Effects of particle density on depositing properties of WC-17Co by HVOF process

Kunying Ding, Lijun Wang*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)

Abstract

The in-flight and deposition properties of three types of WC-17Co powder with different particle densities during a high-velocity oxygen fuel (HVOF) thermal spray process were investigated. Three types of powder exhibited similar velocity upon impact on the substrate surface. The powder with the lower particle density exhibited a higher temperature upon impingement process, resulting in the generation of a higher flattening ratio. Thus, the coating derived from the powder with the lower particle density possessed superior micro-hardness, porosity and surface roughness. However, the coating with the lowest particle density showed the poorest fracture toughness because of the generation of the largest amount of amorphous phase.

Original languageEnglish
Pages (from-to)44-50
Number of pages7
JournalChina Welding (English Edition)
Volume23
Issue number4
Publication statusPublished - 25 Dec 2014
Externally publishedYes

Keywords

  • Deposition
  • Flattening
  • HVOF
  • Particle density
  • WC-17Co

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