Effect of heat treatment on cyclic deformation properties of Fe-26Mn-10AI-C steel
Fe-26Mn-10Al-C 钢的周期的变丑性质上的热处理的效果作者机构：School of Mechanical and Power EngineeringNanjing Tech UniversityNanjing 211816JiangsuChina Jiangsu Key Lab of Design and Manufacture of Extreme Pressure EquipnientNanjing 211816JiangsuChina
出 版 物：《Journal of Iron and Steel Research International》 (国际钢铁研究杂志)
年 卷 期：2019年第26卷第2期
页 面：200-210页
核心收录：
基 金：supplied by Baosteel Group, Shanghai supported by the National Key Research and Development Program of China
主 题：Fe-Mn-AI-C steel Low-cycle fatigue Cyclic hardening Cyclic softening Cyclic stress subsidence
摘 要：Fully reversed tensile-compression low-cycle fatigue tests were performed at room temperature under strain amplitude of 0.4%.The monotonic tensile results show that Fe-26Mn-10A1-C steels are fully austenite and(he optimal combination of ultimate tensile strength and total elongation was present at 950°C with 65 GPa%.The fatigue results show that the specimen at 1050°C has the maximum fatigue life of 162,000 cycles,which is much longer than twinning-induced plasticity(TWIP)steels of the same strain *** hot-forging specimen shows high similarity with TWIP steels with rapid initial cyclic hardening followed by cyclic softening and cyclic *** solution heat treatment,it is noteworthy that,after rapid initial cyclic softening,another rapid cyclic hardening and a following decrease with fluctuation were observed at 1000°*** is reas on able to believe that it is caused by K-carbides precipitated during cyclic *** interesting phenomenon is cyclic stress subsidence observed at 1050°C during its saturation stage at the last quarter of the fatigue life,and the span is about 12.5%of whole fatigue life.
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