Ameliorating strength-ductility efficiency of graphene nanoplatelet-reinforced aluminum composites via deformation-driven metallurgy

1.5 wt% graphene nanoplatelet-reinforced aluminum matrix composites were prepared by deformation-driven metallurgy to ameliorate strength-ductility efficiency. Severe plastic deformation with its frictional/deformation heat introduced by deformation-driven metallurgy was studied by their strengtheni...

Full description

Saved in:
Bibliographic Details
Published in:Composites science and technology 2022-03, Vol.219, p.109225, Article 109225
Main Authors: Xie, Yuming, Meng, Xiangchen, Chang, Yuexin, Mao, Dongxin, Yang, Yuchen, Xu, Yanli, Wan, Long, Huang, Yongxian
Format: Article
Language:English
Subjects:
Aluminum base alloys
Aluminum carbide
Aluminum matrix composites
Aluminum oxide
Bonding strength
Composites
Deformation
Dispersion
Ductility
Dynamic recrystallization
Efficiency
Elongation
Grain refinement
Graphene
Interfaces
Interlayers
Mechanical properties
Metallurgical analysis
Microstructure
Modeling
Plastic deformation
Self compensation
Strengthening
Tensile strength
Ultimate tensile strength
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:1.5 wt% graphene nanoplatelet-reinforced aluminum matrix composites were prepared by deformation-driven metallurgy to ameliorate strength-ductility efficiency. Severe plastic deformation with its frictional/deformation heat introduced by deformation-driven metallurgy was studied by their strengthening-toughing behaviors related to graphene nanoplatelet dispersion, interfacial bonding, and grain refinement. The synergy strengthening behaviors were studied via modeling analysis. Uniform dispersion of graphene nanoplatelets and ultra-fine microstructures (267.0 nm) were obtained via severe plastic deformation and dynamic recrystallization. High-efficiency interfacial bonding was realized via graphene nanoplatelets-(amorphous Al2O3)-Al semi-direct interface without the formation of Al4C3. The automatic flow of Al2O3 nanodots to compensate for the spatial discontinuity caused by the interlayer slip of graphene was observed to achieve self-compensating spatial continuity. The ultimate tensile strength and elongation reached 468 ± 7 MPa and 19.9 ± 0.6%, respectively, showing an enhancement of strength by 293.3% with almost no loss in ductility. [Display omitted]
ISSN:0266-3538
1879-1050
DOI:10.1016/j.compscitech.2021.109225