Metallographic Studies on Deformation Microstructures of ECAE Processed AA 2014 Aluminium Alloy

A. P. Murugesan; Sivaswamy Giribaskar; Gouthama Gouthama

doi:10.4028/www.scientific.net/MSF.702-703.109

Paper Titles

Microstructure Evolution and Mechanical Behaviour of Severe Plastically Deformed Cu
p.93

Evolution of Microstructure and Crystallographic Texture in AA2014 Aluminium Alloy during Equal Channel Angular Extrusion
p.97

On the Bumps and Curves in the Microband Boundaries in a Channel-Die Compressed Goss-Oriented Ni Single Crystal
p.101

Deformation Induced Percolating Porosity In High Pressure Torsioned (HPT) Copper
p.105

Metallographic Studies on Deformation Microstructures of ECAE Processed AA 2014 Aluminium Alloy
p.109

The Role of Processing Routes on the Evolution of Microstructure and Texture Heterogeneity during ECAP of Al-Cu Alloy
p.113

The Role of Structure and Texture Factors in the Ductility and Deformability Improving of Magnesium Alloys Subjected to ECAP
p.119

Texture Evolution of IF-Steel Sheets Processed by Equal-Channel Angular Sheet Extrusion (ECASE)
p.123

Microstructural Investigation of Co-Rolled Nanocrystalline Stainless Steel Sheets
p.127

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Metallographic Studies on Deformation Microstructures of ECAE Processed AA 2014 Aluminium Alloy

Abstract:

Different initial texture of ring rolled AA 2014 alloy was processed to one pass in Equal Channel Angular Extrusion (ECAE) at room temperature. The material flow/deformation characteristics as well as the degree of grain refinement, as a function of different initial grain morphological orientation are studied. Macroscopic and microscopic investigation by Optical Microscope (OM) confirms the significant variation in the shearing characteristics of grains in the billets in each orientations. OM observations also suggested that the severity of deformation was more in middle portions of the extruded billets. TEM observations made on the samples also confirmed the existence of regions which had undergone the different degree of dynamic recovery and recrystallisation after passing through shear deformation zone.