Effect of Cu on the high-temperature wear behavior of FeAl-TiB2 coatings produced by extreme high-speed laser cladding

Xinyu Chi; Jianjun Yuan; Jinbao Li; Guanghao Pan; Yidan Cui; Xiang Li

Applied Surface Science Advances (Oct 2023)

Effect of Cu on the high-temperature wear behavior of FeAl-TiB2 coatings produced by extreme high-speed laser cladding

Xinyu Chi,
Jianjun Yuan,
Jinbao Li,
Guanghao Pan,
Yidan Cui,
Xiang Li

Affiliations

Xinyu Chi: Department of Mechanical and Electronic Engineering, Shandong University of Science and Technology, Taian 271000, China
Jianjun Yuan: Department of Mechanical and Electronic Engineering, Shandong University of Science and Technology, Taian 271000, China; Corresponding author.
Jinbao Li: Shandong Fiberglass Group Co., Ltd, Linyi 276400, China
Guanghao Pan: Department of Mechanical and Electronic Engineering, Shandong University of Science and Technology, Taian 271000, China
Yidan Cui: Department of Mechanical and Electronic Engineering, Shandong University of Science and Technology, Taian 271000, China
Xiang Li: Department of Mechanical and Electronic Engineering, Shandong University of Science and Technology, Taian 271000, China

Journal volume & issue: Vol. 17
p. 100439

Abstract

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Abstracts: To enhance the tribological and wear properties of carbon steel at high temperatures, FeAl-TiB2-Cux coatings were produced using an extreme high-speed laser cladding process. The coatings had varying Cu content and were made from original powders including Fe, Al, Cu, and TiB2. The study focused on the phase composition, microstructure, and wear mechanism of the coating. Results showed that the composite coatings mainly consisted of FeAl, TiB2, and Cu9Al4 with uniformly distributed remelted TiB2 particles. When Cu content was less than 3wt%, plastic deformation and oxidation wear dominated the coating's wear mode; when it exceeded 3wt%, abrasive wear became more prominent alongside oxidation wear. It was found that the tribo-film was formed by metal oxides during the dry sliding process. Especially, the coating with 5wt% Cu content exhibited the lowest friction coefficient wear rate at 600℃ due to the self-lubricating properties of CuO.

Published in Applied Surface Science Advances

ISSN: 2666-5239 (Online)
Publisher: Elsevier
Country of publisher: Netherlands
LCC subjects: Technology: Electrical engineering. Electronics. Nuclear engineering: Materials of engineering and construction. Mechanics of materials; Technology: Chemical technology: Industrial electrochemistry
Website: https://www.journals.elsevier.com/applied-surface-science-advances

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