In-situ Observation and Anisotropy of Free Surface Roughening for Polycrystalline Metals

被引：2

作者：

Furushima, Tsuyoshi ^{[1
]}

Masuda, Tetsuro ^{[1
]}

Manabe, Ken-ichi ^{[1
]}

机构：

[1] Tokyo Metropolitan Univ, Dept Mech Engn, Grad Sch Sci & Engn, Hachioji, Tokyo 1920397, Japan

来源：

ADVANCES IN MATERIALS PROCESSING IX | 2010年 / 443卷

关键词：

Free surface roughening; Polycrystalline metal; In-situ observation; Uniaxial tension; Anisotropy; laser microscope;

D O I：

10.4028/www.scientific.net/KEM.443.450

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

To understand the free surface roughening phenomena of polycrystalline metals, the surface roughening behaviors of three kinds of metal sheets were investigated under uniaxial tension. The materials used were AZ31 magnesium alloy, SPFC 590Y steel, and A5052-O aluminum alloy. In the in-situ observation of surface roughening for AZ31 magnesium alloy, it seemed that the surface of each grain roughened independently and the roughness increases with increasing plastic strain. In contrast to A5052-O and SPFC, the anisotropy of free surface roughening was observed for AZ31 magnesium alloy. Compared with planar anisotropy Delta r, the microscopic anisotropy of surface roughening is not related to Delta r. In AZ31 magnesium alloy, the anisotropy of surface roughening arises and, instead of the r-value, another parameter is needed to evaluate the anisotropy of free surface roughening.

引用

页码：450 / 455

页数：6

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