Effects of Different Degassing Methods on Hydrogen Content and Mechanical Properties of 2024 Aluminum Alloy

Jia Zheng; Yu Bing; Song Jingyi; Han Xu; Yan Liyuan; Hao Mingzhu; Pan Peng; Fu Li

doi:10.15980/j.tzzz.2021.07.009

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Effects of Different Degassing Methods on Hydrogen Content and Mechanical Properties of 2024 Aluminum Alloy
Vol. 41, Issue 7, Pages: 837-841(2021)
Published： 2021 ，
DOI： 10.15980/j.tzzz.2021.07.009

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Jia Zheng, Yu Bing, Song Jingyi, et al. Effects of Different Degassing Methods on Hydrogen Content and Mechanical Properties of 2024 Aluminum Alloy. [J]. Special Casting & Nonferrous Alloys 41(7):837-841(2021)
DOI：

Jia Zheng, Yu Bing, Song Jingyi, et al. Effects of Different Degassing Methods on Hydrogen Content and Mechanical Properties of 2024 Aluminum Alloy. [J]. Special Casting & Nonferrous Alloys 41(7):837-841(2021) DOI： 10.15980/j.tzzz.2021.07.009.

摘要

研究了C

除气、超声除气、C

-超声联合除气、氩气除气对2024铝合金氢含量及力学性能的影响。发现C

-超声联合除气后合金氢含量最低

对应的力学性能最高;研究了2024铝合金氢含量与力学性能的相关性。结果表明

铸锭抗拉强度随氢含量降低而升高

当每100 g铝的氢含量小于0.12 cm

时

屈服强度随氢含量的降低升高不显著。

Abstract

Effects of four methods including C

degassing

ultrasonic degassing

/ultrasonic combination degassing and Ar degassing on hydrogen content and mechanical properties of 2024 alloy were investigated. The results indicate that after C

-ultrasonic combination degassing

the hydrogen content reaches the minimum

corresponding to the optimal properties. The correlation of hydrogen content with mechanical properties of 2024 alloy was investigated. The result reveal that tensile properties and elongation at room temperature are continuously increased with the decrease of hydrogen content. When the hydrogen content is less than 0.12 cm

/100 g Al

the yield strength has no significant increase with the decrease of hydrogen content.