摘要
研究了预变形量和时效温度对Fe-28Mn-5．7Si-5Cr-0．82Ni-0．045Nb合金形状记忆效应的影响。结果表明，合金形状回复率随预变量的增大而减小，在2％左右合金回复率可以达到80％。合金经1023K时效处理时形状记忆效应最好，比固溶态提高了90％，这主要是时效处理有效提高了奥氏体基体的强度，而奥氏体基体的强度的提高可以抑制塑性变形的产生。
This paper discussed the effect of pre-deformation and aging temperature on the recovery ratio of Fe-28Mn-5.7Si-5Cr-0.82Nb-0.045Ce shape memory alloy（SMA）. The results indicate that the recovery ratio of Fe-28Mn-5.7Si-5Cr-0.82Ni-0.045Nb SMA decreases with the increasing of pre-deformation, and the recovery ratio can reach 80% when the pre-deformation is 2%. In addition, the recovery ratio of the alloy increase with the aging temperature increase, and the recovery ratio reach the maximum at 1023K, raised 90% than the solution state, the reason for which is the strength of the matrix alloy is raised by the aging treatment.
出处
《功能材料》
EI
CAS
CSCD
北大核心
2007年第A08期3234-3235,共2页
Journal of Functional Materials
基金
江苏省自然科学基金资助项目（BK2005112）
江苏省高校自然科学研究资助项目（05KJD430082）
