Thermodynamic modelling of the M6C carbide in cemented carbides and high-speed steel

被引：34

作者：

Frisk, K ^{[1
]}

Bratberg, J ^{[1
]}

Markström, A ^{[1
]}

机构：

[1] Corros & Met Res Inst, S-11428 Stockholm, Sweden

来源：

CALPHAD-COMPUTER COUPLING OF PHASE DIAGRAMS AND THERMOCHEMISTRY | 2005年 / 29卷 / 02期

关键词：

cemented carbides; high-speed steel; M6C carbide;

D O I：

10.1016/j.calphad.2005.07.001

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

Newly published experimental information on phase equilibria in cemented carbides and high-speed steel has shown that the solubility of Co, Nb, Si, Ta and V in the M6C carbide is higher than predicted by thermodynamic calculations. To account for this new information the model for M6C was extended. A thermodynamic description of the M6C carbide in cemented carbides and high-speed steels is presented. Several experimental studies have shown that there is a solubility of Si in M6C in high-speed steels, and the new model describes this solubility. A significant solubility of Co and Nb has also been observed, and was accounted for. The solubility of Nb, Ta and V in M6C in cemented carbide systems is described. The models are discussed, and the calculated equilibria are compared with the new experimental information. (c) 2005 Published by Elsevier Ltd.

引用

页码：91 / 96

页数：6

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