Affiliation:
1. Key Laboratory for Liquid–Solid Structural Evolution & Processing of Materials Ministry of Education, Shandong University, Jinan 250061, China
2. School of Mechanical Engineering, Shandong University, Jinan 250061, China
Abstract
Abstract
In situ TiN ceramic particle reinforced FeCoNiCrMnTi high entropy alloy coating was fabricated by laser cladding processing at high purity nitrogen gas atmosphere on the AISI 304 stainless steel substrate. The effect of Ti addition on the microstructure, phase structure, and wear properties of the coatings was investigated. The results showed that the phase structure of the coatings was mainly face-centered cubic (FCC)-type γ phase. A few of cubic or flower-like TiN ceramic were formed after adding titanium into the FeCoNiCrMn powder. When atomic ratio of Ti exceeds 0.5, Laves phases appeared in the coatings. With increasing of Ti, the micro-hardness and wear resistance of the coatings increased, but friction coefficient and crack resistance of the coatings reduced. Suitable Ti content in the FeCoNiCrMnTix, laser composite coating, had higher resistance to adhesive wear, oxidation wear, and cracking resistance.
Funder
Natural Science Foundation of Shandong Province
Subject
Surfaces, Coatings and Films,Surfaces and Interfaces,Mechanical Engineering,Mechanics of Materials
Cited by
7 articles.
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