Laser induction hybrid rapid cladding of WC particles reinforced NiCrBSi composite coatings
作者： Shengfeng Zhou , Xiaoqin Dai
DOI: 10.1016/J.APSUSC.2010.02.078
关键词:
摘要: Abstract In order to investigate the microstructure characteristics and properties of Ni-based WC composite coatings containing a relatively large amount particles by laser induction hybrid rapid cladding (LIHRC) compare individual without preheating, Ni60A + 35 wt.% are deposited on A3 steel plates LIHRC preheating. The coating produced preheating exhibits many cracks pores, while smooth pores is obtained LIHRC. Moreover, cast take similar dissolution in Namely, completely dissolved interact with alloy solvent precipitate blocky herringbone carbides, partially still preserve primary lamellar eutectic structure. A few split at interface W 2 C, then carbides. Compared has lower temperature gradient higher scanning speed. Therefore, can produce crack-free microhardness more homogeneous distribution successfully applied strengthen corrugated roller, showing that process efficiency good quality.
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