Effect of Ultrasonic Treatment on Hydrogen Content of Magnesium Alloy Melt and Mechanical Properties
Author of the article:LI Zhanzhi;JIA Zheng;TU Jibing;LE Qichi;YU Yuxiang;WANG Wei;GAO Ailin;CUI Jianzhong
Author's Workplace：Giant Light Metal Technology (Kunshan) Co., Ltd., Kunshan 215300,China;Department of Welding Engineering of School of Mechanical Engineering, Shenyang University, Shenyang 110044,China;Key Laboratory of Electromagnetic Processing of Materials,Ministry of Education,Northeastern University, Shenyang 110819,China
Key Words：ultrasonic field magnesium alloys density of ingot hydrogen content
Abstract：
The effects of ultrasonic on removing hydrogen in three kinds of magnesium alloys including Mg-3.03Ca,Mg-6.04Zn-1.17Ca and AZ91 were investigated.The results show that the hydrogen in the melt can be removed and the microstructure can be refined by ultrasonic treatment.For Mg-3.03Ca,Mg-6.04Zn-1.17Ca and AZ91 magnesium alloys,the hydrogen removal rates are 53.8%,67.5%and 50.5%,respectively.After hydrogen removal,the minimum hydrogen content of AZ91 magnesium alloy can reach 9.6 cm3/100 g.At room temperature,the tensile strength,yield strength and elongation can reach Rm=194 MPa,R0.2=133 MPa and A=4.8%,respectively.The tensile strength and elongation increase by 27.6 and 4.4%,respectively,while the yield strength does not change significantly.
