Influence of the Alloying Element Cu on the Hydrogen Content  in Superheated  Aluminum Melt

Li Xizhen

doi:10.15980/j.tzzz.2000.03.008

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Influence of the Alloying Element Cu on the Hydrogen Content in Superheated Aluminum Melt
Issue 3, Pages: 19-20(2000)
Published： 2000 ，
DOI： 10.15980/j.tzzz.2000.03.008

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[1]李喜珍,边秀房,刘相法,刘志勇.合金元素Cu对过热铝熔体中氢含量的影响[J].特种铸造及有色合金,2000(03):19-20+2.

Li Xizhen. Influence of the Alloying Element Cu on the Hydrogen Content in Superheated Aluminum Melt. [J]. Special Casting & Nonferrous Alloys (3):19-20(2000)
[1]李喜珍,边秀房,刘相法,刘志勇.合金元素Cu对过热铝熔体中氢含量的影响[J].特种铸造及有色合金,2000(03):19-20+2. DOI： 10.15980/j.tzzz.2000.03.008.

Li Xizhen. Influence of the Alloying Element Cu on the Hydrogen Content in Superheated Aluminum Melt. [J]. Special Casting & Nonferrous Alloys (3):19-20(2000) DOI： 10.15980/j.tzzz.2000.03.008.

摘要

Al Cu合金熔体中的氢含量在 780℃以下保持恒定

此后氢含量随温度升高急剧增加

分析表明合金元素Cu在780℃以下对过热铝熔体中的氢含量影响起主导作用

即在此温度以下铝液吸氢程度取决于铝液表面氧化膜的性质。试验研究表明在同一过热度下

铝熔体中氢含量随合金元素Cu加入量的增多而下降。

Abstract

Hydrogen content in molten Al-Cu alloy keeps constant below 780℃

but it increase dramatically above this temperature. It is indicated that the alloying element Cu plays critical role for the hydrogen content in superheated Al-Cu melt below 780℃

namely below 780℃

the degree of hydrogen pick up for liquid Al is determined by the feature of oxide film on Al melt surface. The results showed that hydrogen content in molten Al decrease with alloying element Cu addition increasing at the same superheated rate.