CERMET ESD COATINGS MODIFIED BY LASER TREATMENT

被引：32

作者：

Radek, N. ^{[1
]}

Konstanty, J. ^{[2
]}

机构：

[1] Tech Univ Kielce, PL-25314 Kielce, Poland

[2] AGH Univ Sci & Technol, PL-30059 Krakow, Poland

来源：

ARCHIVES OF METALLURGY AND MATERIALS | 2012年 / 57卷 / 03期

关键词：

electro-spark deposition; laser treatment; coating; roughness; tribology; microstructure; corrosion resistance; microhardness; adhesion; POWDERS;

D O I：

10.2478/v10172-012-0071-y

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

The main objective of the present work was to determine the influence of laser treatment on microstructure, microhardness, roughness, bonding strength, corrosion resistance and tribological properties of wear resistant coatings produced on C45 carbon steel by the electro-spark deposition (ESD) process. Consumable WC-Co-Al2O3 electrodes were prepared by the powder metallurgy route and transferred to the substrate surface using the EIL-8A apparatus. The cermet layers were subsequently, melted by means of the BLS 720 Nd:YAG laser. The coating characterisation studies showed marked improvements in the bonding between the steel substrate and the cermet coating, and in corrosion resistance at the expense of higher surface roughness and minor drop in the Vickers microhardness.

引用

页码：665 / 670

页数：6

共 15 条

[1] Pulse electrode deposition of superhard boride coatings on ferrous alloy [J].