Effect of Isothermal Heat Treatment on Abrasive Wear Resistance of HVOF WC-10Co-4Cr Coating

Kun Ying Ding; Tao Tao Cheng; Peng Cheng Lu

doi:10.4028/www.scientific.net/AMR.538-541.200

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 538-541Effect of Isothermal Heat Treatment on Abrasive...

Effect of Isothermal Heat Treatment on Abrasive Wear Resistance of HVOF WC-10Co-4Cr Coating

Abstract:

WC-10Co-4Cr cermet coatings were deposited on Inconel 718 alloy using the HVOF technique, then were heat treated by isothermal treatment (500°C, 3hours). The influences of isothermal heat treatment on micro-hardness, fracture toughness and abrasive wear resistance of WC coating were studied in this paper. The results show that the micro-hardness and fracture toughness of WC coating decrease after isothermal heat treatment, then the metallic blinder breaks up and the tungsten carbide particles pull out during abrasive wear test. Finally, it was concluded that the abrasive wear resistance of WC-10Co-4Cr coating decreased after isothermal heat treatment (500°C, 3hours).

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Periodical:

Advanced Materials Research (Volumes 538-541)

Pages:

200-206

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.538-541.200

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Online since:

June 2012

Authors:

Kun Ying Ding, Tao Tao Cheng, Peng Cheng Lu

Keywords:

Abrasive Wear Resistance, Fracture Toughness, HVOF, Isothermal Heat Treatment, WC-10Co-4Cr

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