Mr. Mingxing Ma Profile

Mingxing Ma

at Tsinghua Univ

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Proceedings Article | 13 January 2005 Paper

Influence of adding strong-carbide-formation elements multiply on particle-reinforced Fe-matrix composite layer produced by laser cladding

Mingxing Ma, Wenjin Liu, Minlin Zhong, Hongjun Zhang, Weiming Zhang

Proceedings Volume 5629, (2005) https://doi.org/10.1117/12.577033

KEYWORDS: Cladding, Coating, Composites, Particles, Laser processing, Materials processing, Manufacturing, Resistance

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In the research hotspot of particle reinforced metal-matrix composite layer produced by laser cladding, in-situ reinforced particles obtained by adding strong-carbide-formation elements into cladding power have been attracting more attention for their unique advantage. The research has demonstrated that when adding strong-carbide-formation elements-Ti into the cladding powder of the Fe-C-Si-B separately, by optimizing the composition, better cladding coating with the characters of better strength and toughness, higher wear resistance and free of cracks. When the microstructure of cladding coating is hypoeutectic microstructure, its comprehensive performance is best. The research discovered that, compositely adding the strong-carbide-formation elements like Ti+V, Ti+Zr or V+Zr into the cladding coating is able to improve its comprehensive capability. All the cladding coatings obtained are hypoeutectic microstructure. The cladding coatings have a great deal of particulates, and its average microhardness reaches HV_0.2700-1400. The research also discovered that the cladding coating obtained is of less cracking after adding the Ti+Zr.

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