典型文献
Enhanced strength and toughness in 40CrNiMo steels by austempering below martensite start temperature
文献摘要：
The austempering above and below martensite transition temperature(Ms)was employed in a medium-carbon low-alloy 40CrNiMo steel,and the bainite and martensite multiphase microstructures with different volume fractions were obtained.Here,the effect of pre-existing martensite on subsequent transformation of bainite microstructure and mechanical prop-erties is focused and researched.The microstructure with a volume fraction of pre-existing martensite(VPM),bainite(VB),and martensite/austenite(VM/A)constituents of approximately 28％,46％,and 26％,respectively could be obtained by austenitizing below Ms(280℃)for 1 h,and an optimum combination of strength,ductility,and impact toughness(yield strength of 1420 MPa,ultimate tensile strength of 1795 MPa,total elongation of 7.9％,and V-notch impact value of 37 J)was achieved.The considerable enhancement of mechanical properties in the sample austenitized below Ms is mainly ascribed to the formation of the pre-existing martensite,resulting in an effective reduction in the size of the bainite plates and martensite/austenite constituents.
文献关键词：
中图分类号：
作者姓名：
Xiao-xiao Liu;Zheng Zhang;Jie Zhang;Ran Yang;Cheng-shuang Yu;Jun-wei Qiao;Li-na Han
作者机构：
College of Materials Science and Engineering,Taiyuan University of Technology,Taiyuan 030024,Shanxi,China;Zhejiang Laifual Drive Co.,Ltd.,Shaoxing 312462,Zhejiang,China
文献出处：
引用格式：
[1]Xiao-xiao Liu;Zheng Zhang;Jie Zhang;Ran Yang;Cheng-shuang Yu;Jun-wei Qiao;Li-na Han-.Enhanced strength and toughness in 40CrNiMo steels by austempering below martensite start temperature)[J].钢铁研究学报（英文版）,2022(05):810-818
A类：
austempering,austenitizing,austenitized
B类：
Enhanced,strength,toughness,40CrNiMo,steels,by,below,martensite,start,temperature,above,transition,Ms,was,employed,medium,carbon,alloy,bainite,multiphase,microstructures,different,volume,fractions,were,obtained,Here,pre,existing,subsequent,transformation,mechanical,focused,researched,VPM,VB,austenite,VM,constituents,approximately,respectively,could,optimum,combination,ductility,impact,yield,ultimate,tensile,total,elongation,notch,value,achieved,considerable,enhancement,properties,sample,mainly,ascribed,resulting,effective,reduction,size,plates
AB值：
0.460121
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