Alloy Design and Microstructural Control in Ductile Cn-Al-Mn-based Shape Memory Alloys

摘要：

Alloy design and microstructural control in ductile Cu-Al-Mn shape memory alloys are presented. The cold-workability is improved by control of the degree of order in the bcc β phase, and Cu-Al-Mn alloys with 17 at％Al show good cold-workability and shape memory (SM) properties, which strongly depend on the microstructure. In particular, an excellent superelastic strain of over 7％, which is much greater than that of other Cu-base SM alloys and comparable to Ti-Ni SM alloys, is obtained in the Cu-Al-Mn-Ni alloys by microstructural control of the recrystallization texture. On the other hand, a decrease in the relative grain size results in good fatigue property, enabling cyclic uses of superelasticity in practical applications.

作者: Toshihiro OMORI Yuji SUTOU Ryosuke KAINUMA Kiyohito ISHIDA

作者单位: Tohoku University Biomedical Engineering Organization, Tohoku University Institute of Multidisciplinary Research for Advanced Materials, Tohoku University Graduate School of Engineering, Tohoku University

会议类型: 国际会议

会议名称: The 13th National Symposium on Phase Diagrams China-Japan Joint Symposium on Phase Diagrams,Materials Design and Their Applications(第十三届全国相图学术会议暨中日双边相图、材料设计及其应用研讨会)

会议地点: 厦门

会议语种:英文

页码: 394-400

在线出版日期: 2006-11-08（万方平台首次上网日期，不代表论文的发表时间）