|About this Abstract
||2023 TMS Annual Meeting & Exhibition
||Advances in Titanium Technology
||Mechanical, Thermal Conductive and Anti-wear Properties Improvement in Titanium Matrix Composites Reinforced with Graphene Nanosheets
||Qi Yan, Biao Chen, Wenfeng Lu, Hao Wang, Jinshan Li
|On-Site Speaker (Planned)
The simultaneous improvement in strength, thermal conductivity and tribol-characteristic performance has been seldom achieved in titanium matrix composites (TMCs). Herein, an effective powder metallurgy method is developed to fabricate TMCs reinforced by the high-content graphene nanosheet (GNS) with improved mechanical strength and functional performance. It is found that quasi-continuous-networked GNS not only construct a thermal channel for thermal conduct with reduced sp3 defects but also contribute to the self-lubricating performance of the composites. The results suggest that the as-fabricated 10.61 vol% GNS/Ti64 composites obtain an outstanding improved performance combination of 63.6% enhancement in compressive yield strength, 5.4% reduction in weight, 46.3% improvement in thermal conductivity, and 48.1% reduction in the coeffect of friction with 98.2% decrement for wear rate simultaneously. This study has achieved a dramatic improvement in comprehensive performance in Ti alloys and provided a simple method to develop metal matrix composites with load bearing and functional performance.
||Titanium, Composites, Mechanical Properties