Microstructure and Properties of Laser In-situ Synthesized Multiple Particles Reinforced Titanium Matrix Composite Coating

CHI Yiming; YU Lutao; QIAN Dahu; WANG Jiangang; HAN Boqun; YAO Jianhua

doi:10.16490/j.cnki.issn.1001-3660.2025.05.012

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Surface Technology ›› 2025, Vol. 54 ›› Issue (5) : 154-166. DOI: 10.16490/j.cnki.issn.1001-3660.2025.05.012

Microstructure and Properties of Laser In-situ Synthesized Multiple Particles Reinforced Titanium Matrix Composite Coating

CHI Yiming¹, YU Lutao¹, QIAN Dahu¹, YAO Jianhua¹, WANG Jiangang², HAN Boqun³

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Abstract

Considering the low hardness and poor wear resistance of titanium alloy, a laser surface alloying process was employed to prepare multi-particle reinforced titanium matrix composite coatings on the surface of TC4, by adding different contents of B4C powder to Ni-based alloy powder. Comparative analyses were conducted on the microstructure, phase composition, and wear resistance of these coatings. The formation mechanism of in-situ TiC-TiB2 composite structures was also discussed.

Key words

laser alloying; in-situ synthesis; multiple particle; TiC-TiB2 composite structures; wear-resistant

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CHI Yiming, YU Lutao, QIAN Dahu, WANG Jiangang, HAN Boqun, YAO Jianhua. Microstructure and Properties of Laser In-situ Synthesized Multiple Particles Reinforced Titanium Matrix Composite Coating[J]. Surface Technology. 2025, 54(5): 154-166