Influence of heat treatment on the microstructural evolution of Al-3 wt.% Cu during high-pressure torsion

被引：17

作者：

Hohenwarter, A. ^{[1
]}

Faller, M. ^{[2
]}

Rashkova, B. ^{[3
]}

Pippan, R. ^{[2
]}

机构：

[1] Univ Leoben, Dept Mat Phys, A-8700 Leoben, Austria

[2] Austrian Acad Sci, Erich Schmid Inst Mat Sci, A-8700 Leoben, Austria

[3] Univ Leoben, Dept Met & Mat Testing, A-8700 Leoben, Austria

来源：

PHILOSOPHICAL MAGAZINE LETTERS | 2014年 / 94卷 / 06期

基金：

奥地利科学基金会;

关键词：

microstructure; aluminium alloys; high-pressure torsion (HPT); severe plastic deformation (SPD); SEVERE PLASTIC-DEFORMATION; ALLOY; REFINEMENT; ALUMINUM;

D O I：

10.1080/09500839.2014.907508

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Solution-treated, peak-aged and overaged samples of the model alloy Al-3 wt.% Cu, obtained by selective heat treatments of the pre-material, have been subjected to high-pressure torsion at room temperature and at 200 degrees C. The mechanical behaviour of the samples was investigated with torque measurements during deformation and microhardness measurements after deformation. Irrespective of the initial material condition, in the saturation regime a comparable equilibrium microstructure was found consisting of ultrafine aluminium grains stabilized by precipitates formed at grain boundaries.

引用

页码：342 / 350

页数：9

共 19 条

[1] Effect of oxide particles on the stabilization and final microstructure in aluminium [J].