Mechanical behavior of a cryomilled nanostructured Al-7.5 pct Mg alloy

被引：13

作者：

Han, BQ ^{[1
]}

Matejczyk, D

Zhou, F

Zhang, Z

Bampton, C

Lavernia, EJ

Mohamed, FA

机构：

[1] Univ Calif Davis, Dept Chem Engn & Mat Sci, Davis, CA 95616 USA

[2] Boeing Co, Rocketdyne Div, Canoga Pk, CA 91309 USA

[3] Univ So Calif, Dept Mat Sci, Los Angeles, CA 90089 USA

[4] Univ Calif Irvine, Dept Chem Engn & Mat Sci, Irvine, CA 92697 USA

来源：

METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE | 2004年 / 35A卷 / 03期

关键词：

Material Transaction; Grain Size Distribution; Stress Drop; Warm Rolling; High Yield Stress;

D O I：

10.1007/s11661-004-0019-6

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Mechanical behavior of nanostructured Al-7.5 pct Mg that was processed by cryomilling was analyzed. The mechanical behavior was analyzed by performing tensile tests in liquid nitrogen. An average grain size of approximately 100 nm was measured by X-ray diffraction (XRD) and Transmission electron microscopy (TEM). A high yield stress of 734 MPa, a high ultimate tensile strength (UTS) of 944 MPa, and a low ductility of 2.6 pct were obtained at a temperature of 77.5 K. The results show that there was no evidence of stress drops in the stress-strain curves of the alloy.

引用

页码：947 / 949

页数：3

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