Enhancement mechanism of HVOF interlayers on ta-C film load-bearing and wear resistance

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

Surface & Coatings Technology Pub Date : 2025-04-11 DOI:10.1016/j.surfcoat.2025.132158

Bodun Zhu , Lunlin Shang , Yu Bian , Wensheng Li , Lei Shao , Guangan Zhang

引用次数: 0

Abstract

Tetrahedral amorphous carbon (ta-C) films possess the advantages of excellent wear resistance and high hardness. However, the high internal stress and intrinsic brittleness lead to the “egg shell effect” resulting in cracking and failure. In this study, we prepared HVOF/PVD duplex coatings with five different interlayers (Stellite12, NiCrBSi, Cr₃C₂-25NiCr, WC-10Co-4Cr, and WC-12Co) by HVOF to enhance the load-bearing capacity of the top ta-C film. Combining experimental results with finite element analysis, we investigated the effects of various interlayers on mechanical properties, tribological behavior, and wear mechanisms of ta-C films, and further compared them to the single ta-C film. The results indicate that the HVOF layer can significantly improve the comprehensive mechanical property and wear resistance of the duplex coatings.

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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.