High-temperature tribological properties of Fe40Mn20Cr20Ni20 high-entropy alloys with composition gradient coating after solid aluminizing

IF 5.3 2区材料科学 Q1 MATERIALS SCIENCE, COATINGS & FILMS

Surface & Coatings Technology Pub Date : 2025-02-01 DOI:10.1016/j.surfcoat.2024.131721

Fan Li , Xi Jin , Xuejiao Wang , Huijun Yang , Junwei Qiao

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引用次数: 0

Abstract

Wear is one of the main ways of energy consumption in manufacturing industry. Improving the surface properties of the alloy can effectively improve this consumption. In this study, hot-rolled Fe₄₀Mn₂₀Cr₂₀Ni₂₀ HEA with FCC structure was aluminized by pack cementation method to form a multi-layer gradient coating with aluminized layer of 52 μm and interdiffusion layer of 21 μm. The microstructure, mechanical properties, growth kinetics and high temperature friction properties of the aluminized layer were analyzed. The hardness of aluminized HEA is higher than that of hot-rolled HEA, and the wear rate is very low at room temperature. With the increase of the temperature, the COF of hot-rolled HEA decreases gradually, yet the COF of aluminized HEA increases first and then decreases. At different temperatures, the wear mechanism of hot-rolled HEA is mainly adhesive wear, oxidation wear and abrasive wear. The wear mechanism of aluminized HEA is mainly abrasive wear, delamination wear and adhesive wear.

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来源期刊

Surface & Coatings Technology 工程技术-材料科学：膜

CiteScore

10.00

自引率

11.10%

发文量

921

审稿时长

19 days

期刊介绍： Surface and Coatings Technology is an international archival journal publishing scientific papers on significant developments in surface and interface engineering to modify and improve the surface properties of materials for protection in demanding contact conditions or aggressive environments, or for enhanced functional performance. Contributions range from original scientific articles concerned with fundamental and applied aspects of research or direct applications of metallic, inorganic, organic and composite coatings, to invited reviews of current technology in specific areas. Papers submitted to this journal are expected to be in line with the following aspects in processes, and properties/performance: A. Processes: Physical and chemical vapour deposition techniques, thermal and plasma spraying, surface modification by directed energy techniques such as ion, electron and laser beams, thermo-chemical treatment, wet chemical and electrochemical processes such as plating, sol-gel coating, anodization, plasma electrolytic oxidation, etc., but excluding painting. B. Properties/performance: friction performance, wear resistance (e.g., abrasion, erosion, fretting, etc), corrosion and oxidation resistance, thermal protection, diffusion resistance, hydrophilicity/hydrophobicity, and properties relevant to smart materials behaviour and enhanced multifunctional performance for environmental, energy and medical applications, but excluding device aspects.