高延性Cu-Al-Mn基形状记忆合金の合金设计と组织制御(英文)
作者单位：东北大学先进医工学研究机构 东北大学先进医工学研究机构 东北大学多元物质科学研究所 东北大学大学院工学研究科
会议名称：《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》
会议日期：2006年
学科分类：08[工学] 080502[工学-材料学] 0805[工学-材料科学与工程（可授工学、理学学位）]
关 键 词：Cu-Al-Mn 形状记忆合金 合金设计 高延性
摘 要：Alloy design and microstructural control in ductile Cu-Al-Mn shape memory alloys are *** 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 *** 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 *** the other hand,a decrease in the relative grain size results in good fatigue property,enabling cyclic uses of superelasticity in practical applications.