Paper Title:
Microstructures and Properties of Plasma Surfaced NiCrBSi+WC/Co Layers
  Abstract

Microstructures and properties of plasma surfaced NiCrBSi+20%WC/12Co layer prepared on the die steel (H13) substrate were investigated. The study showed that the interface boundary existed between the layer and substrate. Compared with the typical microstructures of welded joint, the similar columnar grains in the layer perpendicular to the interface line were observed, which were never seen in the plasma sprayed coating. The conclusion could be drawn that the bonding between the NiCrBSi+20%WC/12Co layer and H13 substrate belonged to the metallurgical cohesion. The XRD analysis showed that the main phases in the layer included γ-(Fe, Ni), Cr7BC4, Ni4B3, Cr7C3 and Co7W6, which brought higher strength and higher hardness to the surfaced layer than the H13 substrate.

  Info
Periodical
Advanced Materials Research (Volumes 291-294)
Chapter
Surface Engineering/Coatings
Edited by
Yungang Li, Pengcheng Wang, Liqun Ai, Xiaoming Sang and Jinglong Bu
Pages
109-112
DOI
10.4028/www.scientific.net/AMR.291-294.109
Citation
W. Q. Wang, B. S. Lu, S. M. Huang, Q. You, "Microstructures and Properties of Plasma Surfaced NiCrBSi+WC/Co Layers", Advanced Materials Research, Vols. 291-294, pp. 109-112, 2011
Online since
July 2011
Export
Price
$32.00
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