Journal ArticleDOI
Effect of particle distribution on deformation and damage of two-phase alloys
K. T. Conlon,David Wilkinson +1 more
TLDR
In this article, the effect of inhomogeneous distribution of second phase particles on strength and damage has been studied using a model system based on rapidly solidified Al-Cu alloys which result in Al-cuAl2 composites, Materials with both a homogeneous and bimodal distribution of the CuAl2 particles have been produced.Abstract:
The effect of an inhomogeneous distribution of second phase particles on strength and damage has been studied here using a model system based on rapidly solidified Al–Cu alloys which result in Al–CuAl2 composites, Materials with both a homogeneous and bimodal distribution of the CuAl2 particles have been produced. When tested in compression (i.e. little or no damage) the clustered materials are significantly stronger than homogeneous alloys containing the same overall CuAl2 volume fraction. These results are consistent with a previously published self-consistent model.read more
Citations
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Journal ArticleDOI
Microstructurally inhomogeneous composites: Is a homogeneous reinforcement distribution optimal?
L.J. Huang,L. Geng,H-X. Peng +2 more
TL;DR: In this paper, a range of uniquely multi-scale hierarchical structures have been successfully designed and fabricated by tailoring reinforcement distribution for discontinuous metal matrix composites in order to obtain superior performance.
Journal ArticleDOI
A numerical investigation of the effect of particle clustering on the mechanical properties of composites
TL;DR: In this paper, the effect of reinforcement spatial distribution on the mechanical behavior of metal-matrix composites was investigated in finite element analysis of three-dimensional multiparticle cubic unit cells, which stood as representative volume elements of each material with periodic boundary conditions.
Journal ArticleDOI
Enhanced tensile properties of aluminium matrix composites reinforced with graphene encapsulated SiC nanoparticles
A. Fadavi Boostani,S. Tahamtan,Zhengyi Jiang,Dongbin Wei,Sasan Yazdani,R. Azari Khosroshahi,R. Taherzadeh Mousavian,Jianzhong Xu,X.M. Zhang,D. Gong +9 more
TL;DR: In this paper, an innovative approach was utilized to prevent agglomeration of nano-particle by encapsulating SiC nanoparticles using graphene sheets during ball milling, which resulted in an improvement in yield strength and tensile ductility, respectively.
Journal ArticleDOI
Effects of particle size and distribution on the mechanical properties of SiC reinforced Al–Cu alloy composites
TL;DR: In this article, the combined effects of particle size and distribution on the mechanical properties of the SiC particle reinforced Al-Cu alloy composites were studied, and it was shown that small ratio between matrix/reinforcement particle sizes resulted in more uniform distribution of SiC particles in the matrix.
Journal ArticleDOI
Fabrication of Al/A206–Al2O3 nano/micro composite by combining ball milling and stir casting technology
TL;DR: In this article, the effects of powder addition technique, reinforcement particle size and casting temperature on distribution and incorporation of reinforcing particles into molten Al alloy were investigated by scanning electron microscopy (SEM).
References
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Journal ArticleDOI
The Determination of the Elastic Field of an Ellipsoidal Inclusion, and Related Problems
TL;DR: In this paper, it is shown that to answer several questions of physical or engineering interest, it is necessary to know only the relatively simple elastic field inside the ellipsoid.
Journal ArticleDOI
A self-consistent mechanics of composite materials
TL;DR: In this article, the elastic moduli of two-phase composites are estimated by a method that takes account of the inhomogeneity of stress and strain in a way similar to the Hershey-Kroner theory of crystalline aggregates.
Book
An introduction to metal matrix composites
T.W. Clyne,Philip J. Withers +1 more
TL;DR: In this article, the Eshelby approach is used to model composites and a program for calculating the S-tensors of a composite model is presented, along with a list of programs for an Eshelbys calculation.
Journal ArticleDOI
Size effects in materials due to microstructural and dimensional constraints: a comparative review
TL;DR: In this article, the effects of size on predominantly mechanical properties of materials are reviewed at a first-order level, and important aspects can be understood from the point of view of the interaction of a characteristic length (which may be as diverse as the dislocation radius of curvature at a given stress or the magnetic exchange length) with a size parameter (grain or particle size, or film thickness).
Journal ArticleDOI
Elastic-plastic behaviour of polycrystalline metals and composites
TL;DR: Stress-strain curves of polycrystalline metals and composites using single crystal elastoplastic model as discussed by the authors were used to model the stress curve of composites.