Effect of Equal Channel Angular Pressing on Microstructure and Properties of AZ61-4Si Magnesium Alloy

Ping Wang; Fu Yin Han; Yong Sheng Wang; Lu Geng; Shao Feng Meng; Wei Liang

doi:10.4028/www.scientific.net/AMR.602-604.602

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 602-604Effect of Equal Channel Angular Pressing on...

Effect of Equal Channel Angular Pressing on Microstructure and Properties of AZ61-4Si Magnesium Alloy

Abstract:

The microstructure and mechanical properties of AZ61-4Si magnesium alloy before and after equal channel angular processing (ECAP) were studied. Results show that the matrix α-Mg and divorced eutectic β-Mg₁₇Al₁₂ are refined and chinese script type Mg₂Si phases are broken to dispersed particles after ECAP. The mechanical properties of the alloy after ECAP are significantly improved. After 4 passes of ECAP, the yield strength is increased from 50MPa to 109 MPa, tensile strength from 129MPa to 237MPa, elongation from 6% to 22%, and hardness from 61.2HBS to71.5HBS. The modification mechanism for microstructure and mechanical properties of the experimental alloy by ECAP was analyzed.

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Periodical:

Advanced Materials Research (Volumes 602-604)

Pages:

602-607

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.602-604.602

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Online since:

December 2012

Authors:

Ping Wang, Fu Yin Han, Yong Sheng Wang, Lu Geng, Shao Feng Meng, Wei Liang

Keywords:

Equal Channel Angular Processing, Magnesium Alloy, Mechanical Property, Mg₂Si Phase, Microstructure

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