The Pseudo-Eutectic Microstructure and Enhanced Properties in Laser-Cladded Hypereutectic Ti–20%Si Coatings
Abstract
:1. Introduction
2. Materials and Methods
3. Results and Discussion
3.1. Characterization of Microstructure and Phases
3.2. Hardness and Fracture Resistance
3.3. Corrosion Resistance in the Simulated Body Fluid Solution
4. Conclusions
- (1)
- A pseudo-eutectic (α-Ti + Ti5Si3) microstructure was obtained in the hypereutectic Ti–20%Si coating produced by laser cladding. Unlike the metal cast material, coarse primary Ti5Si3 crystals are absent.
- (2)
- The fine and well dispersed eutectic Ti5Si3 phase of the laser-cladded material greatly improves the hardness, corrosion resistance, and fracture resistance of the hypereutectic Ti–20%Si when compared with the same alloy prepared by the conventional metal mold casting method.
Acknowledgments
Author Contributions
Conflicts of Interest
References
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Zhang, H.; Zhang, Z.; Yue, T.M. The Pseudo-Eutectic Microstructure and Enhanced Properties in Laser-Cladded Hypereutectic Ti–20%Si Coatings. Metals 2017, 7, 33. https://doi.org/10.3390/met7020033
Zhang H, Zhang Z, Yue TM. The Pseudo-Eutectic Microstructure and Enhanced Properties in Laser-Cladded Hypereutectic Ti–20%Si Coatings. Metals. 2017; 7(2):33. https://doi.org/10.3390/met7020033
Chicago/Turabian StyleZhang, Hui, Zhonghong Zhang, and T. M. Yue. 2017. "The Pseudo-Eutectic Microstructure and Enhanced Properties in Laser-Cladded Hypereutectic Ti–20%Si Coatings" Metals 7, no. 2: 33. https://doi.org/10.3390/met7020033