Paper Title:
TiC Reinforced Steel Matrix Composite Layers Produced by Laser Surface Alloying
  Abstract

In the present work, laser surface alloying of H13 tool steel by using TiC has been performed by means of DHPDL (Direct high power diode laser). Different layers were produced by varying laser beam power and powder feeding rate. Several alloying degrees were obtained depending on the laser parameters employed. Laser surface alloyed layers were analyzed by using optical and scanning electron microscopy. Wear resistance was evaluated through pin-on-disk tests at room temperature. In general, it was observed that dilution of TiC powders into the molten H13 substrate decreased as the powder-feeding rate increased and particles size of the titanium carbide precipitates was larger for the higher feeding rates. Wear measurements showed lower values for the wear resistance coefficient of laser alloying layers produced at higher values of the powder injection (feeding) rate. Analysis of the wear surface track was conducted and the specific contribution of the microstructural features on the wear coefficient was assessed. Thus, it was found that larger particles sizes and particle contents protected the martensitic and dendritic steel matrix from being deeply worn. Lower TiC contents in the alloyed layer gave rise to a higher contribution of the plastic deformation in the wear track.

  Info
Periodical
Edited by
Ch. Linsmeier and M. Reinelt
Pages
55-61
DOI
10.4028/www.scientific.net/AMR.59.55
Citation
A. Fernández-Vicente, G. Castro, J.L. Arias, M. A. Montealegre, "TiC Reinforced Steel Matrix Composite Layers Produced by Laser Surface Alloying", Advanced Materials Research, Vol. 59, pp. 55-61, 2009
Online since
December 2008
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Jian Bin Zhang, Ding Fan, Jing Jie Dai, Yao Ning Sun
Abstract:Laser surface alloying is an attractive processing to improve surface hardness, wear and corrosion resistance. In this paper, a continuous...
1148
Authors: Leszek Adam Dobrzański, Mirołsaw Bonek, Marek Piec, Ewa Jonda
Abstract:The objective of the present work was to study the modification of the microstructure of hot-work tool steels X40CrMoV5-1 and X38CrMoV5-3...
657
Authors: Jing Xu, Wen Yan Wang, Jing Pei Xie, Ji Wen Li, Ai Qin Wang
Abstract:The wear resistance, corrosion resistance, high temperature resistance layers were prepared on the surface of ductile iron via laser alloying...
413
Authors: Wen Yan Wang, Xiao Ming Dong, Jing Pei Xie, Jing Xu, Luo Li Li
Abstract:Using sub-micron WC/Co metal ceramic composite as coating materials for laser alloying experiments to prepare high hardness and wear...
643
Authors: Chang Qing Guo
Chapter 17: Surface Engineering/Coatings
Abstract:A surface alloyed process that adopted ferrous-tungsten and carbon powders as reactants to in-suite synthesize WC reinforcement particles...
3038