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Reaction Synthesis of TiC-Ni Composite Coating on Copper Substrate Using Electro-Thermal Explosion Ultra-High Speed Spraying

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Abstract:

In this work, TiC-Ni coating was synthesized on copper substrate by electro-thermal explosion ultra-high speed spraying method at the discharge voltage of 26kV. Microstructure, phase structure, elemental distribution and microhardness of the coating were studied by means of scanning electron microscope in back-scatter-electron and secondary electron, energy-dispersive analysis X-ray spectroscopy, X-ray diffraction and Vickers hardness tester. The TiC-Ni coating, which exhibits no pores or cracks, consists of an irregular spheroidal TiC phase embedded in a nearly continuous Cu0.81Ni0.19 binder. TiC particles are uniformly distributed and the size of the TiC particle of the coating is less than 1.0 m because of the solute trapping effect. The average hardness of the TiC-Ni coating is approximately 1200 HV0.3.

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Periodical:

Key Engineering Materials (Volumes 434-435)

Pages:

526-529

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.434-435.526

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Online since:

March 2010

Authors:

Jing Jing Liu, Zong De Liu, Dong Yu Liu, Li Ping Zhao, Liang Wang, Wei Chun Xi

Keywords:

Electrothermal Explosion, Reaction Synthesis, TiC-Ni Coating, Ultra-High Speed Spraying

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© 2010 Trans Tech Publications Ltd. All Rights Reserved

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