Composition dependence of the rubber-like behavior in ζ2′-martensite of AuCd alloys

K. Otsuka, X. Ren, Y. Murakami, T. Kawano, T. Ishii, T. Ohba

研究成果: Contribution to journalArticle査読

17 被引用数 (Scopus)


The effect of aging on the rubber-like behavior of martensite in a Au-50.5 at.% Cd alloy was studied, and compared with stoichiometric Au-50% at.% Cd and a Au-49.5 at.% Cd alloy. It is found that for all these alloys the critical stress for domain reversion increases with aging, and gradually saturates at long aging time, following a Chipman function. The magnitude and the rate of the aging effect are strongly dependent on composition. The magnitude decreases monotonically with increasing Cd content, but the aging rate reaches a minimum at the stoichiometric composition. These results suggest that point defects (anti-structure defects and vacancies) play a central role in the martensite aging effect, and anti-structure defects contribute much more to the magnitude of the aging effect than vacancies do.

ジャーナルMaterials Science and Engineering A
出版ステータス出版済み - 12 15 1999

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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