi

研究成果: Conference contribution

抜粋

We have recently reported that the ductility of Fe-Mn-Si shape memory alloys can be greatly improved by replacing a part of Si with a small amount of Al without decaying the shape memory effect. Enhancement of the ductility is ascribed to the introduction of deformation twins in addition to stress-induced hep martensite on loading. In this work, the shape recovery strains and recovery temperatures were measured for Fe-30Mn-5Si-1A1 alloy and corrosion-resistant Fe-28Mn-5Si-1A1-5Cr alloy. The maximum shape recovery strain of Al-added alloys exceeded 2%, which was comparable to those of the alloys without Al addition. The initial tensile strain required for obtaining the maximum shape recovery strain was about 8% in Al-added alloys, which was about twice larger than that of non-Al alloys, probably due to the intrusion of deformation twins. It was also found that the shape recovery finishing temperature was as low as 470K.

元の言語English
ホスト出版物のタイトルSMST-2007 - Proceedings of the International Conference on Shape Memory and Superelastic Technologies
ページ653-658
ページ数6
DOI
出版物ステータスPublished - 2008 12 1
イベントInternational Conference on Shape Memory and Superelastic Technologies, SMST-2007 - Tsukuba, Japan
継続期間: 2007 12 22007 12 5

出版物シリーズ

名前SMST-2007 - Proceedings of the International Conference on Shape Memory and Superelastic Technologies

Conference

ConferenceInternational Conference on Shape Memory and Superelastic Technologies, SMST-2007
Japan
Tsukuba
期間07/12/207/12/5

    フィンガープリント

ASJC Scopus subject areas

  • Mechanics of Materials

これを引用

Koyama, M., Murakami, M., Ogawa, K., Kikuchi, T., & Sawaguchi, S. (2008). Shape memory characteristics of Fe-30Mn-5Si-1Al and Fe28Mn-5Si-1 AI-5Cr alloys. : SMST-2007 - Proceedings of the International Conference on Shape Memory and Superelastic Technologies (pp. 653-658). (SMST-2007 - Proceedings of the International Conference on Shape Memory and Superelastic Technologies). https://doi.org/10.1361/cp2007smst653