Effect of High-Pressure Solution Temperature on Microstructure and Mechanical Properties of AZ61 Magnesium Alloy

Yu Shan Li

doi:10.4028/www.scientific.net/AMR.580.505

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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 580Effect of High-Pressure Solution Temperature on...

Effect of High-Pressure Solution Temperature on Microstructure and Mechanical Properties of AZ61 Magnesium Alloy

Abstract:

As-cast AZ61 magnesium alloy was treated by solution under a high-pressure of 3 Gpa at different temperatures, atmospheric temperature, 200, 400, 600, 800 and 1000 °C. The microstructure of the products was observed by optical microscope. The mechanical properties of the products were investigated by brinell hardness tester and tensile testing. The results show that increasing solution temperature promotes the dissolution into α-Mg matrix of β-Mg17Al12 phase of AZ61 alloy, especially for over 400 °C. With increasing solution temperature, the tensile strength and elongation percentage of AZ61 increase gradually, but the hardness decreases.