SYMPOSIA PAPER Published: 01 January 2010
STP49173S

A Feasibility Study of the Use of Bismuth Bath to Replace Lead Bath as the Quenching Media for Steel Heat-Treating

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The metallurgical feasibility of replacing lead (Pb) bath with bismuth (Bi) bath as quenching media for steel has been investigated. It is found that there is a good consistency in microstructures and hardness, i.e., mechanical properties for specimens quenched in Bi and Pb bath. On the possible side effect of Bi molten on the quality of steels, both the theoretical and experimental results indicate that there is no apparent corrosion or reaction between Bi and steel during quenching operation in Bi bath. Therefore, it can be firmly concluded that replacing Pb bath with Bi bath as quenching media for steel is proven to be practicable.

Author Information

Ru, Jilai
China Academy of Railway Science, Beijing, China
Wang, Zhirui
University of Toronto, Canada
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Developed by Committee: D02
Pages: 596–608
DOI: 10.1520/STP49173S
ISBN-EB: 978-0-8031-8417-6
ISBN-13: 978-0-8031-7509-9