Impact damage behaviors of Cr3C2-NiCr/DLC duplex coatings

被引：0
作者：
He, Dongqing [1 ]
Liang, Ruirui [1 ]
Wang, Qianqian [1 ]
Shang, Lunlin [2 ]
机构：
[1] Lanzhou Univ Technol, State Key Lab Adv Proc & Recycling Nonferrous Met, Lanzhou 730050, Peoples R China
[2] Chinese Acad Sci, Lanzhou Inst Chem Phys, State Key Lab Solid Lubricat, Lanzhou 730000, Peoples R China
来源：
TRIBOLOGY INTERNATIONAL | 2024年 / 200卷
基金：
中国国家自然科学基金;
关键词：
Impact damage behaviors; Finite element analysis; Energy dissipation; MECHANICAL-PROPERTIES; CERAMIC COATINGS; SURFACE; PVD; HVOF; WEAR;
D O I：
10.1016/j.triboint.2024.110086
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
HVOF/PVD duplex design provides a new strategy to enhance impact damage resistance of thin DLC films. A comparative study was conducted on the impact damage behaviors of single-layer DLC films and Cr3C2-NiCr/DLC duplex coatings. The analysis focused on impact crater morphologies, impact-induced phase transition of DLC films, and contact stress distribution of the coating system, thereby revealing the impact damage mechanisms. The results indicated that introducing a cermet interlayer provided strong support for top DLC films, preventing severe plastic deformation of substrates under high contact stress, thereby improving the impact damage resistance of the top DLC films. Comparing the impact energy dissipation processes of single-layer DLC films and duplex coatings established a relationship between impact energy and resulting damage forms.
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页数：13
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