除气方法对AZ91镁合金氢含量及力学性能的影响

贾征; 喻兵; 王芷茁; 于永治; 韩旭; 闫丽湲; 宋婧怡; 柳鑫; 潘鹏

doi:10.15980/j.tzzz.2021.08.011

研究·合金性能 | 浏览量 : 0 下载量: 15 CSCD: 0

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除气方法对AZ91镁合金氢含量及力学性能的影响
Effects of Different Degassing Methods on Hydrogen Content and Mechanical Properties of AZ91 Magnesium Alloy
2021年41卷第8期页码：982-987
纸质出版日期： 2021 ，
DOI： 10.15980/j.tzzz.2021.08.011

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贾征, 喻兵, 王芷茁, 等. 除气方法对AZ91镁合金氢含量及力学性能的影响[J]. 特种铸造及有色合金杂志, 2021,41(8):982-987.

Jia Zheng, Yu Bing, Wang Zhizhuo, et al. Effects of Different Degassing Methods on Hydrogen Content and Mechanical Properties of AZ91 Magnesium Alloy[J]. Special Casting & Nonferrous Alloys, 2021,41(8):982-987.
贾征, 喻兵, 王芷茁, 等. 除气方法对AZ91镁合金氢含量及力学性能的影响[J]. 特种铸造及有色合金杂志, 2021,41(8):982-987. DOI： 10.15980/j.tzzz.2021.08.011.

Jia Zheng, Yu Bing, Wang Zhizhuo, et al. Effects of Different Degassing Methods on Hydrogen Content and Mechanical Properties of AZ91 Magnesium Alloy[J]. Special Casting & Nonferrous Alloys, 2021,41(8):982-987. DOI： 10.15980/j.tzzz.2021.08.011.

摘要

研究了C

除气、超声除气、熔剂除气及氩气除气4种方法对AZ91镁合金氢含量及力学性能的影响。结果表明

氩气除气效果最佳

每100 g镁中氢含量可减少到7.3 cm

。对应的抗拉强度为200 MPa

屈服强度为128 MPa

伸长率为5.2%。研究了氢含量与合金力学性能的相关性

结果表明

每100 g镁中氢含量低于11 cm

时

进一步除氢对AZ91镁合金力学性能的影响不明显。

Abstract

The effects of C

ultrasonic

flux and argon degassing on hydrogen content and mechanical properties of AZ91 magnesium alloy were investigated. The results show that argon has the satisfeid hydrogen removal effect

where the hydrogen content can be decreased to 7.3 cm

/100 g. The corresponding tensile strength

yield strength and elongation reach 200 MPa

128 MPa and 5.2%

respectively

at room temperature. Meanwhile

the effects of hydrogen content on the mechanical properties of AZ91 magnesium alloy were investigated. When the hydrogen content in AZ91 alloy is less than 11 cm

/100 g

further degassing of hydrogen content has little effect on mechanical properties.