2010•Rejiagong gongyiRequires access

Microstructure Evolution of Magnesium Alloy by Repeated Extrusion

Ting Jiang, Xuefeng Guo, Ma Guang, Xiaohua Yang

Abstract

ZK60 magnesium alloy was prepared by reciprocating extrusion with different passes.The microstructure evolution with reciprocating extrusion passes was researched.The results show that,for 4-extruded ZK60-CT magnesium alloy,grains are about 6 μm equiaxed grain,precipitates are fine and uniform.The microstructure of 1-extruded ZK60-CT is not stable,reciprocating extrusion is advantageous to improve the microstructure stability of ZK60 magnesium alloy.The refining mechanism of repeated extruded ZK60-CT magnesium alloy is DRX refining and particle refining.

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Key concepts: Microstructure, Extrusion, Materials science, Equiaxed crystals, Metallurgy, Reciprocating motion, Magnesium alloy, Alloy