Fe-Mn-Si合金不同变形条件下的马氏体相变特性Martensite transformation characteristics of Fe-Mn-Si alloy with different deformation condition
刘林林,林成新,王桂新,周超玉,孙德平
摘要(Abstract):
采用X射线衍射、透射电镜观察研究了Fe-17Mn-5Si-10Cr-5Ni形状记忆合金不同变形条件下的应力诱发ε马氏体相变及其形状记忆效应。研究表明,停载时间为0~10 min时,试验合金形状恢复率随停载时间的增加而迅速增大,停载时间超过10min时,虽然应力诱发ε马氏体量增多,但形状恢复率却减小,造成这一现象的原因是应力诱发ε马氏体的稳定化。合金试样停载10 min可以有效地提高合金的形状记忆恢复率。
关键词(KeyWords): Fe-Mn-Si形状记忆合金;变形条件;马氏体相变;形状记忆恢复率
基金项目(Foundation): 辽宁省教育厅重点实验室项目(LS2010016);; 大连市科学技术基金(2011J21DW003)
作者(Author): 刘林林,林成新,王桂新,周超玉,孙德平
DOI: 10.13289/j.issn.1009-6264.2012.06.019
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