Yield stress in semi-solid alloys - the dependency on time and deformation history

被引：1
|
作者：
Harboe, S. [1 ]
Modigell, M. [1 ]
机构：
[1] Rhein Westfal TH Aachen, Inst Mech Proc Engn, Aachener Verfahrenstech, D-52056 Aachen, Germany
来源：
CURRENT STATE-OF-THE-ART ON MATERIAL FORMING: NUMERICAL AND EXPERIMENTAL APPROACHES AT DIFFERENT LENGTH-SCALES, PTS 1-3 | 2013年 / 554-557卷
关键词：
Thixo-forming; rheology; yield stress; experimental investigations; METAL-MATRIX COMPOSITES;
D O I：
10.4028/www.scientific.net/KEM.554-557.523
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The yield stress and shear moduli in semi-solid A356 aluminium alloy have been measured by means of shear ramp and oscillation experiments. The influence of duration of resting time and shear deformation history on the rigidity and yield stress has been determined. The experimental results from the different applied measurement techniques have been evaluated and compared. Due to the density difference in the particle- and liquid phase of the A356 alloy suspension, segregation of particles occurs during the resting time of the experiments. The influence of particle segregation during the yield stress and rigidity measurements has been discussed.
引用
收藏
页码：523 / 535
页数：13
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