Influence of severe plastic deformation on the PLC effect and mechanical properties in Al 5XXX alloy

被引：8

作者：

Zdunek, Joanna ^{[1
]}

Widlicki, Pawel ^{[1
]}

Garbacz, Halina ^{[1
]}

Mizera, Jaroslaw ^{[1
]}

Kurzydlowski, Krzysztof J. ^{[1
]}

机构：

[1] Warsaw Univ Technol, Mat Sci & Engn Fac, PL-02507 Warsaw, Poland

来源：

HIGH PRESSURE TECHNOLOGY OF NANOMATERIALS | 2006年 / 114卷

关键词：

hydrostatic extrusion; instability of plastic deformation; PLC effect; aluminium alloys;

D O I：

10.4028/www.scientific.net/SSP.114.171

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

In this work, Al-Mg-Mn-Si alloy (5483) in the as-received and severe plastically deformed states was used. Plastic deformation was carried out by hydrostatic extrusion, and three different true strain values were applied 1.4, 2.8 and 3.8. All specimens were subjected to tensile tests and microhardness measurements. The investigated material revealed an instability during plastic deformation in the form of serration on the stress-strain curves, the so called Portevin-Le Chatelier effect It was shown that grain size reduction effected the character of the instability.

引用

页码：171 / 176

页数：6

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