In Situ Synthesis of TiC-TiB2 Reinforced Fe-Based Composite Coating by Laser Cladding

Fang Zhou; Hui Yao Yang; Liang Hua He

doi:10.4028/www.scientific.net/AMM.341-342.162

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 341-342In Situ Synthesis of TiC-TiB2 Reinforced Fe-Based...

In Situ Synthesis of TiC-TiB₂ Reinforced Fe-Based Composite Coating by Laser Cladding

Abstract:

A Fe-based composite coating reinforced with in situ synthesized TiC-TiB₂ particles was successfully fabricated on Q235A by laser cladding with mixture powder of TiO₂, Al, B4C, C and Fe55 as precursors. The microstructure and mechanical properties of coating were investigated. The results show that the main phases of coating are TiB₂, TiC, (Fe,Cr)₇C₃and α-Fe. TiC particles show the shape of block, TiB₂ particles exhibit the shape of strip. Compared with the Q235A, the microhardness of the composite coating improved drastically.

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Periodical:

Applied Mechanics and Materials (Volumes 341-342)

Pages:

162-165

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.341-342.162

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Online since:

July 2013

Authors:

Fang Zhou, Hui Yao Yang, Liang Hua He

Keywords:

In Situ, Laser Cladding, Mechanical Property, Microstructure, TiC-TiB₂

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