Equal Channel Angular Pressing of Aluminum-Alumina In Situ Metal Matrix Composite

C.N. Athreya; V.P. Mahesh; M. Brahmakumar; T.P.D. Rajan; K. Narayan Prabhu; B.C. Pai; R.K. Gupta; P. Ramkumar

doi:10.4028/www.scientific.net/MSF.710.247

Paper Titles

High Strain Rate Superplasticity in an Al-Mg-Sc-Zr Alloy Produced by Equal Channel Angular Pressing and Subsequent Cold and Warm Rolling
p.223

Structural and Mechanical Behaviour of Severe Plastically Deformed OFE Copper Processed by Constrained Groove Pressing Technique
p.229

Friction Stir Processed Rare Earth Containing Magnesium Alloy for High Temperature Application
p.235

Strengthening Behavior of Bulk Ultra Fine Grained Aluminum Alloys
p.241

Equal Channel Angular Pressing of Aluminum-Alumina In Situ Metal Matrix Composite
p.247

Microstructural and Mechanical Characterization of Friction Stir Processed 5086 Aluminum Alloy
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Surface Modification of Steels Using Friction Stir Surfacing
p.258

Bioactive Grain Refined Magnesium by Friction Stir Processing
p.264

Grain Refinement in OFHC Cu Subjected to Repetitive Upsetting Extrusion (RUE) Process
p.270

HomeMaterials Science ForumMaterials Science Forum Vol. 710Equal Channel Angular Pressing of Aluminum-Alumina...

Equal Channel Angular Pressing of Aluminum-Alumina In Situ Metal Matrix Composite

Abstract:

The present investigation is on synthesis of in situ Al-alumina composite and to evaluate the effect of equal channel angular pressing on the refinement of the grain structure and enhancement in the hardness and the strength. The billets pressed in as cast condition has shown cracks during first pass. The billets pressed immediately after solution treatment for one pass and followed by ageing treatment immediately after pressing exhibited very high hardness of 125BHN against 95 BHN to that of the T6 condition of 6061 aluminium alloy. The microstructural refinement from 35 µm to 11 µm is obtained in annealed and ECAP 2 pass condition.