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Proceedings Papers

Study of Slide-Wear Resistance of Ultrasonic Arc Sprayed TiAl Alloy Coatings

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H. Wang, P. Li, Q. Guo, H. Yang
ITSC 2001, Thermal Spray 2001: Proceedings from the International Thermal Spray Conference, 1111-1113, May 28–30, 2001,
https://doi.org/10.31399/asm.cp.itsc2001p1111
Abstract
By use of homemade arc spraying system patented, which could make melted metal droplets atomized fully and make its flying velocity achieve ultrasonic velocity, TiAl alloy coatings were manufactured on the aluminum alloy (LY12) substrate surface. The slide wear resistance of TiAl alloy coatings was investigated. The effect of spraying parameters, coatings' chemical composition and microstructure on the slide-wear resistance of coatings was examined. Then the slide-wear mechanism of the coatings was discussed. The results showed that the slide wear resistance of TiAl alloy coatings by ultrasonic arc sprayed is 17 times higher than it of the aluminum alloy (LY12) substrate under the condition of dry slide-wear.
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Proceedings Papers

Study of Microstructure and Atomization Forming Process of Ultrasonic Arc Sprayed TiAI Alloy Coatings

Available to Purchase

H. Wang, P. Li, Q. Guo, H. Yang
ITSC 2001, Thermal Spray 2001: Proceedings from the International Thermal Spray Conference, 639-641, May 28–30, 2001,
https://doi.org/10.31399/asm.cp.itsc2001p0639
Abstract
By means of homemade ultrasonic arc spraying equipment patented, under the condition of the optimum arc spraying parameters, TiAl alloy coatings were manufactured on the aluminum alloy (LY12) matrix surface. The ultrasonic arc spraying forming process and microstructure of TiAl compounds alloy coatings were investigated by the color metallurgical microscopy, SEM, XRD, EPMA and chemical composition quantitative analysis (ICP). The results showed that TiAl compounds composite coatings can be synthesized by ultrasonic arc spraying system, the coatings possess typical lamella character, consist of TiN (or TiO), TiAl, Ti 0.7.1.1 Al(N,O), Ti 2.4 Al(N,O), Ti 2.4 Al and aluminum alloy solid solution.
View Papertitled, Study of Microstructure and Atomization Forming Process of Ultrasonic Arc Sprayed TiAI Alloy Coatings View PDF for content titled, Study of Microstructure and Atomization Forming Process of Ultrasonic Arc Sprayed TiAI Alloy Coatings