EFFECT OF VELOCITY OF BALLS ON THE STRAIN AND STRESS OF LOW CARBON STEEL SURFACE LAYER DURING SMAT
By means of finite element method, the effect of velocity of balls on the strain and stress of low carbon steel surface layer during the course of surface mechanical attrition treatment (SMAT) are investigated. The effect of different impact velocity on strain rate and grain refinement mechanism is also analyzed. Calculation results confirm that there exists severe plastic deformation in the surface layer: strain, strain rate and stress gradually decrease along the depth of the treated sample during SMAT, which is in agreement with the microstructures observed in corresponding locations. Strain and strain rate play an important role in the grain refinement process and the resultant grain sizes upon plastic deformation.
Low carbon steel SMAT plastic deformation strain and stress strain rate
HUAYUN DU YINGHUI WEI HENGJIN ZHANG WANMING LIN LIFENG HOU ZENGQING LIU GANG LIU
College of Materials Science and Engineering, Taiyuan University of Technology, Taiyuan, Peoples Re Institute of Metal Research, the Chinese Academy of Sciences, Shenyang, Peoples Republic of China
国际会议
第五届先进材料与加工国际会议(Fifth International Conference on Advanced Materials and Processing ICAMP-5)
哈尔滨
英文
1924-1930
2008-09-03（万方平台首次上网日期，不代表论文的发表时间）