Interphase effect on the strengthening behavior of particle-reinforced metal matrix composites

• Published in: Computational materials science Vol. 41; no. 2; pp. 145 - 155
• Main Authors: Zhang, W.X., Li, L.X., Wang, T.J.
• Format: Journal Article
• Language: English
• Published: Amsterdam Elsevier B.V 01.12.2007; Elsevier Science
• Subjects: Applied sciences; Dispersion hardening metals; Elasticity. Plasticity; Exact sciences and technology; Finite element analysis (FEA); Interphase; Mechanical properties and methods of testing. Rheology. Fracture mechanics. Tribology; Metal matrix composites (MMCs); Metals. Metallurgy; Plastic deformation; Powder metallurgy. Composite materials; Production techniques; Strength; Plastic deformation; Interphase; Metal matrix composites (MMCs); Strength; Finite element analysis (FEA); Strengthening; Metal matrix composite; Composite material; Dispersion strengthened metal; Thickness; Finite element method; Plasticity; Stiffness
• ISSN: 0927-0256; 1879-0801
• DOI: 10.1016/j.commatsci.2007.03.011

Interphase effect on the strengthening behavior of particle-reinforced metal matrix composites is numerically investigated, in which the stiffness, thickness and debonding location of interphase are considered. Embedded cell model and finite element method are used in analysis. The numerical results indicate that hard and soft interphases result in the increase and significant decrease of the strength of composite, respectively. Location of debonding has quite different effects. Pole debonding results in a remarkable decrease of the overall strength of composite, while equator debonding results in a slight decrease of the strength of composite. Debonding between the interphase and matrix has more significant effect than that between the interphase and particle.