Paper Title:
Laser Brazing of Diamond Grits with a Ni-Based Brazing Alloy
  Abstract

Brazing diamond grits onto steel substrate using a Ni-based filler alloy was carried out by laser beam in an argon atmosphere. The microstructure of the interfacial region among the Diamond grits, the filler layer and the steel substrate, were investigated by means of scanning electron microscopes (SEM), X-ray diffraction (XRD) and energy dispersive X-ray spectroscopy (EDS). Meanwhile, the formation mechanism of carbide layers was discussed. All the results indicated that the active element chromium in the Ni-based alloy concentrated preferentially to the surface of the grits to form a chromium-rich layer, and the hard joint between the alloy and the steel substrate is established through a cross-diffusion of iron and Ni-based alloy.

  Info
Periodical
Key Engineering Materials (Volumes 359-360)
Edited by
Jiuhua Xu, Xipeng Xu, Guangqi Cai and Renke Kang
Pages
43-47
DOI
10.4028/www.scientific.net/KEM.359-360.43
Citation
Z. B. Yang, J. H. Xu, Y. C. Fu, H. J. Xu, "Laser Brazing of Diamond Grits with a Ni-Based Brazing Alloy ", Key Engineering Materials, Vols. 359-360, pp. 43-47, 2008
Online since
November 2007
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Price
$32.00
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