Effect of hydrogen on the solidification velocity of highly undercooled nickel

Effect of hydrogen on the solidification velocity of highly undercooled nickel

The solidification velocity of undercooled nickel was measured in electromagnetic levitation under two different cooling gas environments, and residual gas concentrations were quantified in processed samples. Significant quantities of hydrogen were measured suggesting that hydrogen causes historical...

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Veröffentlicht in:Scripta materialia 2004-09, Vol.51 (6), p.539-544
Hauptverfasser: Algoso, P.R., Hofmeister, W.H., Bayuzick, R.J.
Format: Artikel
Sprache:eng
Schlagworte:
Applied sciences
Exact sciences and technology
Hydrogen
Kinetics
Metals. Metallurgy
Nickel
Rapid solidification
Undercooling solidification
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Zusammenfassung:The solidification velocity of undercooled nickel was measured in electromagnetic levitation under two different cooling gas environments, and residual gas concentrations were quantified in processed samples. Significant quantities of hydrogen were measured suggesting that hydrogen causes historically observed deviations from theoretically predicted solidification velocity at high undercoolings.
ISSN:1359-6462
1872-8456
DOI:10.1016/j.scriptamat.2004.05.039