Measurement of Hydrogen Content in Al-Mg Alloy Melt

Yao Xiujun  Bian Xiufang  Yin Kuibo

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Measurement of Hydrogen Content in Al-Mg Alloy Melt
Issue 5, Pages: 309-311(2005)
Published： 2005 ，
DOI：

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[1]姚秀军,边秀房,尹奎波.铝镁合金熔体中氢含量的测定[J].特种铸造及有色合金,2005(05):309-311+256.

Yao Xiujun Bian Xiufang Yin Kuibo. Measurement of Hydrogen Content in Al-Mg Alloy Melt. [J]. Special Casting & Nonferrous Alloys (5):309-311(2005)
[1]姚秀军,边秀房,尹奎波.铝镁合金熔体中氢含量的测定[J].特种铸造及有色合金,2005(05):309-311+256. DOI：

Yao Xiujun Bian Xiufang Yin Kuibo. Measurement of Hydrogen Content in Al-Mg Alloy Melt. [J]. Special Casting & Nonferrous Alloys (5):309-311(2005) DOI：

摘要

通过用HYSCANⅡ测量不同过热度和镁含量的铝镁合金熔体中的氢含量

研究了铝镁合金熔体过热度、镁元素和氢含量的关系。试验结果表明

铝镁合金熔体中的氢含量随温度的升高而增加;氢在铝镁合金熔体中的存在形态不同

其可逆性也不同;通过热速处理可大大减少过热铝镁合金熔体中的氢含量;铝镁合金液吸氢的程度主要取决于镁对铝液表面氧化膜性质的改变。

Abstract

Relationship of superheating degree

Mg content and hydrogen content in Al-Mg alloy was examined by measuring hydrogen content in Al-Mg alloy melt with different superheating degree and Mg content through HYSCANII.The results showed that hydrogen content increases with the increase of temperature in Al-Mg alloy melt.Different morphology of hydrogen in the melt can result in different reversibility.The hydrogen content in the melt can be greatly reduced by heat-speed treatment.Changes of Mg on surface oxidized film in aluminum melt are responsible for the hydrogen-absorption of Al-Mg alloy melt.