The "material genetic engineering" plan, based on the large data, is to investigate the high throughput design, fabrication and characterization techniques with the aim to shift the material research from traditional mode to high throughput mode with low cost and fast response speed, and to accelerate the research and development of new materials and achieve the goal of "double reduction halves". As the metal matrix composites (MMCs) exhibit multi-components and a thermodynamically non-equilibrium state during fabrication, some key issues occur and need to be addressed including: (1) for high throughput fabrication, currently developed high throughput technologies based on thermodynamically equilibrium conditions, such as spray printing and multi-node diffusion methods, are not applicable for MMCs; (2) for high throughput characterization, there is a lack of multi- dimensional, field and scale acquisition technique for the composition, morphology, microstructure and property of MMCs. In order to solve these problems, the progress on the research and development of high throughput fabrication and characterization techniques of MMCs was reviewed, especially, in the field of gradient reinforced MMCs and their high throughput combination characterization methods, which may promote the application of high throughput fabrication and characterization techniques in MMCs. Finally, the bottlenecks and prospects in the high throughput fabrication and characterization of MM Cs are proposed.

“材料基因工程”计划是以大数据作为支撑,采用高通量设计、制备和表征技术,促使材料研究从传统的试错模式转向低成本、快速响应的新模式,从而加快新材料的研发速度,实现研发成本和周期“双减半”的目标。金属基复合材料由于组分复杂、制备过程为热力学非平衡状态,带来一些新的问题需要解决,包括：(1) 高通量制备方法方面,针对合金块体样品开发的喷印合成法、多元结扩散法等基于热力学平衡理论的高通量制备技术无法直接用于金属基复合材料构件块体坯料的制造;(2) 高通量表征技术方面,缺乏针对金属基复合材料单一样品成分、形貌、组织、结构和性能的多维、多场、多尺度同步采集技术,以及针对阵列样品成分、形貌、组织与结构的快速表征技术。鉴于上述问题,本文综述了金属基复合材料高通量制备及表征技术发展现状及已取得的进展,特别是在增强体呈梯度分布的金属基复合材料制备技术与高通量组合表征方法上取得的突破,推动了高通量制备及表征技术在金属基复合材料领域的应用。最后指出了金属基复合材料高通量计算、制备方法和表征技术方面存在的瓶颈问题,并对高通量制备与表征技术的发展进行了展望。

Titanium alloys and titanium-based composites are widely used in the field of aerospace owing to their advantages such as low density and high specific strength. Graphene has been found to significantly improve the mechanical properties of metal matrix composites at a lower content due to high modulus, fracture strength, and specific surface area. To achieve excellent mechanical properties, TA15 titanium alloy was fabricated via spark plasma sintering (SPS), and the effects of sintering temperature, sintering time, and sintering pressure on the densification, microstructure, and mechanical properties of the obtained alloys were investigated. The results indicate that the sintering parameters exert trivial effect on the phase composition of the sintered TA15 titanium alloy. The microstructure of the sintered alloy is mainly determined by the sintering temperature, and the prolonged sintering time will cause microstructure coarsening. Meanwhile, the sintering pressure does not have obvious effect on the sintered microstructure. Furthermore, higher sintering temperature, longer sintering time, and accurate increase in sintering pressure contribute to the densification process of TA15 titanium alloy. At room and high temperatures, the comprehensive mechanical properties exhibited by the sintered TA15 titanium alloy are determined by density and microstructure. The dense TA15 titanium alloy can be fabricated via SPS under the sintering conditions of 900oC, 50 MPa, and 5 min. Such alloy exhibits optimally comprehensive mechanical properties at room and high temperatures. Additionally, 0.5% (mass fraction) graphene reinforced TA15 composites were fabricated by SPS under the sintering conditions of 900oC, 50 MPa, and 7 min. When compared with TA15 titanium alloy, the compression yield strength and ultimate compressive strength of composites have significantly improved at room and high temperatures.

