Proceedings of the Korean Powder Metallurgy Institute Conference (한국분말야금학회:학술대회논문집)
- 2006.09b
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- Pages.716-717
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- 2006
Degassing of Aluminum and Aluminum Alloy Powders as Studied by Gas Chromatography
- Watanabe, Ryuzo (Now at Tohoku Polytechnic College) ;
- Choi, Duk-Sun (Now at Dong Sung Precision Co., LTD.) ;
- Kawasaki, Akira (Department of Materials Processing, Tohoku University)
- Published : 2006.09.24
Abstract
Gas release behavior from aluminum and Al 7075 alloy powders during heating in argon was investigated by in-situ gas chromatography. Water vapor, hydrogen, carbon mono-oxide were detected as individual evolution spectra against heating temperature and time. The mechanisms of water and hydrogen evolutions were studied in detail for the determination of effective degassing condition. Magnesium in the alloy powder was found to lower the hydrogen evolution temperature to enhance overall hydrogen release.
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