Equilibrium solubility products of molybdenum carbide and tungsten carbide in iron

Solubility products for molybdenum carbide and tungsten carbide are absent from the literature despite their importance in secondary hardening steels and in microalloyed steels. Equilibrium solubility products were calculated for MoC, Mo 2C, WC and W 2C in ferrite and austenite. Molybdenum and tungs...

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Published in:Scripta materialia 2012-03, Vol.66 (5), p.243-246
Main Authors: Pavlina, Erik J., Speer, John G., Van Tyne, Chester J.
Format: Article
Language:English
Subjects:
Carbides
Iron alloys
Mathematical analysis
Molybdenum carbides
Precipitation
Secondary hardening
Solubility
Steels
Tungsten carbide
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description Solubility products for molybdenum carbide and tungsten carbide are absent from the literature despite their importance in secondary hardening steels and in microalloyed steels. Equilibrium solubility products were calculated for MoC, Mo 2C, WC and W 2C in ferrite and austenite. Molybdenum and tungsten carbides exhibit greater solubility than traditional microalloy carbides in iron and their predicted solution behavior is similar to that of other Group VI transition metal carbides. The calculated solubility products are consistent with precipitation behavior during secondary hardening in steels.
doi_str_mv 10.1016/j.scriptamat.2011.10.047
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subjects Carbides
Iron alloys
Mathematical analysis
Molybdenum carbides
Precipitation
Secondary hardening
Solubility
Steels
Tungsten carbide
title Equilibrium solubility products of molybdenum carbide and tungsten carbide in iron
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