The effect of cumulative large plastic strain on the structure and properties of a Cu-Zn alloy

被引：54

作者：

Liu, ZY ^{[1
]}

Liang, GX ^{[1
]}

Wang, ED ^{[1
]}

Wang, ZR ^{[1
]}

机构：

[1] Harbin Inst Technol, Sch Mat Sci & Engn, Harbin 150001, Peoples R China

来源：

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 1998年 / 242卷 / 1-2期

关键词：

large strain; equal-channel angular pressing; equivalent true strain; ultra-fine grain;

D O I：

10.1016/S0921-5093(97)00467-X

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

A Cu-38%Zn alloy has been deformed to large strain by a new method, and the change of structure has been investigated. The method is called equal-channel angular pressing (ECAP). After deformation, the microstructure has been changed greatly, while the macrostructure, such as the size and distribution of the second phase and the original grain boundaries have been changed a little. As the equivalent true strain is increased to 10, the average crystallite size is decreased to 0.4 mu m according to transmission electron microscopy (TEM) observation and X-ray diffraction results. At the same time, the Vickers hardness is increased from 71 to 220. (C) 1998 Elsevier Science S.A.

引用

页码：137 / 140

页数：4

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