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2006•Materials for Mechanical EngineeringRequires access

Fabrication of Bulk Sub-microstructure 2A12 Aluminum Alloy by Equal Channel Angular Pressing

Sumei Wang, Kangning Sun

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Abstract

Equal channel angular pressing(ECAP) was carried out on 2A12 aluminum alloy at room temperature.The microstructure in different ECAP times was observed by TEM and SEM.The mechanical properties such as tensile strength,proof stress and hardness were also tested.The ECAP successfully refined the grain size to 200nm only after two times of ECAP.Moreover,σ_b,σ_(0.2) and hardness had also improved by 70%,60% and 50% respectively.

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What this paper is about

Equal channel angular pressing(ECAP) was carried out on 2A12 aluminum alloy at room temperature.The microstructure in different ECAP times was observed by TEM and SEM.The mechanical properties such as tensile strength,proof stress and hardness were also tested.The ECAP successfully refined the grain size to 200nm only after two times of ECAP.Moreover,σ_b,σ_(0.2) and hardness had also improved by 70%,60% and 50% respectively.

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Available abstract

Equal channel angular pressing(ECAP) was carried out on 2A12 aluminum alloy at room temperature.The microstructure in different ECAP times was observed by TEM and SEM.The mechanical properties such as tensile strength,proof stress and hardness were also tested.The ECAP successfully refined the grain size to 200nm only after two times of ECAP.Moreover,σ_b,σ_(0.2) and hardness had also improved by 70%,60% and 50% respectively.

Key concepts: Materials science, Pressing, Microstructure, Alloy, Ultimate tensile strength, Aluminium, Metallurgy, Fabrication

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