| Kinetics of absorbing hydrogen of Al melt |
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| 作者姓名： | 李培杰 曾大本 贾均 李庆春 |
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| 作者单位： | LI Pei jie 1，2，ZENG Da ben 1，JIA Jun 2，LI Qing chun 2 1.Department of Mechanical Engineering，Tsinghua University，Beijing 100084，P.R.China; 2.School of Materials Science and Engineering，Harbin Institute of Technology，Harbin 150001 |
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| 摘 要： | 1 ＩＮＴＲＯＤＵＣＴＩＯＮＨｙｄｒｏｇｅｎｉｎＡｌｍｅｌｔｍａｉｎｌｙｃｏｍｅｓｆｒｏｍｗａｔｅｒｖａｐｏｒ1] .ＩｔｉｓｔｈｅｗａｔｅｒｖａｐｏｒａｂｓｏｒｂｅｄｂｅｔｗｅｅｎｔｈｅｏｘｉｄｅｌａｙｅｒａｎｄｔｈｅＡｌｍｅｌｔ,ｂｕｔｎｏｔｔｈｅｇａｓｅｏｕｓｗａ ｔｅｒｖａｐｏｒｔｈａｔｒｅａｃｔｓｗｉｔｈｔｈｅｌｉｑｕｉｄｍｅｔａｌ,ｂｅｃａｕｓｅｔｈｅｒｅｉｓａｌｗａｙｓａｔｈｉｎｏｘｉｄｅｌａｙｅｒｏｎｔｈｅｓｕｒｆａｃｅｏｆｔｈｅＡｌｍｅｌｔ.Ｆｏｌｌｏｗｉｎｇｉｓｔｈｅｉｒｃｈｅｍｉｃ…
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Kinetics of absorbing hydrogen of Al melt |
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| LI Pei jie ,ZENG Da ben ,JIA Jun ,LI Qing chun.Kinetics of absorbing hydrogen of Al melt[J].Transactions of Nonferrous Metals Society of China,2000(2). |
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| Authors: | LI Pei jie ZENG Da ben JIA Jun LI Qing chun |
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| Affiliation: | LI Pei jie 1,2,ZENG Da ben 1,JIA Jun 2,LI Qing chun 2 1.Department of Mechanical Engineering,Tsinghua University,Beijing 100084,P.R.China, 2.School of Materials Science and Engineering,Harbin Institute of Technology,Harbin 150001 |
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| Abstract: | The kinetics process of absorbing hydrogen of Al melt was analyzed and it was considered that the concentration of hydrogen in Al melt was determined by the concentration of water vapor in the interface of the oxide layer and Al melt. The change of the alloying composition will result in the change of compactability of oxide layer and affect the process of the water vapor gas penetrating the oxide layer and entering the interface of Al melt and oxide layer. Based on the above analysis, the kinetics equation of Al melt absorbing hydrogen was established, and compared with the test result. The results of calculation were elementally coincident with the test result. The curve of hydrogen concentration varying with reaction time in Al melt can be obtained from this equation. And scientific basis could be provided to select melting technology parameter properly and control the concentration of hydrogen in Al melt. |
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| Keywords: | Al melt absorbing hydrogen kinetics |
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