Microstructure of In Situ TiB Reinforced Titanium Matrix Composite Coatings by Laser Cladding with Different Pre-Placed Powder Thickness

You Feng Zhang; Jun Li

doi:10.4028/www.scientific.net/AMR.239-242.899

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 239-242Microstructure of In Situ TiB Reinforced Titanium...

Microstructure of In Situ TiB Reinforced Titanium Matrix Composite Coatings by Laser Cladding with Different Pre-Placed Powder Thickness

Abstract:

In situ reaction synthesized TiB reinforced titanium matrix composites were fabricated using rapid non-equilibrium synthesis techniques of laser cladding. Titanium matrix composite were laser cladding treated on Ti-6Al-4V using Ti and B powder mixture, and the designed weight fractions of B were 10 wt.% in the starting powder mixture. The composite coating mainly consists of α-Ti and TiB. The reinforcement TiB is dispersed homogeneously in the composite coating with pre-placed powder thickness of 0.5mm. The influence of pre-placed powder thickness on microstructure of laser cladding coatings was discussed.

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Periodical:

Advanced Materials Research (Volumes 239-242)

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899-902

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https://doi.org/10.4028/www.scientific.net/AMR.239-242.899

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Online since:

May 2011

Authors:

You Feng Zhang, Jun Li

Keywords:

Laser Cladding, Microstructure, TiB, Titanium Matrix Composite

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