Fe-Mn-Si 合金中层错几率和淬火空位对ε马氏体相变温度的影响  

Effect of Stacking Fault Probability and Quenched in Vacancies on ε Martensitic Transformation Temperature in Fe Mn Si Alloy

作　　者：漆璇[1] 江伯鸿[1] 周伟敏[1] 徐祖耀[1] 

机构地区：[1]上海交通大学材料科学系

出　　处：《上海交通大学学报》1998年第2期45-48,共4页Journal of Shanghai Jiaotong University

基　　金：国家自然科学基金

摘　　要：用Ｘ衍射线形分析法测定了Ｆｅ－３０．３％Ｍｎ－６．１％Ｓｉ（质量分数）形状记忆合金经不同温度淬火和经退火后的层错几率Ｐｓｆ．研究了淬火空位、层错几率与马氏体相变点Ｍｓ的关系．结果表明，增加淬火空位将促进层错的形成，使Ｍｓ提高；且Ｍｓ与１／Ｐｓｆ呈线性关系．对可能的机理进行了讨论．The stacking fault probabilities of an Fe 30.3 wt%Mn 6.1 wt%Si SMA for the states of quenching at different austenizing temperature and the state of annealing are measured by X ray diffraction profile analysis. The relationship between the quenched in vacancies, the stacking fault probability and the transformation point of ε martensite, M s, is revealed. The results show that increasing the quenched in vacancies will promote the formation of stacking faults and to enhance the M s temperature. The linear relationship between M s and P sf is as follows: M s=330.7-0.405/ P sf (K). The possible mechanism is discussed.

关 键 词：形状记忆合金 层错几率 淬火空位 ε-马氏体相变点 

分 类 号：TG139.6[一般工业技术—材料科学与工程]