COMPARISON OF THE CORROSION-RESISTANCE OF TIN AND (TI,AL)N COATINGS

被引：63

作者：

PENTTINEN, IM

KORHONEN, AS

HARJU, E

TURKIA, MA

FORSEN, O

RISTOLAINEN, EO

机构：

[1] Helsinki University of Technology, 02150 Espoo

来源：

SURFACE & COATINGS TECHNOLOGY | 1992年 / 50卷 / 02期

关键词：

D O I：

10.1016/0257-8972(92)90057-H

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The corrosion resistance of various commercially available TiN-based physically vapor deposited coatings were compared. All coatings were deposited onto stainless steel substrates. The corrosion resistance of the samples was studied using anodic polarization and potentiostatic measurements. The film structure and substrate-coating interface chemistry were studied using X-ray diffraction, scanning electron microscopy (SEM) and secondary ion mass spectroscopy (SIMS). All samples had good corrosion resistance under short-term anodic polarization measurements but clear differences could be observed in the long-term potentiostatic experiments. The corrosion resistance was found to be based on two factors: (i) the degree of porosity in the thin film and (ii) the nature of the coating-substrate interface. The proper chemistry of the coating-substrate interface appeared to be important in achieving good corrosion resistance. TiN samples with proper chromium and chromium oxide distribution at the substrate-coating interface together with one (Ti,Al)N coating chosen for the study showed the best corrosion performance.

引用

页码：161 / 168

页数：8

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