Paper Title:
Laser Surface Alloying of NiCr-Cr3C2 and C-B-W-Cr Powders on Nodular Cast Iron Rolls
  Abstract

The laser surface alloying(LSA) technique was firstly used to form wear resistant layers on nodular cast iron rolls with two different powders, A: NiCr-Cr3C2 and B: C-B-W-Cr. The microstructure, element distribution and phases of the layers were investigated. Results indicate that the alloying layers had pores and cracks, as well as a metallurgical bonding with the substrates. For layers with powder A, as the thickness of the pre-layers decreased, the numbers of pores and cracks of the LSA layers decreased but the thicknesses of them were close. Phases were barely influenced by the thickness of the pre-layer, while the content of them were affected. For layers with powder B, as the laser specific energy increased, the numbers of pores and cracks in the LSA layers decreased and the thicknesses of them increased. The microstructure in the layers with different powders was different.

  Info
Periodical
Advanced Materials Research (Volumes 79-82)
Edited by
Yansheng Yin and Xin Wang
Pages
1459-1462
DOI
10.4028/www.scientific.net/AMR.79-82.1459
Citation
G. F. Sun, C. S. Liu, J. Liang, J. H. Zhou, X. Q. Tao, "Laser Surface Alloying of NiCr-Cr3C2 and C-B-W-Cr Powders on Nodular Cast Iron Rolls", Advanced Materials Research, Vols. 79-82, pp. 1459-1462, 2009
Online since
August 2009
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: 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
Abstract:A ductile iron coated with metal-matrix pastes containing hard phase TiC and CrxCy was laser alloyed by an Nd: YAG laser and a CO2 laser. The...
1182
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: Tong Xin, Zhou Hong, Liu Min
Laser Processing Technology
Abstract:The past studies indicated that thermal fatigue resistance of cast irons could be improved by partly laser melting treatment. However the...
1405
Authors: Guang Yao Xiong, Meng Yu, Long Zhi Zhao
Chapter 2: Surface Engineering/Coatings
Abstract:AZ31 magnesium alloy preset SiC-316L powder by laser alloying on the surface treatment. The organizational structure and composition of...
243