An Investigation on the Microstructure Evolution of Al-5Ti Alloys during an ECAP-CASTEX Process

Ying Long Li; Hua Ding

doi:10.4028/www.scientific.net/AMM.709.394

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vol. 709An Investigation on the Microstructure Evolution...

An Investigation on the Microstructure Evolution of Al-5Ti Alloys during an ECAP-CASTEX Process

Abstract:

Al-5Ti alloy wires with fine grain microstructures were prepared via a continuousequal channel angular pressing process with 1 to 4 passes in a castingextrusion (CASTEX) equipment equipped with a multi-channel die. The evolutionof Al-5Ti alloy microstructure during each forming pass was investigated. Thefracture of TiAl₃ particle phases during deformation, as well astheir interaction with deformation, was also analyzed. The results proved that thecontinuous equal channel angular pressing process can effectively refine Almatrix structure and TiAl₃ particle phases, improve thestrengthening effect of TiAl₃ reinforcing particles on the matrixmetal and produce wires with fine grain microstructure.

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Periodical:

Applied Mechanics and Materials (Volume 709)

Pages:

394-398

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.709.394

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Online since:

December 2014

Authors:

Ying Long Li*, Hua Ding

Keywords:

Al Microstructure Refining, Casting Extrusion Equipment, Equal Channel Angular Pressing, TiAl₃ Particle Phases

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