当前位置：首页 > 过刊浏览->2019年40卷第6期
超声处理对镁合金熔体氢含量及力学性能的影响
Effect of Ultrasonic Treatment on Hydrogen Content of Magnesium Alloy Melt and Mechanical Properties
浏览(1711) 下载(6)
- DOI:
- 作者:
- 李展志 贾征 涂季冰 乐启炽 俞玉祥 汪威 高爱林 崔建忠
LI Zhanzhi;JIA Zheng;TU Jibing;LE Qichi;YU Yuxiang;WANG Wei;GAO Ailin;CUI Jianzhong
- 作者单位:
- 捷安特轻合金科技（昆山）股份有限公司 沈阳大学机械工程学院焊接工程系 东北大学材料电磁过程研究教育部重点实验室
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
- 关键词:
- 超声场 镁合金 铸锭密度 氢含量
ultrasonic field magnesium alloys density of ingot hydrogen content
- 摘要:
- 研究了超声处理对Mg-3.03Ca、Mg-6.04Zn-1.17Ca和AZ91镁合金3种不同熔体除氢的影响,分别采用密度法和固态测氢法表征除氢效果。结果表明,应用超声处理可显著地去除熔体中的氢,并细化显微组织。对于Mg-3.03Ca、Mg-6.04Zn-1.17Ca和AZ91镁合金,除氢率分别可达53.8%、67.5%和50.5%。AZ91镁合金除氢后,最低氢含量可达9.6 cm3/100 g,室温抗拉强度、屈服强度和伸长率可分别达Rm=194 MPa、R0.2=133 MPa和A=4.8%,抗拉强度和伸长率比未处理时分别提高了27.6和4.4%,而屈服强度变化不显著。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.