Study of deformed microstructures near the impact crater in pure copper targets

被引：12

作者：

Li, GA ^{[1
]}

Zhen, L ^{[1
]}

Li, HT ^{[1
]}

Tan, X ^{[1
]}

机构：

[1] Harbin Inst Technol, Dept Mat Sci, Harbin 150001, Peoples R China

来源：

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2004年 / 384卷 / 1-2期

关键词：

high velocity impact; deformed microstructure; microbands;

D O I：

10.1016/j.msea.2004.05.029

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Annealed and cold rolled pure copper targets were impacted by 4 turn diameter GCrl5 steel ball with a speed of 1.5 km/s. The microstructure near the crater and the influence of cold rolling on the homogeneity of deformation under impact were studied. The results show that the cold rolling deformation improves the homogeneity of bulk deformation near the crater. Abundant microbands (MBs) are observed near craters of the two types of target by transmission electron microscope (TEM), and no twins are found. Linear features are observed in grains 2-3 mm away from the crater. TEM observations show that these linear features are very fine microbands. (C) 2004 Elsevier B.V. All rights reserved.

引用

页码：12 / 18

页数：7

共 22 条

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