Influence of the milling parameters on the sintering behaviour of WC-Co composites

Stanciu, Victor Ioan; Vitry, Véronique; Delaunois, Fabienne

doi:10.1080/10426914.2020.1743850

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Influence of the milling parameters on the sintering behaviour of WC-Co composites

Stanciu, Victor Ioan; Vitry, Véronique; Delaunois, Fabienne

2020 • In Materials and Manufacturing Processes, 35 (7), p. 811-816

Peer Reviewed verified by ORBi

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https://hdl.handle.net/20.500.12907/31839

DOI
10.1080/10426914.2020.1743850

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Keywords :

[en] WC; [en] homogenization; [en] sintering; [en] properties; [en] duration; [en] milling; [en] GGI; [en] cobalt

Abstract :

[en] Often, in the studies dealing with the properties of WC-Co composites, the powders are mixed without quantifying the influence of this operation on the properties of the powders. Generally, WC powder, cobalt powder, and inhibitor powder are mixed together in a ball mill. The mixing time varies from 30 minutes to 72 hours in low-energy mixers or high-energy mills. In these conditions, the homogenization effect on the powder may differ greatly. To study the effect of the homogenization operation on the characteristics of two components, a mixture of WC and 10 wt.% of binder doped with Cr3C2 as GGI was prepared. The milling was carried out at speeds of 300 and 600 rpm, using two sizes of ball, for 6 hours. After sintering, the densification was significantly improved for the high-energy processed powders only. Moreover, the results confirm the important influence of mixing parameters on the powder behavior during sintering.

Disciplines :

Materials science & engineering

Author, co-author :

Stanciu, Victor Ioan

Vitry, Véronique ; Université de Mons > Faculté Polytechnique > Service de Métallurgie

Delaunois, Fabienne ; Université de Mons > Faculté Polytechnique > Service de Métallurgie

Language :

English

Title :

Influence of the milling parameters on the sintering behaviour of WC-Co composites

Publication date :

20 April 2020

Journal title :

Materials and Manufacturing Processes

ISSN :

1042-6914

Publisher :

Marcel Dekker, New York, United States - New York

Volume :

Issue :

Pages :

811-816

Peer reviewed :

Peer Reviewed verified by ORBi

Research unit :

F601 - Métallurgie

Research institute :

R400 - Institut de Recherche en Science et Ingénierie des Matériaux

Commentary :

https://doi.org/10.1080/10426914.2020.1743850

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since 20 April 2020

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