Effects of plasma nitriding interlayer on adhesion and tribological behaviors of AlTiSiN coating. Issue 6 (16th August 2021)

• Record Type: Journal Article
• Authors: Yin, Mengjuan; Liang, Wenping; Miao, Qiang; Zuo, Shiwei; Yu, Haiyang; Cheng, Jiale
• Is Part Of: Industrial lubrication and tribology. Volume 73:Issue 6(2021)
• Page Start: 945
• Page End: 953
• Publication Date: 2021-08-16
• Subjects: DGPA -- Plasma nitriding interlayer -- PN/AlTiSiN layer -- Adhesion -- Anti-wear property; Lubrication and lubricants -- Periodicals; Tribology -- Periodicals; 621.89
• DOI: 10.1108/ILT-04-2021-0116
• Languages: English
• ISSNs: 0036-8792

Abstract

Abstract : Purpose: This study aims to the service life of TA15 alloy by solving the problem of the binding force between the matrix and AlTiSiN coating. The effect of a plasma nitriding (PN) interlayer on the magnetron-sputtered AlTiSiN coating was also investigated in detail. Design/methodology/approach: The double-glow plasma alloying (DGPA) and magnetron sputtering (MS) techniques were combined as a new approach to realize a bilayer on TA15 consisting of an AlTiSiN layer with a PN interlayer. A TiN interlayer was formed via co-diffusion during the PN conducted at 1050°C for 3 h. Findings: The PN interlayer can effectively improve the adhesion between coating and matrix; the PN/AlTiSiN coating presented excellent adhesion (80.1 N) and anti-wear property with a nano-hardness of 18.62 GPa. The resulting three-dimensional wear-track morphology exhibited a shallow depth and a narrow width. Originality/value: The novel combination of the DGPA and MS technologies, using an infiltration layer rather than a coating one as the intermediate layer, can effectively enhance the adhesion between AlTiSiN coating and TA15 matrix. Meanwhile, the gradient layer can effectively improve both surface bearing and wear resistance.