Title

Effects Of Combined Surface Modification On Adhesion Strength Of Crn Coatings For Sts420

Keywords

Combined surface modification; Implantation; Nanoindentation; Nitrides

Abstract

In order to improve the durability and performance of molds and tools, diverse methods of surface modification are used where the adhesion strength between a substrate and coating plays an important role. To improve adhesion strength, a combined surface modification method is often utilized. In this study, adhesion strength and microstructure of various combined surface modifications (i.e., ion-nitriding, Cr intermediate layer, CrN layer and nitrogen ion-implantation) were examined on STS420. Phase constituents, microstructure, adhesion strength and hardness of coating-substrate system with combined surface modification were examined by using optical microscopy, X-ray diffraction, transmission electron microscopy, scratch test, and nano-indentation. The highest adhesion strength was observed when CrN coating was formed by nitrogen implantation on ion-nitrided substrate with a Cr-intermediate layer. Influence of processing sequence and combination is related to microstructural observations and adhesion strength. © (2010) Trans Tech Publications.

Publication Date

1-1-2010

Publication Title

Defect and Diffusion Forum

Volume

297-301

Number of Pages

1334-1339

Document Type

Article; Proceedings Paper

Personal Identifier

scopus

DOI Link

https://doi.org/10.4028/www.scientific.net/DDF.297-301.1334

Socpus ID

77952254274 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/77952254274

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