Microstructure and mechanical properties of ZM6 magnesium alloy produced by extrusion of machined chips

Authors: Wen, L. H.; Ji, Z. S.; Xin, M. D.

Source: Materials Science and Technology, Volume 25, Number 10, October 2009 , pp. 1222-1226(5)

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Abstract:

The microstructure and room temperature mechanical properties of a ZM6 magnesium alloy produced by extrusion of machined chips were investigated. The tensile properties of the material were evaluated for the magnesium alloy in a series of tempers, including as cast, cast-T6, as extruded, extruded-T4, extruded-T5 and extruded-T6 conditions. Refined grains and broken particles during hot extrusion were attained. All the extruded alloy tempers showed better tensile properties than the cast alloy. The extruded-T4 alloy exhibited the best elongation to failure. The aging treatment resulted in an increase in tensile yield strength and ultimate tensile strength because of the dispersive particles or the fine precipitates. The morphology of the fracture surfaces was examined using scanning electron microscope.

Keywords: MECHANICAL PROPERTIES; EXTRUSION; MICROSTRUCTURE; ZM6 MAGNESIUM ALLOY

Document Type: Research Article

DOI: http://dx.doi.org/10.1179/174328408X382587

Affiliations: School of Materials Science and Engineering, Harbin University of Science and Technology, 4 Linyuan Road, Harbin 150040, China

Publication date: 2009-10-01

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Microstructure and mechanical properties of ZM6 magnesium alloy produced by extrusion of machined chips

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