(1. Qingdao Zhongche Sifang locomotive, Co., LTD. (2. The State Key Laboratory of Metal Matrix Composites, Shanghai Jiaotong University,
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DOI:
10.7502/j.issn.1674-3962.2016.09.07
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Abstract:
When improving the strength and elastic modulus of traditional metal matrix composites, their toughness always decreased at the mean time, which limits their application in various fields. In order to meet the needs in the field of high technology and the ductility and toughness of composites, hybrid reinforcements with various types or different sizes were used in metal matrix composites. It combines the unique properties of the reinforcements to improve the properties of composites. The interactions between hybrid reinforcements make the metal matrix composites with lower thermal expansion coefficient, higher wear resistance and superior mechanical properties. In addition, it also reduced the cost of raw materials. Therefore, hybrid composites become the most potential material for application in aerospace and defense cutting-edge technology, and promote the progress of the entire industrial technology. This paper introduces types of hybrid reinforced metal matrix composites and progress in the research of hybrid composites. The basic structures of hybrid reinforcements and their advantages and disadvantages are summarized, and the future development of the configuration and function of hybrid reinforced metal matrix composites and key problems of engineering application are discussed.