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Dynamic precipitation behavior and mechanical property of an Mg94Y4Zn2 alloy prepared by multi-pass successive equal channel angular pressing

Research paper by Huan Liu, Jia Ju, Fumin Lu, Jingli Yan, Jing Bai, Jinghua Jiang, Aibin Ma

Indexed on: 05 Dec '16Published on: 16 Nov '16Published in: Materials Science and Engineering: A



Abstract

After sixteen successive passes of equal channel angular pressing (ECAP), kinked 18R-LPSO phase and refined DRX grains were developed in Mg94Y4Zn2 alloy. Simultaneously, nano-sized 14H micro cells and Mg24Y5 particles were dynamically precipitated. Owing to the above microstructure characteristics, the 16p-ECAP alloy exhibited outstanding mechanical property with compressive strength and fracture strain of 611 MPa and 20.1%, respectively.

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