Effect of Composite Energy-Field on Microstructure and Properties of AZ31B Magnesium Roll-Casting Alloy Sheet

Abstract:

With composite energy-field of ultrasonic field and electromagnetic field introduced into the roll-casting process，AZ31B magnesium alloy has been acquired successfully，during this process，the effect of composite field on structure and properties of AZ31B magnesium roll-casting alloy are studied. The result shows that the composite field can decrease the grain size greatly from 60-80μm to 12-18μm compared with the conventional roll-casting(without out-field), improving the tensile strength and yield strength by 13% and 35% respectively and the elongation increased by 82.2%（average value）.Meanwhile，the microstructure of magnesium alloy obtained with the composite field are more uniform after annealing，mechanical properties are improved greatly as well.

• Periodical: Materials Science Forum (Volume 686)
• Pages: 46-52
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.686.46
• Online since: June 2011
• Authors: Da Heng Mao, Guan Zhong Zhao, Jian Ping Li, Jian Bing Hu, Sheng Fang Zhang
• Keywords: AZ31B Magnesium Alloy, Composite Field of Electromagnetic Field, Composite Field of Ultrasonic Field, Microstructure, Roll-Casting

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