Enhancing strength-ductility synergy of graphene/Al-Cu-Mg composites via forming MgAl2O4@graphene complex structure

被引：6
|
作者：
Li, X. N. [1 ,2 ]
Liu, Z. Y. [2 ]
Luo, H. J. [3 ]
Ma, K. [2 ]
Xiao, B. L. [2 ]
Wang, D. [2 ]
Ma, Z. Y. [2 ]
机构：
[1] Univ Sci & Technol China, Sch Mat Sci & Engn, 72 Wenhua Rd, Shenyang 110016, Peoples R China
[2] Chinese Acad Sci, Inst Met Res, Shi changxu Innovat Ctr Adv Mat, 72 Wenhua Rd, Shenyang 110016, Peoples R China
[3] Aerosp Syst Engn Shanghai, 3888 Yuanjiang Rd, Shanghai 201109, Peoples R China
来源：
COMPOSITES COMMUNICATIONS | 2023年 / 43卷
关键词：
Graphene nanoplate; Aluminum matrix composites; Complex interface; Strength -ductility synergy; ALUMINUM-MATRIX COMPOSITES; MECHANICAL-PROPERTIES; NANOPARTICLES; ENHANCEMENT; MGAL2O4; METAL;
D O I：
10.1016/j.coco.2023.101737
中图分类号：
TB33 [复合材料];
学科分类号：
摘要：
The strength and ductility of graphene nanoplate (GNP) reinforced 2009Al composite (GNP/2009Al) were enhanced simultaneously, through wrapping MgAl2O4 around GNP and forming an MgAl2O4@GNP complex structure via in-situ reaction of CuO, Al and Mg during fabrication. This architecture generated numerous Al-MgAl2O4-GNP complex interfaces due to crystallographic orientation relationship of the Al-MgAl2O4 inter-face and the strong Al-O-C chemical bond, therefore, it not only enhances the load transfer efficiency of GNP but also improves the dislocation storage capacity of the Al matrix. These factors contributed to a stable and persistent working hardening capability for the GNP/2009Al composite. The feasible design proposed in this work, namely the in-situ Al-MgAl2O4-GNP complex strategy, can achieve improved tensile properties in GNP/ 2009Al composites.
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页数：5
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