Signifcant impact of cold-rolling deformation and annealing on damping capacity of Fe-Mn-Cr alloy  

作　　者：Bo Xia Xiao-ming Zhang R.D.K.Misra Ming-ming Pan Yu-qian Wang 

机构地区：[1]State Key Laboratory of Rolling and Automation,Northeastern University,Shenyang 110819,Liaoning,China [2]Laboratory for Excellence in Advanced Steel Research,Department of Metallurgical,Materials and Biomedical Engineering,University of Texas at El Paso,El Paso,TX 79668,USA

出　　处：《Journal of Iron and Steel Research International》2020年第5期566-576,共11页

基　　金：This work was financially supported by the National Key R&D Program of China(Grant No.2016YFB0300303)。

摘　　要：The infuences of cold-rolling deformation and annealing on the damping capacity of Fe-19Mn-8Cr alloy were investigated.It was observed that the cold-rolled Fe-19Mn-8Cr alloy with a reduction of 10%showed the relatively excellent damping capacity because of the relatively moreε-martensite and lower dislocation density,and the reduction of slopes of diferent damping curves increased along with increasing the cold-rolling reduction.Besides,the subsequent annealing process can further enhance the damping capacity.After 70%cold-rolling deformation,the austenite grain would grow up with the increase in the annealing temperature,which resulted in a signifcant change in the content and morphology ofε-martensite infuencing the damping capacity of the experimental steel.The damping capacity was optimum when annealed at 800°C for 30 min,displaying that the size ofε-martensite has a vital infuence on the damping capacity of the experimental alloy.This study may enrich the fundamental knowledge about how to ameliorate the damping capacity of Fe-Mn-Cr damping steels.

关 键 词：Damping capacity Fe-19Mn-8Cr damping alloy ε-martensite α′-martensite Cold rolling 

分 类 号：TG141[一般工业技术—材料科学与工程]