V对Fe-Mn-Si合金不同变形条件下马氏体相变的影响  

Effect of V on martensite transformation characteristics of Fe-Mn-Si alloy under different deformation conditions

作　　者：刘林林[1] 董华军[1] 林成新[2] 

机构地区：[1]大连交通大学机械工程学院,辽宁大连116028 [2]大连海事大学交通运输装备与海洋工程学院,辽宁大连116026

出　　处：《材料热处理学报》2017年第12期41-45,共5页Transactions of Materials and Heat Treatment

基　　金：辽宁省自然基金(201705400111);辽宁省高等学校优秀人才(LJQ2014046)

摘　　要：采用X射线衍射和透射电镜研究了V对Fe-Mn-Si合金不同变形条件下的马氏体相变特性的影响。研究表明:相同变形条件下,Fe-17Mn-5Si-2Cr-2Ni-1V合金中ε马氏体含量比Fe-17Mn-5Si-10Cr-5Ni合金的要多,且ε马氏体量的变化速率远低于Fe-17Mn-5Si-10Cr-5Ni合金。Fe-17Mn-5Si-10Cr-5Ni和Fe-17Mn-5Si-2Cr-2Ni-1V合金的应力松弛率均随停载时间的增加而增大,且Fe-17Mn-5Si-2Cr-2Ni-1V合金的松弛率大大低于Fe-17Mn-5Si-10Cr-5Ni合金。Effect of V on martensite transformation characteristics of Fe-Mn-Si alloy with different deformation conditions was studied by means of XRD and TEM. The results show that under the same deformation condition,the content of ε martensite of Fe-17 Mn-5 Si-2 Cr-2 Ni-1 V alloy is higher than that of Fe-17 Mn-5 Si-10 Cr-5 Ni alloy,and the change rate of ε martensite content is much lower than that of Fe-17 Mn-5 Si-10 Cr-5 Ni alloy. The stress relaxation ratio of Fe-17 Mn-5 Si-10 Cr-5 Ni alloy and Fe-17 Mn-5 Si-2 Cr-2 Ni-1 V alloy increases with the increasing of the suspending loading time,and the relaxation ratio of Fe-17 Mn-5 Si-2 Cr-2 Ni-1 V alloy is significantly lower than that of Fe-17 Mn-5 Si-10 Cr-5 Ni alloy.

关 键 词：FE-MN-SI合金 应力松弛 马氏体相变 形状恢复率 

分 类 号：TG139.6[一般工业技术—材料科学与工程]