2007Cailiao rechuli xuebaoRequires access

Effect of heat treatment on microstructure and tensile properties of 319 aluminum alloy

Kang Jin-wu

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Abstract

The influence of T6 heat treatment with residual heat of casting on microstructure and mechanical property of Al-Si-Cu alloy castings was investigated.It is found that more amount of Cu is solutioned in Al matrix in a shorter time using the new processing.The dispersed Si particles can be observed and their coarsening during the solution treatment can be controlled effectively.In the first 4 hours of solution procedure,the Si particles are refined continually.The tensile strength of the alloy treated by present technology increases by about 15% compared with that of the traditionally T6 treated alloy.

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The influence of T6 heat treatment with residual heat of casting on microstructure and mechanical property of Al-Si-Cu alloy castings was investigated.It is found that more amount of Cu is solutioned in Al matrix in a shorter time using the new processing.The dispersed Si particles can be observed and their coarsening during the solution treatment can be controlled effectively.In the first 4 hours of solution procedure,the Si particles are refined continually.The tensile strength of the alloy treated by present technology increases by about 15% compared with that of the traditionally T6 treated alloy.

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Available abstract

The influence of T6 heat treatment with residual heat of casting on microstructure and mechanical property of Al-Si-Cu alloy castings was investigated.It is found that more amount of Cu is solutioned in Al matrix in a shorter time using the new processing.The dispersed Si particles can be observed and their coarsening during the solution treatment can be controlled effectively.In the first 4 hours of solution procedure,the Si particles are refined continually.The tensile strength of the alloy treated by present technology increases by about 15% compared with that of the traditionally T6 treated alloy.

Key concepts: Alloy, Materials science, Microstructure, Ultimate tensile strength, Casting, Metallurgy, Aluminium, Alonizing

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