Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group

Laser Surface Modification of a Low Carbon Steel with Tungsten Carbide and Carbon

Not Accessible

Your library or personal account may give you access


For many industrial applications it is sufficient to have a small area of wear resistant surface. For this reason, cheap low carbon steel is chosen for the partial laser surface alloying. Laser alloying experiments of low carbon steel (16MnCrS5) were carried out by powder injection (WC/Co 88/12) and with graphite precoating for comparison. In addition, melt injection of tungsten carbide was used to produce a composite layer with hard tungsten carbide particles embedded in tough metal matrix. Detailed material investigations (metallographical, electromicroscopical and EDX-analyses) were undertaken on the samples obtained with these methods.

The experimental results indicate that for the samples alloyed with carbon, the hardness increases due to martensitic transformation. In the case of alloying with tungsten carbide powder, the hardening mechanism can be subdivided into two regimes: for the low tungsten concentration in the alloyed layers the hardness is increasing due to the martensitic transformation, while for the high tungsten concentration the increase in hardness is mainly resulted from the higher carbide amount in the alloyed layers. Abrasive wear tests on layers alloyed with tungsten carbide indicate that the wear resistance of martensite hardened layers is comparable with that of conventional hardened 100Cr6 steel and the wear resistance of tungsten carbide composite layers is comparable with taht of sintered WC/Co hard metals. By these results a microstructure can be produced as required to suit different wearing situations.

© 1991 Optical Society of America

PDF Article
More Like This
Improvement of wear resistance of high carbon steel by laser surface strengthening

Yinlan Zheng, Qianwu Hu, and Xiaoyan Zeng
Th21 CIOMP-OSA Summer Session: Lasers and Their Applications (SumSession) 2011

Laser surface hardening of an AISI 1541 steel

Isabela A. Ligabo, Caroline C.A. Ferreira, Evandro G.S. Zanni, Rafael H.M Siqueira, and Milton S.F. Lima
M4C.3 Latin America Optics and Photonics Conference (LAOP) 2022

Improved Hardness Characteristic of CO2 Laser Welded High Carbon Steels

Eng S. Ng, Ian A Watson, Hussein A Abdullah, and Chris R Chatwin
CThE3 The European Conference on Lasers and Electro-Optics (CLEO/Europe) 1996

Select as filters

Select Topics Cancel
© Copyright 2023 | Optica Publishing Group. All Rights Reserved