Influence of C2H2/N2 flow ratio on the microstructure, mechanical properties, and electrochemical behavior of TiCN composite coatings

被引：1

作者：

Chen, Qiang ^{[1
]}

Liang, Dandan ^{[1
]}

Zhang, Ergeng ^{[1
]}

Yang, Lei ^{[1
]}

Zhou, Qiong ^{[1
]}

Huang, Biao ^{[1
]}

Han, Sheng ^{[2
]}

机构：

[1] Shanghai Inst Technol, Shanghai Engn Res Ctr Phys Vapor Deposit PVD Super, Shanghai 201418, Peoples R China

[2] Shanghai Inst Technol, Sch Chem & Environm Engn, Shanghai 201418, Peoples R China

来源：

VACUUM | 2023年 / 212卷

关键词：

Composite coating; Microstructure; Mechanical property; Corrosion resistance; PHYSICAL VAPOR-DEPOSITION; CORROSION-RESISTANCE; MULTILAYER COATINGS; WEAR; DLC;

D O I：

10.1016/j.vacuum.2023.112056

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The microstructure, mechanical properties, and electrochemical performances of TiCN composite coatings were investigated. Via the modification of the C2H2/N2 flow ratio, TiCN coatings with various C contents were syn-thesized by combining a cathodic arc and glow discharge technology. With a C2H2/N2 flow ratio of 1:8, TiCN coating mainly consisted of the TiC phase. As the C2H2/N2 flow ratio exceeded 1:4, the crystallinity of TiCN coatings deteriorated. The coexistence of the amorphous and crystalline phases was detected in TiCN coatings with a C2H2/N2 flow ratio of 3:8. The introduction of the C element into TiCN coatings could disturb the growth orientation and induce dislocation motion, leading to an enhancive toughness and a decrease in hardness and elastic modulus. Moreover, the precipitation of amorphous C or CNx was beneficial to the corrosion resistance of TiCN coatings. This finding indicates the potential application of TiCN composite coating in corrosive environments.

引用

页数：12