Effects of Hot Extrusion Processes on Grain Size of ZK60 Alloy Tubes

Abstract:

Effects of hot extrusion processes on grain size of ZK60 alloy tubes was researched by combining numerical simulation with experimental research. The results show that grain size varies inversely as extrusion ratio and extrusion speed, with extrusion temperature being constant. In order to get the finer and homogeneous microstructure, higher extrusion ratio, higher extrusion speed and lower billet temperature should be chosen in the equipment's rated load. Isothermal extrusion is conducive to tube forming , and the smallest grain size and the better microstructure can be obtained at temperature of 300°C when other deformation conditions are constant.

• Periodical: Advanced Materials Research (Volumes 418-420)
• Pages: 1560-1563
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.418-420.1560
• Online since: December 2011
• Authors: Hai Cheng Liang, Jian Zhong Cui, Zhong Tang Wang
• Keywords: Grain Size, Hot Extrusion Processes, Tube, ZK60 Magnesium Alloy

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