期刊
出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.msea.2018.07.056
关键词
Magnesium; Graphene nanoplatelets; Layered structure; Fracture; Mechanical properties
类别
资金
- National Natural Science Foundation of China [51671066, 51471059]
- Key Laboratory of Superlight Materials & Surface Technology (Harbin Engineering University)
- Ministry of Education and Key Laboratory of Lightweight and High Strength Structural Materials of Jiangxi Province
Balanced strength and toughness are essential elements for application of metal matrix composites and can be realized through structure construction. In this work, graphene nanoplatelets (GNPs) reinforced magnesium laminated composites were fabricated. The composites with 0.25 vol% and 0,75 vol% GNPs exhibit tensile strength of 160 MPa and 179 MPa, respectively (136 MPa for pure Mg). Homogeneously dispersed GNPs promotes the load transfer capacity and constrains the transformation of Mg foils to monolithic materials. The induced laminated structure prohibits the dislocation motion and strengthens the composites. The prolonged crack pathway by laminated structure also maintains the elongation to an appreciable level.
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