Study on laser-alloyed self-lubricating anti-wear composite coating after ageing treatment. Issue 13 (1st September 2016)

• Record Type: Journal Article
• Authors: Qiao, S.-J.; Liu, X.-B.; Zhai, Y.-J.; Fu, G.-Y.; Zhu, G.-X.; Wang, Y.-G.; Chen, Y.
• Is Part Of: Materials science and technology. Volume 32:Issue 13(2016)
• Page Start: 1395
• Page End: 1402
• Publication Date: 2016-09-01
• Subjects: Composite materials -- Coating -- Ageing treatment -- Tribology and wear -- High-temperature stability; Materials science -- Periodicals; Microstructure -- Periodicals; Metallurgy -- Periodicals; 620.1105
• DOI: 10.1080/02670836.2015.1126906
• Languages: English
• ISSNs: 0267-0836

Abstract

Abstract : The NiCr/Cr3 C2 -10CaF2 (wt-%) composite coatings were fabricated on Ti-6Al-4V alloy by laser surface alloying. Ageing treatments were performed at 600°C for 0, 24, 48 and 96 h, respectively. Microstructure and tribological properties of the as-laser-alloyed and aged composite coatings were investigated systematically. Results showed that microstructure became more homogeneous after ageing at 600°C for 48 h. Wear rates and friction coefficients of the aged composite coatings were slightly higher than that of the as-laser-alloyed coating. It indicates that microstructure and tribological properties of the composite coatings present good high-temperature stability.