Preparation and Characterizations of NiTi Intermetallic Coatings

Abstract:

Much attention has been paid to NiTi intermetallic coating for enhancing cavitation erosion resistance property due to its shape memory effect. In this paper two processes were used to deposit NiTi intermetallic coatings. Process 1 was the deposition of NiTi intermetallic coating using warm spray process with NiTi intermetallic powder as feedstock, and solution treatment was subsequently performed. Process 2 was a mixture process of warm spray and laser treatment. Ni-Ti coating was first deposited via warm spray process with Ni-cladding Ti as feedstock, and laser-treatment was performed to realize the alloying of Ni-Ti. The microstructure and phase compositions for NiTi intermetallic coatings were characterized by means of SEM and XRD. The fundamental properties for NiTi intermetallic coatings were also analyzed.

• Periodical: Advanced Materials Research (Volumes 291-294)
• Pages: 80-83
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.291-294.80
• Online since: July 2011
• Authors: Chun Ming Deng, Min Liu, Chang Guang Deng, Hong Liang Dai, Ke Song Zhou
• Keywords: Heat Treatment, Laser Treatment, NiTi Intermetallic Coating, Warm Spray

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