High Strain Rate Induced Plasticity-increasing of Metallic Materials under Tension

作     者：唐长国 朱金华 周惠久 

作者机构：China Textile Univ Shanghai China 

出 版 物：《Journal of China Textile University(English Edition)》 (J China Text Univ Engl Ed)

年 卷 期：1998年第15卷第4期

页      面：17-21页

核心收录：

学科分类：08[工学] 080502[工学-材料学] 0805[工学-材料科学与工程（可授工学、理学学位）] 

主　　题：high strain rate tension plasticity adiabatic heating strain twinning strain - induced - phase transfor-mation 

摘      要：The effect of strain rate on plasticity has been Investigat-ed for three metallic materials with dynamic tension tech-nique. A phenomenon of high strain induced plasticity -increasing was found for tested materials. The elongation of quenched 30CrMnSiNi2A is 14. 5% under 40 m/s loading rate which is more than two times of the 7 % un-der 0. 5 mm/min. This typic high strain rate induced plasticity - Increasing phenomenon is associated with adiabatic heating, strain twinning and suppression of strain - induced - phase transformation.