Effect of Argon Dehydrogenation on the Mechanical Properties of AZ91 Magnesium Alloy Scrap
Author of the article:JIAO Wancai;JIA Zheng;SONG Tingting;WANG Tong
Author's Workplace：Department of Welding Engineering,Shenyang University,Shenyang 110044,China;Key Laboratory of Electromagnetic Processing of Materials,Ministry of Education,Northeastern University,Shenyang 110819,China
Key Words：AZ91 magnesium alloy scrap hydrogen content mechanical properties MgO inclusions
Abstract：
The effects of argon degassing on the hydrogen content and mechanical properties of AZ91 magnesium alloy waste were investigated.The results show that the hydrogen content of AZ91 magnesium alloy ingots could be reduced from 18.4 cm3/100 g to 10.6 cm3/100 g,and the degassing efficiency can reach 42.4%.Tensile strength,yield strength and elongation by degassing increase by 21.6%,3.6%and 56.5%,respectively.MgO inclusions in waste materials are the main reasons for reduction the mechanical properties.
