Carbon Nanotube Reinforced Titanium Metal Matrix Composites Prepared by Powder Metallurgy—A Review
Carbon Nanotube Reinforced Titanium Metal Matrix Composites Prepared by Powder Metallurgy—A Review
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DOI：
10.1080/10408436.2014.929521
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发表时间：
2015-01
影响因子：
10.8
通讯作者：
K. Munir;P. Kingshott;C. Wen
中科院分区：
文献类型：
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作者：
K. Munir;P. Kingshott;C. Wen
钛基金属复合材料（TMC）在航空航天、汽车和其他高温工程应用中显示出巨大的潜力，可替代现有的传统材料。这是由于其优异的机械、热和物理性能以及改进的强度重量比。航空航天工业中的重量减轻带来了更高的效率。碳纳米管（CNTs）由于其低密度和高弹性模量，被认为是金属基复合材料（MMCs）的优良增强体。在过去的20年中，已经进行了广泛的研究来研究碳纳米管与铝、镍、铜、镁和其他金属基质的结合。本文综述了碳纳米管增强钛基复合材料的制备方法，如粉末冶金机械合金化法及其对复合材料力学性能的影响。突出了碳纳米管的体积分数及其分散到金属基体中的作用。推导了预测碳纳米管增强钛基复合材料力学性能和摩擦学性能的控制方程。借助于这种性能的初始预测，可以优化最佳的工艺参数。CNT增强的TMCs的成功开发将导致更好的磨损和机械性能，并提高其承受高温和结构载荷环境的能力。
Titanium-based metal composites (TMCs) are showing great potential to replace existing traditional materials in aerospace, automotive, and other high temperature engineering applications. This is due to their excellent mechanical, thermal, and physical properties and improved strength to weight ratio. Weight savings in the aerospace industry results in higher efficiency. Carbon nanotubes (CNTs), because of their low density and high Young's modulus, are considered to be an excellent reinforcement for metal matrix composites (MMCs). In the last 20 years extensive research has been carried out to investigate the combination of carbon nanotubes with aluminum, nickel, copper, magnesium, and other metal matrices. The production techniques such as mechanical alloying through powder metallurgy routes and their effects on the mechanical properties of CNT reinforced TMCs are reviewed in this article. The role of the volume fraction of carbon nanotubes and their dispersion into the metal matrix are highlighted. Governing equations to predict the mechanical and tribological properties of CNT reinforced titanium matrix composites are deduced. With the help of this initial prediction of properties, the optimal processing parameters can be optimized. Successful development of CNT reinforced TMCs would result in better wear and mechanical behavior and enhance their ability to withstand high temperature and structural loading environments.