采用放电等离子烧结(SPS)方法制备了TA15钛合金，并研究了烧结温度、烧结时间以及烧结压力参数对合金致密化、微观组织与力学性能的影响。结果表明：在烧结温度为800~1200℃、烧结时间为3~7 min、烧结压力为20~50 MPa的烧结条件下，烧结参数对TA15钛合金的物相组成影响不大；合金的微观组织主要由烧结温度决定，并且延长烧结时间会使微观组织发生一定的粗化，而烧结压力对微观组织没有明显的影响。升高烧结温度、延长烧结时间以及适当地增加烧结压力，有助于TA15钛合金致密化过程的进行。烧结态TA15钛合金的室温及高温压缩力学性能由合金的致密度和微观组织共同决定。采用SPS工艺在900℃及50 MPa的烧结条件下，5 min即可获得致密的TA15钛合金，并具有最佳的室温及高温综合力学性能。此外，在900℃、50 MPa和7 min的烧结条件下，采用SPS制备了0.5% (质量分数)石墨烯增强TA15复合材料，与TA15钛合金相比，复合材料室温与高温压缩屈服强度及极限抗压强度得到了明显提高。

Copper matrix composites have extensive application prospects in electronics and electrical engineering because of their excellent functional and mechanical properties. Graphene has excellent properties and a two-dimensional structure, making it an ideal reinforcement material. Compared with other reinforcements such as particles and whiskers, graphene has better performance matching with copper. Moreover, its distribution in the copper matrix can be controlled well, which can significantly improve the comprehensive properties of the composite. Therefore, controlling the distribution of graphene using novel fabrication processes is essential. This review focuses on the configuration of graphene distributed in a copper matrix (uniform configuration, layered configuration, and network configuration) and the corresponding fabrication processes. The effects of different graphene configurations on the properties of various copper matrix composites are discussed. New ideas for graphene configuration design, future development trends, and potential applications of graphene/copper matrix composites with unique configurations are anticipated.

铜基复合材料具有优异的功能特性及力学性能，在电子、电工等领域具有广阔的应用前景。作为一类理想的增强相，石墨烯具有优异的综合性能以及二维结构特征。相比于其他如颗粒增强相、晶须增强相，石墨烯与Cu的性能匹配性更好，同时其在Cu基体中的分布结构具有更强的可设计性，可显著改善铜基复合材料的综合性能，因此利用新工艺实现石墨烯分布构型的调控设计成为当今铜基复合材料研究的热点。本文总结了近年来石墨烯在Cu基体中分布的构型(均匀构型、层状构型以及网络构型)及其相应的制备工艺，讨论了石墨烯构型对于铜基复合材料性能的影响，并展望了石墨烯构型设计的新思路，以及特殊构型石墨烯/Cu复合材料未来的发展趋势以及应用领域。

To improve the mechanical properties of Mg alloys and broaden their application fields, high performance Mg matrix nanocomposites have received more and more attention nowadays. Therefore, the research on the basic mechanical properties and strengthening mechanism of new Mg matrix composites at nanoscale has important theoretical and practical significance. The mechanical properties of pristine single-layer graphene nanoplatelets (GNPs) and single-side and double-side nickel-coated GNP (Ni-GNP, Ni-GNP-Ni) reinforced Mg composites (GNP/Mg, Ni-GNP/Mg, Ni-GNP-Ni/Mg) are studied under uniaxial tension by molecular dynamics (MD) simulations. Meanwhile, their tensile properties are also compared with those of double-side nickel-coated GNP with vacancy defects (Ni-defected GNP-Ni) and double-side nickel-coated multilayer GNPs (Ni-nGNPs-Ni) reinforced Mg-based composites. The simulated results show that the mechanical properties of Mg matrix composites are improved significantly by the addition of GNPs. Compared with single crystal Mg, the tensile strength and elastic modulus of GNP/Mg nanocomposites at 300 K and 1×109 s-1 are increased by 32.60% and 37.91%, respectively; while the tensile strength and elastic modulus of Ni-GNP-Ni/Mg composites are increased by 46.79% and 54.53%, separately. In addition, there is a larger increase in the elastic modulus and tensile strength but a smaller increase in the fracture strain for Ni-defected GNP-Ni/Mg composites, while there is a larger increase in the tensile strength and fracture strain but a smaller increase in the elastic modulus for Ni-GNP/Mg composites as compared with those of GNP/Mg composites. The elastic modulus, tensile strength and fracture strain of Ni-GNP-Ni/Mg composites decreases with increase in temperature, showing a temperature softening effect, but the variation in the elastic modulus of the composites is insensitive to temperature. With increasing of the layers or volume fractions of GNPs in Ni-nGNPs-Ni, the elastic modulus, tensile strength and fracture strain of the composites are all increased significantly, and the composites show excellent comprehensive mechanical properties. It is concluded that the main strengthening mechanisms for Ni-GNP-Ni/Mg nanocomposites are strong interface bonding, effective load transfer from the Mg matrix to the Ni-GNP-Ni and dislocation strengthening by analysis of the evolution of atomic structure.