The Effect of Dislocation Density on the Mechanical Properties and Deformation Twinning of a TWIP Steel

摘要：

　　The contributions of individual mechanisms to the work hardening of a Fe-18Mn-0.6C-1.5Al-0.8Si twinning-induced plasticity (TWIP) steel were separated,based on the constitutive model cooperated with dislocation density evolution.The evolution of dislocation density with strain was determined by the synchrotron X-ray diffraction (XRD) experiments.It was found that the volume fraction of twins did not exceed 20 % at fracture,and was further suppressed by increasing the initial dislocation density.

关键词： TWIP steel dislocation density Twins synchrotron X-ray diffraction

作者: LI Y. Z. LIANG Z. Y. HUANG M.X.

作者单位: Shenzhen Institute of Research and Innovation, The University of Hong Kong, Shenzhen, China; Department of Mechanical Engineering, The University of Hong Kong, Hong Kong, China

会议类型: 国际会议

会议名称: the 1st International Conference on Automobile Steel & The 3rd International Conference on High Manganese Steels (第一届国际汽车用钢大会暨第三届高锰钢国际会议)

会议地点: 成都

会议语种:英文

页码: 87-90

在线出版日期: 2016-11-16（万方平台首次上网日期，不代表论文的发表时间）