Characterization of Pure Titanium and Ti6Al4V Alloy Modified by Plasma Electrolytic Carbonitriding Process

Abstract:

Porous nanocrystalline thick Ti (C_xN_1-x) films which bond firmly to the substrate are obtained on commercially pure titanium and Ti6Al4V alloy by plasma electrolytic carbonitriding (PECN) treatment. The microstructures and compositions of the modified layer on different substrates were compared. The results showed that the modified layer is composed of the outer Ti (CxN_1-x) film and the diffusion layer. When discharge-treated for 150 min, the thickness of the Ti (CxN_1-x) film is ~15μm, irrespective of the different substrate. The TiH₂ riched diffusion layer which is 40-45μm thick is located beneath the Ti (C_xN_1-x) film for the pure titanium substrate, while for Ti6Al4V alloy it is the β-Ti-riched layer which is ~100 μm thick.

• Periodical: Key Engineering Materials (Volume 522)
• Pages: 152-155
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.522.152
• Online since: August 2012
• Authors: Xin Mei Li, Xiao Feng Dong, Tu Erxun Si Dike, Kai Jie Li, Dong Yu
• Keywords: Characterization, Plasma Electrolytic Carbonitriding, Ti-6Al-4V Alloy, Titanium

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