Journal
SURFACE & COATINGS TECHNOLOGY
Volume 368, Issue -, Pages 8-14Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.surfcoat.2019.04.034
Keywords
W-Cu composites; Cold spray; Deposition efficiency; Wear behavior
Funding
- National Natural Science Foundation of China [51501179]
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W-Cu composite coatings with different tungsten (W) contents were fabricated by cold spraying. The morphology and microstructure were studied using scanning electron microscopy (SEM), with W content and porosity of the final coatings being measured by an Image analysis software program equipped with SEM. Results showed that a dense coating with very low porosity, and free of impurity phase can be obtained by cold spraying. The porosity and thickness of the coatings decreased with the increasing of W content in the starting blend powders. The deposition efficiency of W was improved with the addition of soft particles. The wear behavior and possible bonding mechanisms of W-Cu composite coatings were also investigated.
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