Effect of Deformation Ratios on Microstructure and Mechanical Properties of ZK60 Magnesium Alloy by Hydrostatic Extruded at Room Temperature

Abstract:

The effect of different hydrostatic extrusion ratios on the microstructure and mechanical properties of the ZK60 magnesium alloys were investigated. The results showed that, the major deformation mechanism of the alloy is twinning at room temperature, which resulted in that the tensile strengthen and hardness of the extruded alloy improved greatly. With deformation ratio increasing, the ultimate tensile strengthen and hardness are linearly increased, with the functions of Y= 4.2X+358.3 and Y=2.3X +73.69, respectively. And the maximum tensile strength and hardness of the extruded alloy are 383 MPa and 87HB, respectively. But the elongation decreases obviously, the minimum decreasing degree is 50%. With the deformation ratio increasing, the tendency of elongation rate increased as an “M” model.

• Periodical: Advanced Materials Research (Volumes 557-559)
• Pages: 13-17
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.557-559.13
• Online since: July 2012
• Authors: Rong Wang, Xiu Rong Zhu, Gang Chen, Jing Jiang Nie, Yong Dong Xu, Jun Wang, Bo Yang
• Keywords: Deformation Twinning, Hydrostatic Extrusion, Mechanical Property, Microstructure, ZK60 Magnesium Alloy

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