中国机械工程2016，Vol.27Issue(8)：1117-1122,6.DOI:10.3969/j.issn.1004-132X.2016.08.022
应变强化对022Cr17Ni12Mo2奥氏体不锈钢显微组织和力学行为的影响
Effects of Strain strengthening on Microstructure and Mechanics Behavior of 022Cr17Ni12Mo2 Austenitic Stainless Steel
摘要
Abstract
The effects of strain�strengthening on microstructure and mechanics behavior of 022Cr17Ni12Mo2 austenitic stainless steel were investigated by universal testing machine,X�ray difG fraction,optical microscopy,and transmission electron microscopy.The results show that there is no phase transformation during the early stage of pre�strain strengthening.With the increase of deformaG tion twins,the cold deformation can enhance the strength and hardness significantly,whereas the ductility of the steel is decreased.The deformation twinning induced strength effects are occurred. Meanwhile,the strain�strengthening ability of the strengthened steel and the transient strain are weakened with increase of the pre�strain.The appearance of deformation twins makes the change of disloG cation slip mode,which transforms from single�slip and planar�slip to multiple�slip and cross�slip.关键词
应变强化/形变孪晶诱发强度/力学行为/022Cr17Ni12Mo2奥氏体不锈钢Key words
strain strengthening/deformation twinning induced strength/mechanics behavior/022Cr17Ni12Mo2 austenitic stainless steel分类
矿业与冶金引用本文复制引用
孔韦海,陈学东,闫永超,胡盼..应变强化对022Cr17Ni12Mo2奥氏体不锈钢显微组织和力学行为的影响[J].中国机械工程,2016,27(8):1117-1122,6.基金项目
安徽省自然科学基金资助项目(1308085ME69) （1308085ME69）
合肥通用机械研究院青年科技基金资助项目(2013010646) （2013010646）
