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Solidification Behavior of Fe-Base Amorphous Alloys during Twin-Roll Strip Casting

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Abstract:

Solidification behavior of two Fe-base amorphous alloys during twin-roll strip casting has been investigated in the present study. Continuous cooling transformation (CCT) diagrams of both alloys were calculated using the heterogeneous nucleation theory coupled with thermal data obtained during cooling. Cooling sequence during twin-roll strip casting was also simulated. These were used for the determination of the optimum twin-roll strip casting conditions at which desirable solidification behavior could be achieved. It shows that twin-roll strip casting can continuously fabricate sheet product of Fe-base bulk amorphous alloys, despite their higher liquidus temperatures and larger differences between liquidus and glass transition temperatures (Tg) than those of other easier glass-forming bulk amorphous alloys.

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Periodical:

Advanced Materials Research (Volumes 15-17)

Pages:

433-438

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.15-17.433

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Online since:

February 2006

Authors:

Yoon S. Oh, Jung G. Lee, Choong Nyun Paul Kim, Nack Kim

Keywords:

Fe-Base Amorphous Alloys, Solidification Behaviour, Twin-Roll Strip Casting

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© 2007 Trans Tech Publications Ltd. All Rights Reserved

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