Abstract

In this study, the effects of graphene content (0.15, 0.30, 0.45 and 0.60 wt%) on the mechanical, tribological and thermal properties of titanium matrix composites were investigated. The experimental results showed that the highest ultimate compressive strength (845 MPa), tensile strength (613 MPa), lowest mass loss (0.6 mg for 10 N), and lowest wear rate (WR = 286 × 10⁻⁵ mm³/Nm for10 N) were obtained for Ti-0.15GNPs compared with pure titanium (652 MPa, 413 MPa, 1 mg and 5 × 10⁻⁵ mm³/Nm, respectively). The wear rate of composites deteriorates with increasing applied load. From the thermal analysis results, the best thermal conductivity (16 W/mK) and diffusivity (7.1 mm²/s) were performed for Ti-0.30GNPs composites at room temperature. The thermal behavior of the composites was decreased with increasing graphene content and temperature. It concluded that graphene is an effective reinforcement to develop the mechanical, wear and thermal behavior of titanium matrix composites.

Graphic Abstract

中文翻译：

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石墨烯增强钛复合材料的力学，磨损和热行为

摘要

在这项研究中，研究了石墨烯含量（0.15、0.30、0.45和0.60 wt％）对钛基复合材料的机械，摩擦学和热学性能的影响。实验结果表明，最高极限抗压强度（845 MPa），抗拉强度（613 MPa），最低质量损失（0.6 N，10 N）和最低磨损率（WR = 286×10 ^-5  mm ³ / Nm，10）与纯钛（分别为652 MPa，413 MPa，1 mg和5×10 ^-5  mm ³ / Nm）相比，获得了Ti-0.15GNPs的N ）。复合材料的磨损率随着施加的载荷的增加而恶化。根据热分析结果，可以得出最佳的导热率（16 W / mK）和扩散率（7.1 mm ²/ s）是在室温下对Ti-0.30GNPs复合材料进行的。随着石墨烯含量和温度的升高，复合材料的热性能降低。结论是石墨烯是一种有效的增强材料，可增强钛基复合材料的机械性能，磨损性能和热性能。

图形摘要