Influence of Compressive Torsion Processing Temperature on Microstructure Refinement and Property of Aluminum Alloy

Shotaro Tahara; Yuji Kume; Makoto Kobashi; Naoyuki Kanetake

doi:10.4028/www.scientific.net/AMR.26-28.133

Paper Titles

Research and Development of Mg-Al-Sr Alloys
p.115

Preparation of Mg-Sr Alloy Using Electrochemical Reduction
p.119

Relationship between Tensile Deformation and Crystallographic Orientation of Grains in the Balanced Al-Mg₂ Si Alloys
p.125

Relationship between Tensile Deformation and Crystallographic Orientation of Grains in Al-Mg-Si Alloys with Cu
p.129

Influence of Compressive Torsion Processing Temperature on Microstructure Refinement and Property of Aluminum Alloy
p.133

Heat Resistance of Mg-Nd Based Casting Alloys Containing Gadolinium and Yttrium
p.137

Effect of Ca and Sr Content on Elevated Temperatures Mechanical Properties of a Cast AZ91 Magnesium Alloy
p.141

Mechanical Properties of Twin Roll Cast AZ91 Magnesium Alloy at Room Temperature
p.145

Influence of Initial Texture on Twin Formation and Plastic Deformation of Rolled AZ31 Mg Alloy
p.149

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Influence of Compressive Torsion Processing Temperature on Microstructure Refinement and Property of Aluminum Alloy

Abstract:

A compressive torsion processing (CTP) was applied to hypereutectic Al-Si alloy in order to raise ductility and formability by microstructure refinement of the alloy. The CTP is a unique severe plastic deformation process and it can easily apply large strain to a work piece without change in shape. In the present work, influence of compressive torsion processing temperature on microstructure refinement and tensile property of hypereutectic Al-Si alloy is dealt with. When the CTP was applied on the Al-Si alloy, primary and eutectic Si particles were refined more effectively at lower processing temperature. Total tensile elongation of CTPed alloy was four times as large as that of non CTPed one. Distribution of the total elongation was quite uniform in the whole CTPed specimen.