Kinetics of formation of graded layers on cemented carbides: Experimental investigations and DICTRA simulations

Kinetics of formation of graded layers on cemented carbides : Experimental investigations and DICTRA simulations

Garcia, J. (författare): Helmholtz-Zentrum Berlin für Materialien und Energie GmbH

(creator_code:org_t)

Elsevier BV, 2011
2011
Engelska.
Ingår i: International Journal of Refractory Metals and Hard Materials. - : Elsevier BV. - 0263-4368. ; 29:2, s. 256-259

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Abstract Ämnesord

Stäng

Kinetics of formation of fcc-free layers on Co-W-Ti-Ta-Nb-C-N cemented carbides was investigated by experimental methods and DICTRA simulations. The layer formation obeys a parabolic law, indicating a diffusion-controlled process. For DICTRA simulations, the influence of the mobilities for all diffusing elements in the liquid binder phase at the sintering temperature was investigated. The best agreement between experimental and simulations was obtained considering that the mobility of all metallic elements is two times slower compared with the mobility of the non-metallic elements. © 2010 Elsevier Ltd. All rights reserved.

Av författaren/redakt...: Garcia, J.; Lindwall, Greta; Prat, O.; Frisk, Karin

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