Controlled grain size distribution and refinement of an EN AW-6082 aluminium alloy

被引：2

作者：

Lampke, Thomas ^{[1
]}

Dietrich, Dagmar ^{[1
]}

Nickel, Daniela ^{[1
]}

Bergmann, Markus ^{[2
]}

Zachaeus, Rene ^{[3
]}

Neugebauer, Reimund ^{[2
,3
]}

机构：

[1] Tech Univ Chemnitz, Inst Mat Sci & Engn, D-09107 Chemnitz, Germany

[2] Tech Univ Chemnitz, Inst Machine Tools & Prod Proc, D-09107 Chemnitz, Germany

[3] Fraunhofer Inst Machine Tools & Forming Technol I, Chemnitz, Germany

来源：

INTERNATIONAL JOURNAL OF MATERIALS RESEARCH | 2011年 / 102卷 / 08期

关键词：

Severe plastic deformation; Incremental forming; Graded grain size; Hardening; SEVERE PLASTIC-DEFORMATION; IMPROVEMENT;

D O I：

10.3139/146.110546

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

An EN AW-6082 aluminium alloy was subjected to incremental deformation by a new process named gradation rolling. The process has been used to generate a grain size distribution in a rod-shaped billet. A grain size gradient ranging from coarse-grained in the billet core to ultrafine-grained at the surface of the billet can be obtained. The grain size distribution has been confirmed by electron back-scatter diffraction showing the grain refinement related to the true strain. The fibre texture of the base material has been transformed to a rolling texture in the surface region. This results in strain-hardening and grain-boundary strengthening in the surface region (130 HV0.5) as compared to the unchanged core material (110 HV0.5).

引用

页码：977 / 981

页数：5

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