Research on Temperature Change and Microstructure Evolution of Bore in Steel Target Penetrated by Copper Jets

摘要：

Copper fragments are found to adhere on penetration channel wall after copper jets penetrate steel target, and the research on it is helpful to know microstructure evolution of jets in the process of penetration and cooling time. This paper is based on the observation of bore in steel target penetrated by copper jets, and uses numerical simulation to study the process of copper jets penetration, then the change of temperature and grain size of jets adhered on penetration channel wall can be gotten, and the results agree with the observation of penetration channel wall taken by SEM. From the observations of copper and steel, we can get the conclusion that copper jets are not melted but have dynamic recrystallization in the process of penetration, then copper grain size increases obviously in cooling time, and twins are formed at the same time.

作者: Hao Chen Gang Tao

作者单位: Power of Engineering,NJUST,Nanjing,210094,China

会议类型: 国际会议

会议名称: 5th International Conference on Nanomaterials by Severe Plastic Deformation(第五届剧烈塑性变形纳米材料国际会议)

会议地点: 南京

会议语种:英文

页码: 641-646

在线出版日期: 2011-03-01（万方平台首次上网日期，不代表论文的发表时间）