材料工程Issue(12)：24-30,7.DOI:10.11868/j.issn.1001-4381.2015.12.005
AerMet100超高强度钢的动态力学性能研究
Dynamic Mechanical Properties of AerMet100 Ultra-high Strength Steel
张胜男 1程兴旺1
作者信息
- 1. 北京理工大学 材料学院 冲击环境材料技术国家级重点实验室，北京 100081
- 折叠
摘要
Abstract
The AerMet100 ultra-high steel was cryogenic treated after quenched and then was tempered under different temperatures,the OM,SEM and TEM techniques were used to observe the micro-structure after heat treatment.The effect of different heat treatments on the dynamic mechanical properties was investigated using the split Hopkinson pressure bar.The results indicate that the con-tent of residual austenite is reduced,the dynamic plasticity is enhanced and the comprehensive proper-ties are improved after cryogenic treatment.Under high strain rate (1000-4200s-1 ),compared with the quasi static,material shows strain rate hardening effect obviously.The dynamic compression strength increases initially and then decreases with increasing tempering temperature,the peak value of about 2800MPa appears when the tempering temperature is 482℃.The material fracture form is the shear fracture when the steel is under the dynamic loading.关键词
AerMet100 超高强度钢/动态力学性能/深冷处理/绝热剪切带Key words
AerMet100 ultra-high strength steel/dynamic mechanical property/cryogenic treatment/ad-iabatic sh-ear band分类
矿业与冶金引用本文复制引用
张胜男,程兴旺..AerMet100超高强度钢的动态力学性能研究[J].材料工程,2015,(12):24-30,7.
