Enhancing corrosion resistance of PVD-coated tools

被引：16

作者：

Vencovsky, PK

Sanchez, R

Branco, JRT

Galvano, M

机构：

[1] Brasimet Com Ind SA, Dpto DUROTiN, BR-04795912 Sao Paulo, Brazil

[2] Fdn Ctr Tecnol Minas Gerias, Setor Tecnol Met, BR-31170000 Belo Horizonte, MG, Brazil

[3] COFAP Cia Fabricadora Pecas, Div Componentes Motores, Lab Aneis, BR-09110901 Santo Andre, SP, Brazil

来源：

SURFACE & COATINGS TECHNOLOGY | 1998年 / 108卷 / 1-3期

关键词：

corrosion resistance; CrN coating; electroless NiP coating; PVD coating;

D O I：

10.1016/S0257-8972(98)00605-7

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

It is known that conventional PVD coatings like TiN and CrN offer a limited corrosion resistance due to their intrinsic porosity, that locally exposes the substrate. In the manufacturing of cutting, forming and plastic molding tools this fact restricts, in some cases, the option of steels that present a high hardness after heat treatment, but have a low corrosion resistance: for example, cold work tool steels and high speed steels. In the present work two ways to overcome this problem were studied: using an electroless NiP interlayer with a PVD CrN toplayer and using a doublelayer of PVD CrN. Both solutions presented a satisfactory adhesion and improved the corrosion resistance when compared to single PVD CrN coatings. (C) 1998 Elsevier Science S.A. All rights reserved.

引用

页码：599 / 603

页数：5

共 24 条

[11] CORROSION STUDIES WITH HARD COATING SUBSTRATE SYSTEMS [J].