Aspects of residual thermal stress/strain in particle reinforced metal matrix composites

Meijer, Garret; Ellyin, F.; Xia, Zihui

doi:10.1016/s1359-8368(99)00060-8

Cited by 97 publications

(59 citation statements)

References 16 publications

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“…3). That the specific shape of low aspect ratio reinforcements does not significantly influence the elastic properties of composite materials has been shown explicitly in the literature both by analytical [61] and numerical models [62][63][64]. The yield stress of the present composites exhibits a strong dependence on reinforcement size, Fig.…”

Section: Young's Modulus and Yield Stresssupporting

confidence: 58%

Influence of damage on the tensile behaviour of pure aluminium reinforced with ≥40 vol. pct alumina particles

et al. 2001

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Abstract-Particle reinforced composites are produced by infiltrating Al 2 O 3 particle beds with high purity Al (99.99%). These materials feature 40-60 vol. pct reinforcement homogeneously distributed in a pore-free matrix. Their tensile behaviour is studied as a function of reinforcement size and shape. Internal damage, in the form of particle fracture and matrix voiding, occurs from the onset of plastic straining. Its evolution with strain is monitored through changes in (i) stiffness and (ii) peak stress after incremental plastic straining and annealing. The influence of damage on the flow curves of the composites can be accounted for using basic postulates of continuum damage mechanics. Failure strains vary between 2 and 4%, and are a function of the rate of damage accumulation. An expression is derived to predict elongation to failure of damaging materials that fail by tensile instability, which gives good agreement with the experimental observations. 

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Section: Young's Modulus and Yield Stresssupporting

confidence: 58%

Influence of damage on the tensile behaviour of pure aluminium reinforced with ≥40 vol. pct alumina particles

et al. 2001

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“…The combined effects from: (i) thermal mismatch between the matrix (Mg) and the second phases (Cu/Mg 2 Cu); (ii) grain refinement; (iii) matrix work hardening/strain misfit due to the presence of second phase particulates; and (iv) non-basal slip system activation contribute to the mechanical properties enhancement, as reported elsewhere [40][41][42][43]. In addition, (v) the presence of harder Mg 2 Cu/Cu agglomerates and (vi) the efficiency of Mg 2 Cu/Cu in effective load transfer between Mg matrix [31], contribute to an appreciable improvement in strength properties.…”

Section: Influence Of Individual Nano-cu Additionmentioning

confidence: 88%

Influence of Micron-Ti and Nano-Cu Additions on the Microstructure and Mechanical Properties of Pure Magnesium

Seetharaman

Jayalakshmi

Gupta

2012

Metals

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Abstract:In this study, metallic elements that have limited/negligible solubility in pure magnesium (Mg) were incorporated in Mg using the disintegrated melt deposition technique. The metallic elements added include: (i) micron sized titanium (Ti) particulates with negligible solubility; (ii) nano sized copper (Cu) particulates with limited solubility; and (iii) the combination of micro-Ti and nano-Cu. The combined metallic addition (Ti + Cu) was carried out with and without preprocessing by ball-milling. The microstructure and mechanical properties of the developed Mg-materials were investigated. Microstructure observation revealed grain refinement due to the individual and combined presence of hard metallic particulates. The mechanical properties evaluation revealed a significant improvement in microhardness, tensile and compressive strengths. Individual additions of Ti and Cu resulted in Mg-Ti composite and Mg-Cu alloy respectively, and their mechanical properties were influenced by the inherent properties of the particulates and the resulting second phases, if any. In the case of combined addition, the significant improvement in properties were observed in Mg-(Ti + Cu) BM composite containing ball milled (Ti + Cu) particulates, when compared to direct addition of Ti and Cu particulates. The change in particle morphology, formation of Ti 3 Cu intermetallic and good interfacial bonding with the matrix achieved due to preprocessing, contributed to its superior strength OPEN ACCESSMetals 2012, 2 275 and ductility, in case of Mg-(Ti + Cu) BM composite. The best combination of hardness, tensile and compressive behavior was exhibited by Mg-(Ti + Cu) BM composite formulation.

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“…The material properties of the matrix were based on the commonly accepted values r 0 = 125 MPa, E = 71 GPa, E tan = 1.48 GPa from Refs. [12,13]. The values of cowper-symonds strain rate parameters (C = 6 500, P = 4) for alluminium alloy were taken form ANSYS/LS-DYNA manual [11].…”

Section: Materials Modelmentioning

confidence: 99%

Particle fracture and debonding during orthogonal machining of metal matrix composites

Pramanik

Zhang

2017

Adv. Manuf.

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This paper investigates the particle fracture and debonding during machining of metal matrix composite (MMC) due to developed stress and strain, and interaction with moving tool by finite element analysis. The machining zone was divided into three regions: primary, secondary and tertiary deformation zones. The tendency of particles to fracture in each deformation zone was investigated. The findings of this study were also discussed with respect to the experimental results available in the literature. It was found that particles at the cutting path in the tertiary deformation zone fractured as it interacted with tool. In the secondary deformation zone, particles interacted with other particles as well as cutting tool. This caused debonding and fracture of huge number of particles as those were moving up along the rake face with the chips. No particle fracture was noted at the primary deformation zone. The results obtained from finite element analysis were very similar to those obtained from experimental studies.

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Aspects of residual thermal stress/strain in particle reinforced metal matrix composites

Cited by 97 publications

References 16 publications

Influence of damage on the tensile behaviour of pure aluminium reinforced with ≥40 vol. pct alumina particles

Influence of damage on the tensile behaviour of pure aluminium reinforced with ≥40 vol. pct alumina particles

Influence of Micron-Ti and Nano-Cu Additions on the Microstructure and Mechanical Properties of Pure Magnesium

Particle fracture and debonding during orthogonal machining of metal matrix composites

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