Microstructure and formation mechanism of titanium matrix composites coating on Ti-6Al-4V by laser cladding

2008 ◽  
Vol 35 (11) ◽  
pp. 1756-1759
Author(s):  
牛伟 Wei Niu ◽  
孙荣禄 Ronglu Sun ◽  
雷贻文 Yiwen Lei ◽  
郭喜华 Xihua Guo
Keyword(s):  
Laser Cladding ◽  
Formation Mechanism ◽  
Matrix Composites ◽  
Titanium Matrix ◽  
Titanium Matrix Composites

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

2011 ◽  
Vol 239-242 ◽  
pp. 899-902
Author(s):  
You Feng Zhang ◽  
Jun Li
Keyword(s):  
Composite Coating ◽  
Matrix Composite ◽  
Laser Cladding ◽  
Powder Mixture ◽  
Composite Coatings ◽  
Matrix Composites ◽  
Titanium Matrix ◽  
Titanium Matrix Composite ◽  
Titanium Matrix Composites

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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