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Meeting MS&T21: Materials Science & Technology
Symposium Powder Metallurgical Components in High Performance Applications
Presentation Title High-strength Titanium Matrix Composites Reinforced with In Situ Polycarbosilane-derived TiC Particle
Author(s) Xin Lu, Yu Pan
On-Site Speaker (Planned) Xin Lu
Abstract Scope Titanium matrix composites (TMCs) offer much improved strength, elastic modulus, and wear resistance at both room and elevated temperatures, meeting the increasing demand for high-performance light-weight structural materials. In this work, we developed a powder conditioning process that involves coating polycarbosilane (PCS) on Ti particles. After sintering, the conditioned Ti powder was converted into Ti composites. TiC was derived from the pyrolysis of PCS and forming an in-situ reinforcement. The average grain size of α-Ti decreases significantly from 100.5 μm in pure Ti to 16.1 μm in the Ti-3 wt.% PCS composite. Among these Ti composites, the 3 wt.% PCS sample exhibits a high room temperature tensile strength of 861 MPa, high yield strength of 754 MPa and reasonably large elongation of 10.8%, respectively. This work would shed light on the design of low-cost and high-performance material with in-situ reinforcement.
Proceedings Inclusion? Planned: At-meeting proceedings


Cemented Carbides with Complex Binder Alloys
Development of Eco-friendly POM Binder System for High Strength Ti-MIM
Development of Resistance Based Sintering for Metal Powders
Dispersing Tailored Nanoparticles through Powder Metallurgy Consolidation
Effect of Manufacturing Parameters on Inoculated PM Tool Steel Properties
Fabrication of Titanium and Titanium Alloy Components by Thermomechanical Powder Consolidation
High-strength Titanium Matrix Composites Reinforced with In Situ Polycarbosilane-derived TiC Particle
Microstructural Uniformity duringSsintering, Thermal-plastic Processing and Recrystallization of Tungsten
Selective Laser Melting of Metallic Glass Powder to Improve Chemical and Mechanical Performance of Magnesium
Synthesis of Low-oxygen Titanium towards Achieving Strength-ductility Synergy
Synthesis, Sintering and Mechanical Behavior of Ultra-fine Low-oxygen Titanium Powder
Thermodynamic Model for Predicting the Embodied Energy of Titanium Alloys Produced by Powder Metallurgy

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