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Effects of Powder Mixing on the Mechanical Properties of Thermally Sprayed WC-Co-Cr Coating Layers

Authors
Lee, Chang WooHan, Jun HyunShin, Myung ChulKwun, S. I.
Issue Date
5월-2009
Publisher
KOREAN INST METALS MATERIALS
Keywords
thermal spray; HVOF; WC-Co-Cr; powder mixing; porosity; wear
Citation
JOURNAL OF THE KOREAN INSTITUTE OF METALS AND MATERIALS, v.47, no.5, pp.290 - 296
Indexed
SCIE
SCOPUS
KCI
Journal Title
JOURNAL OF THE KOREAN INSTITUTE OF METALS AND MATERIALS
Volume
47
Number
5
Start Page
290
End Page
296
URI
https://scholar.korea.ac.kr/handle/2021.sw.korea/120183
ISSN
1738-8228
Abstract
We report on the effects of mixing of powders with various particle sizes on fracture toughness and wear resistance of thermally sprayed WC-10Co-4Cr coating layers fabricated by HVOF (high-velocity oxygen fuel) process. The size and the mixing ratio of powders were changed in order to get high fracture toughness and wear resistance. The mixing of small amount of coarse powders with fine powders resulted in the highest fracture toughness and wear resistance due to the lowest porosity in coating layers.
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