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HomeMaterials Science ForumMaterials Science Forum Vols. 498-499Influence of NbC-Addition on Mechanical Properties...

Influence of NbC-Addition on Mechanical Properties of WC-Co

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Abstract:

Cemented carbides have been intensively used as cutting tool through their high hardness, high fracture toughness and high wear resistance. A considerable amount of works has been developed in order to improve the mechanical properties of alternate cemented carbide systems. This work has the purpose to reports the first results obtained to WC-Co reinforced with 5 wt.% NbC. The mixture of powders was hot-pressed at 1250 °C in a inert atmosphere. Hardness and fracture toughness were carried out in a Vickers hardness testing machine. The results have showed that the addition of niobium carbide improves the hardness of tungsten carbide and inhibits the WCgrain growth.

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Advanced Powder Technology IV

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Periodical:

Materials Science Forum (Volumes 498-499)

Pages:

363-368

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.498-499.363

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Online since:

November 2005

Authors:

Wilson Acchar, Harim Revoredo de Macedo

Keywords:

Composite Material, Hardness, Niobium Carbide, Tungsten Carbide

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© 2005 Trans Tech Publications Ltd. All Rights Reserved

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