Microstructure and Properties of WC-Co/NiCrBSi Brazing Coating

Abstract

Abstract: Through rolling technology, a flexible metal cloth consisting of metal powder (NiCrBSi powder or WC-Co powder) and organism in a certain ratio were made, which could be used as brazing coating raw materials. WC-Co/NiCrBSi wear coating was fabricated through high temperature vacuum brazing after the flexible metal clothes were assembled on 42CrMo steel surface. The tensile strengths of coating self and coating/matrix approached to 100-140 MPa and 300-360 MPa, respectively, at different brazing parameters. Effect of Co on the wear property of the coating was analyzed. The abrasive wear property of WC-Co/NiCrBSi brazing coating is better than WC-17Co/NiCrBSi flame overlaying and CoCrW overlaying.

Key words:

Shanping LU, Yi GUO, Liangshan CHEN. Microstructure and Properties of WC-Co/NiCrBSi Brazing Coating[J]. J Mater Sci Technol, 1999, 15(03): 283-285.

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Microstructure and Properties of WC-Co/NiCrBSi Brazing Coating

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