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Structure and Wear Resistance of Si-Y Co-deposition Coating on TC4 Alloy
Pages: 144-146+149
Year: Issue:  4
Journal: Hot Working Technology

Keyword:  TC4 alloysilicide coatingcoating structurefriction and wear resistanceY modification;
Abstract: Single silicide and Si-Y co-deposition coatings were prepared on TC4 alloy by using the pack cementation process. The microstructure, constituent phases of the two coatings as well as the friction-wear resistance of Si-Y co-deposition coating were studied. The results show that both coatings are mainly composed of TiSi2out layers and Ti5Si4 inner layers. The addition of Y in the coating can result in a larger coating thickness. The results of wear test show that Si-Y co-deposition coating can improve the wear resistance of TC4 alloy significantly.
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