碳化物含量与分布对精冲用碳钢力学性能的影响  

Influence of Cementite Content and Distribution on Mechanical Behavior of Fine Blanking Steel

作　　者：徐成[1] 庄新村[1] 赵震[1] 

机构地区：[1]上海交通大学塑性成形技术与装备研究院,上海200030

出　　处：《上海交通大学学报》2015年第10期1452-1456,1463,共6页Journal of Shanghai Jiaotong University

基　　金：国家科技重大专项课题(2011ZX04016-051)资助

摘　　要：通过建立基于材料微观组织(代表性体积单元)的数值模型,对铁素体-碳化物钢的单向拉伸过程进行了数值模拟,分析了碳化物的含量及其带状分布对铁素体-碳化物钢力学性能的影响.结果表明:碳化物含量越多,精冲用碳钢的整体耐变形能力越强;碳化物的带状分布降低了其塑性.A microstructure based approach by means of representative volume element（RVE）was employed to predict the mechanical properties of ferrite-cementite steels.A 2D RVE numerical analysis was then conducted to investigate the influences of cementite content and distribution on ferrite-cementite steels.The numerical analysis shows that the deformation resistance of ferrite-cementite steel increases with the cementite increaseing while the zonal distribution of cementites decreases the plasticity of the steel.

关 键 词：碳化物 精冲用碳钢 代表性体积单元 力学性能 

分 类 号：TG115.5[金属学及工艺—物理冶金]