Physical and Mechanical Properties of WC-Co Submicron Powders Using P/M Technique

Ahmad Aswad Mahaidin; Mohd Asri Selamat; Samsiah Abdul Manaf; Talib Ria Jaafar

doi:10.4028/www.scientific.net/AMR.879.12

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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 879Physical and Mechanical Properties of WC-Co...

Physical and Mechanical Properties of WC-Co Submicron Powders Using P/M Technique

Abstract:

The properties of WC-Co are greatly improved with the use of submicron powders. However, grain growth tends to occur during the sintering process which causes the properties to deteriorate to some extent. Free carbon and vanadium carbide are added in this study to serve as grain growth inhibitor. The effect of these two materials is evaluated based on WC-Co properties. In this work, the powders are mixed together via wet mixing process, compacted and undergo cold-isostatic pressing (CIP) before the samples are sintered in the temperature range of 1350-1450°C under nitrogen-based atmosphere. The physical and mechanical properties of the WC-Co sintered powders were analysed. Based on the work done, the WC-Co-C has a better properties compared to WC-Co-VC.

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Advanced Materials Research (Volume 879)

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12-15

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.879.12

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Online since:

January 2014

Authors:

Ahmad Aswad Mahaidin, Mohd Asri Selamat, Samsiah Abdul Manaf, Talib Ria Jaafar

Keywords:

Mechanical Property, Powder metallurgy, WC-Co

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