Paper Title:
Experimental Research on Laser Brazing of Diamond Grits with a Ni-Based Filler Alloy
  Abstract

Brazing diamond grits onto steel substrate using a Ni-based filler alloy was carried out via laser beam in an argon atmosphere. The microstructure of the interfacial region among the Diamond grits and the filler layer 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 through parameters optimization.

  Info
Periodical
Edited by
Bo Zhao, Xipeng Xu, Guangqi Cai and Renke Kang
Pages
396-400
DOI
10.4028/www.scientific.net/KEM.416.396
Citation
Z. B. Yang, A. J. Liu, J. H. Xu, "Experimental Research on Laser Brazing of Diamond Grits with a Ni-Based Filler Alloy ", Key Engineering Materials, Vol. 416, pp. 396-400, 2009
Online since
September 2009
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Price
$35.00
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