Plastic Deformation and Damage Behavior of AL6XN Super-Austenitic Stainless Steels

摘要：

Tensile and compressive deformation and damage behaviors of Al6XN super-austenitic stainless steels were examined at different strain rates. The deformation and fracture surfaces were characterized by scanning electron microscopy (SEM). It was found that the uniaxial deformation (tensile or compressive) behaviors of Al6XN stainless steel shows a low strain rate sensitivity over the range of 10-4s-1 - 10-2s-1. The tensile and compressive yield strengths measured are nearly comparable. The steel shows a good tensile plasticity. Dislocation slip deformation is the main characteristic of uniaxial deformation. All fracture surfaces induced by tensile deformation at different strain rates can be divided into two parts, i.e., fibrous zone and shear lip zone. The fibrous zone consists of dimples with a bimodal size.

关键词： Austenitic stainless steel Plastic deformation Damage Tension Compression Strain rate Fracture surface

作者: Chao-Qun Ma Qi-Qiang Duan Xiao-Wu Li

作者单位: Institute of Materials Physics and Chemistry, College of Sciences, P.O. Box 104, Northeastern Univer Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of

会议类型: 国际会议

会议名称: 第二届多功能材料与结构国际会议

会议地点: 青岛

会议语种:英文

页码: 1951-1954

在线出版日期: 2009-10-09（万方平台首次上网日期，不代表论文的发表时间）