Stiff, strong and ductile heterostructured aluminum composites reinforced with oriented nanoplatelets. (December 2020)

• Record Type: Journal Article
• Authors: Nie, Jinfeng; Chen, Yuyao; Chen, Xiang; Liu, Xiangfa; Liu, Guiliang; Zhao, Yonghao; Zhu, Yuntian
• Is Part Of: Scripta materialia. Number 189(2020)
• Page Start: 140
• Page End: 144
• Publication Date: 2020-12
• Subjects: Aluminum alloys -- Heterogeneous structure -- Stiffness -- Ductility -- Preferential orientation; Materials -- Periodicals; Metallurgy -- Periodicals; Metalen; Legeringen; Materiaalkunde; Metals, metalworking and machinery industries; Metals; Electronic journals; 620.11
• DOI: 10.1016/j.scriptamat.2020.08.017
• Languages: English
• ISSNs: 1359-6462

Abstract

Graphical abstract: Image, graphical abstract Abstract: In this study, we report a liquid-solid reaction method combined with preferential particle orientation for fabricating a heterostructured Al3 BC/6061 composite with ultrahigh Young's modulus (105 GPa), high tensile strength (495 MPa) and reasonable ductility (6.2%). The preferential orientation of Al3 BC nanoplatelets contributes to the ultrahigh stiffness, and heterogeneous grain structure of the Al matrix facilitates the development of hetero-deformation induced stress and extra strain hardening, giving rise to high strength and good ductility. These results shed new sights into the untapped potential in improving the mechanical properties of metal matrix composites.