Title of article
Consolidation of partially amorphous aluminium-alloy powders by severe plastic deformation
Author/Authors
Botta Filho، نويسنده , , W.J. and Fogagnolo، نويسنده , , J.B. and Rodrigues، نويسنده , , C.A.D. and Kiminami، نويسنده , , C.S. and Bolfarini، نويسنده , , C. and Yavari، نويسنده , , A.R.، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2004
Pages
6
From page
936
To page
941
Abstract
The microstructures and properties of Al-based alloys produced by severe plastic deformation under high pressure torsion straining were compared with alloys of the same compositions consolidated by hot extrusion and spray-forming processing. Partially amorphous alloy powders of two systems were studied; Al90Fe7Z3 alloy powders were prepared by high-energy ball milling and Al84Y3Ni8Co4Zr1+SiC composite powder was prepared by gas atomisation. The alloy powders have been cold consolidated by high-pressure torsion straining under a stress of 5 GPa resulting in refined and uniform microstructures, with hardness values well above the measured values for the hot-extruded Al90Fe7Z3 alloy and for the spray-deposited Al84Y3Ni8Co4Zr1+SiC composite alloy.
Keywords
Composite alloys , Aluminium alloys , Severe plastic deformation
Journal title
MATERIALS SCIENCE & ENGINEERING: A
Serial Year
2004
Journal title
MATERIALS SCIENCE & ENGINEERING: A
Record number
2146597
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