石墨烯增强钛基复合材料研究进展-中国材料进展

文章信息/Info

Author(s):: MU Xiaonan; ZHANG Hongmei; WANG Yu; 1. School of Materials Science and Engineering, Beijing Institute of Technology, Beijing 100081, China 2. National Key Laboratory of Science and Technology on Materials Under Shock and Impact, Beijing 100081, China

Keywords:: graphene; titanium matrix composites; fabrication method; interface design; mechanical behavior

摘要:: 非连续增强钛基复合材料（DRTMCs）具有高比强度、低密度、优异的耐蚀性等诸多特性，在航空航天、国防工业、交通运输等领域具有广泛的应用前景。石墨烯具有良好的本征物理和力学性能，是近年来的二维碳纳米“明星”材料，被视为极具潜力的DRTMCs纳米增强体。国内外研究者聚焦DRTMCs设计与制备，突破了低温快速成型和界面改性等关键技术，初步实现了界面精细调控和微观构型，获得石墨烯在钛基体中的本征增强，制备出强塑性匹配较好的DRTMCs。简要综述近些年来石墨烯增强钛基复合材料的设计方法和制备工艺，探讨界面反应、界面结构、微观构型等关键因素对复合材料力学性能和失效机制的影响规律，并提出石墨烯增强钛基复合材料未来的发展方向。

Abstract:: Discontinuously reinforced titanium matrix composites (DRTMCs) have many excellent properties such as high specific strength, low density, superior corrosion resistance, which have become ideal candidates for aerospace,defense industry and transportation field and have a wide range of applications. Graphene, as a two-dimensional carbon nano “star” material with excellent intrinsic physical and mechanical properties, has been regarded as a promising nano-reinforcement for DRTMCs in recent years. Recently, domestic and foreign researchers have been focusing on solving the key issue of severe interfacial reaction caused by traditional high-temperature sintering through rapid low-temperature consolidation as well as powder modification,established a precise interface control method for graphene-reinforced Ti composites, and optimized the configuration to realize the graphene nanoplatelets intrinsic strengthening. The present work summarized the fabrication and design method of graphene reinforced titanium matrix composites in recent years,investigating the effects of interface reactions, interface structure and micro-configuration or other key factors on the mechanical properties, failure mechanism, and prospected the development trend of graphene reinforced titanium matrix composites in the further.