Influence of Sand Variety on Erosion Wear Properties of Nanostructured WC-12Co Coatings Deposited by HVOF Spraying

Yan Liu; Li Jun Wang; Hui Chen; Ming Jing Tu

doi:10.4028/www.scientific.net/AMR.396-398.472

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 396-398Influence of Sand Variety on Erosion Wear...

Influence of Sand Variety on Erosion Wear Properties of Nanostructured WC-12Co Coatings Deposited by HVOF Spraying

Abstract:

Nanostructured WC-12Co coating was prepared by means of High Velocity Oxygen Fuel (HVOF) spraying technology in this research. The erosion wear experiment system was developed to simulate the working condition to study the erosion wear properties. The corundum sand with main composition of Al2O3 and quartz sand with main composition of SiO2 were used to investigate the effects of sand variety on the erosion wear properties. The erosion wear failure mechanism of the coatings was also analyzed. The results show that the failure mechanism of the coating eroded by corundum sand is cracking between WC grains, while for the coating eroded by quartz sand, the failure mechanism is microcutting and microploughing.

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Periodical:

Advanced Materials Research (Volumes 396-398)

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472-477

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.396-398.472

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Online since:

November 2011

Authors:

Yan Liu, Li Jun Wang, Hui Chen, Ming Jing Tu

Keywords:

Erosion, Mechanism, Sand Variety, WC-12Co

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