CHARACTERIZATION OF VC–VB PARTICLES REINFORCED FE-BASED COMPOSITE COATINGS PRODUCED BY LASER CLADDING

K. L. Qu, X. H. Wang () and Z. K. Wang
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K. L. Qu: Materials Science and Engineering, Shandong University, Jinan 250061, P. R. China
X. H. Wang: Materials Science and Engineering, Shandong University, Jinan 250061, P. R. China
Z. K. Wang: Materials Science and Engineering, Shandong University, Jinan 250061, P. R. China

Surface Review and Letters (SRL), 2016, vol. 23, issue 04, 1-8

Abstract: In situ synthesized VC–VB particles reinforced Fe-based composite coatings were produced by laser beam melting mixture of ferrovanadium (Fe–V) alloy, boron carbide (B4C), CaF2 and Fe-based self-melting powders. The results showed that VB particles with black regular and irregular blocky shape and VC with black flower-like shape were uniformly distributed in the coatings. The type, amount, and size of the reinforcements were influenced by the content of FeV40 and B4C powders. Compared to the substrate, the hardness and wear resistance of the composite coatings were greatly improved.

Keywords: Composite coatings; wear resistance; microstructure; laser cladding (search for similar items in EconPapers)
Date: 2016
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DOI: 10.1142/S0218625X16500190

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