Deposition and properties of plasma sprayed NiCrCoMo–TiC composite coatings
作者： Lanming Hu , Suyun Li , Chao Li , Guanya Fu , Jining He
DOI: 10.1016/J.MATCHEMPHYS.2020.123502
关键词:
摘要: Abstract In this study, NiCrCoMo–TiC composite coatings were plasma sprayed using NiCrCoMo alloy powders and Ti–C powders. The microstructure, micro-hardness, wear behaviours investigated. coating consisted of Ni–Cr–Co–Mo phase. Ni–Cr–Co–Mo, TiC, TiO2 phases. average porosity was about 5.5 ± 0.6% it increased to 10.1 ± 0.9% after adding 25 wt% All the had a thickness ≥200 μm with layered structure. micro-hardness addition powders, by 39% 854HV0.2 as added 25 wt%. friction coefficient 0.43, that 0.60–0.64. volume NiCrCoMo–15TiC 0.3099 mm3, which just 28% coating. mechanism adhesive wear, fatigue abrasive wear.
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