Abrasive wear resistance of WC-Co and WC-AISI 304 composites by ball-cratering method

In the present work, the effect of different binder materials on the tribological properties of cemented carbides was studied. Flat samples of conventional WC-Co, and newly developed WC-AISI 304 stainless steel (SS) composites with and without carbon addition were surface finished by grinding and po...

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Bibliographic Details
Main Author: Vilhena, L. M. (author)
Other Authors: Fernandes, C. M. (author), Soares, E. (author), Sacramento, J. (author), Senos, A. M. R. (author), Ramalho, A. (author)
Format: article
Language:eng
Published: 1000
Subjects:
ROCK-DRILL BUTTONS
MICROABRASION RESISTANCE
SPRAYED COATINGS
COATED SURFACES
HARDMETALS
CORROSION
BEHAVIOR
TRANSITIONS
FRICTION
2-BODY
Online Access:http://hdl.handle.net/10773/20886
Country:Portugal
Oai:oai:ria.ua.pt:10773/20886
Description
Summary:In the present work, the effect of different binder materials on the tribological properties of cemented carbides was studied. Flat samples of conventional WC-Co, and newly developed WC-AISI 304 stainless steel (SS) composites with and without carbon addition were surface finished by grinding and polishing. Comparative experiments were performed using a ball-cratering tribometer. Worn surfaces were characterized by optical microscopy, surface scanning topography and scanning electron microscopy. It was found that the abrasive wear resistance of the developed WC-SS composites is higher than that of conventional WC-Co and decreases with the carbon addition, in a direct relation with the decreasing hardness. The mechanisms of wear degradation are discussed. (C) 2015 Elsevier B.V. All rights reserved.

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