Gradient zones in WC–Ti(C,N)–Co-based cemented carbides: experimental study and computer simulations
✍ Scribed by M. Ekroth; R. Frykholm; M. Lindholm; H.-O. Andrén; J. Ågren
- Book ID
- 104402249
- Publisher
- Elsevier Science
- Year
- 2000
- Tongue
- English
- Weight
- 444 KB
- Volume
- 48
- Category
- Article
- ISSN
- 1359-6454
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✦ Synopsis
AbstractÐThe formation of surface zones with a composition gradient during sintering of WC±Ti(C,N)± Co cemented carbides has been studied experimentally and by computer simulations. The microstructure has been investigated with SEM and EPMA. The simulations are based on a solution of the multicomponent diusion equations, coupled with thermodynamic calculations using thermodynamic descriptions of the individual phases. The results from the simulations are in good agreement with the experimental results, indicating that diusion and the thermodynamic properties are the two major factors that control the gradient structure formation.