The varying temperature tribological properties of TiAlN-Ag coatings deposited by magnetron sputtering

2018 International Conference on Advanced Materials, Intelligent Manufacturing and Automation

材料科学;机械制造;运输工程

Zhao, Yan^1 ; Hu, Shengshuang^2 ; Feng, Changjie^1 ; Chen, En^1

School of Materials Science and Engineering, Nanchang Hangkong University, Nanchang

330063, China^1

AVIC xi'An Aircraft Industry (Group)Company LTD, Xi'an

710089, China^2

关键词: Adhesive wears;    AISI-304 stainless steel;    Cross-section morphology;    Face-centered cubic;    Fatigue fracture;    Tribological properties;    Varying temperature;    Wear mechanisms;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/382/2/022004/pdf
DOI  :  10.1088/1757-899X/382/2/022004

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

TiAlN-Ag coatings were prepared on the AISI304 stainless steel by magnetron sputtering. The surface and cross-section morphology, microstructure, hardness and tribological properties of the coatings were investigated by scanning electron microscope(SEM), X-ray diffraction(XRD), micro-hardness tester and tribometer. The thickness of the TiAlN-Ag coating was about 10.2 μm, which consisted of face centered cubic TiAlN phases. Its hardness was 1044.8 Hv0.05. The tribological properties of the coatings were investigated by ball-on-disc tribometer against Al2O3 balls at RT-600 °C and 600 °C-300 °C. When at RT-600 °C, the coatings were worn badly, which resulted from that the adsorbed water film was destroyed due to the lower relative humidity. The wear mechanisms were mainly adhesive wear and fatigue fracture. When at 600 °C-300 °C, Ag diffused to the surface of the coating and acted as lubricant.