Study on the Structure and Corrosion Resistance of Cr/CrCN Multilayer Coatings Prepared by HiPIMS

The Cr coating deposited by PVD method is difficult to apply on a large scale due to its poor corrosion resistance.The use of composite multilayer coating structure design can interrupt the growth of penetrating columnar crystals, reduce porosity and improve the corrosion resistance of PVD deposited...

Full description

Saved in:
Bibliographic Details
Published inCai liao bao hu Vol. 57; no. 7; pp. 43 - 51
Main Author TAN Shiyao, WANG Li, ZHANG Meiqi, WANG Zhenyu, WANG Yingquan, WANG Aiying, KE Peiling
Format Journal Article
LanguageChinese
Published Editorial Department of Materials Protection 01.07.2024
Subjects
cr/crcn； hipims； composite multilayer； corrosion resistance
Online AccessGet full text

Cover

More Information
Summary:The Cr coating deposited by PVD method is difficult to apply on a large scale due to its poor corrosion resistance.The use of composite multilayer coating structure design can interrupt the growth of penetrating columnar crystals, reduce porosity and improve the corrosion resistance of PVD deposited Cr coatings.In this work,Cr/CrCN multilayer coatings were deposited on the surface of 316L stainless steel substrate by high-power pulsed magnetron sputtering (HiPIMS) coupled with synchronous pulse bias technology.The morphology, composition and microstructure of the coating were characterized using SEM,XRD,EDS and Raman.The corrosion resistance of Cr/CrCN multilayer coatings prepared under four different methane flow rates (5, 15, 25, 35 sccm) was studied by electrochemical and acid salt spray tests.Results showed that the introduction of CrCN intermediate layer effectively interrupted the penetrating growth of columnar crystals, and the coating exhibited a dense and flat surface morphology.All four Cr/CrCN mult
ISSN:1001-1560
DOI:10.16577/j.issn.1001-1560.2024.0149