Toughness enhancement in architecturally modified Al6061-5 vol.% SiC_p laminated composites

Abstract

Damage tolerance improvement in discontinuously reinforced aluminum matrix composites has been examined through both extrinsic and intrinsic approaches by researchers. In this study, extrinsic mechanism was considered in the form of architectural modification in laminates comprising two exterior layers of Al6061-5 vol.% SiCp and an interlayer of Al1050. Hot roll bonding was utilized to fabricate laminates since interfacial adhesion of layers was controlled by means of rolling strain. The interfacial strength and fracture resistance of specimens were examined by shear and three-point bending test, respectively. Achievements demonstrated that the quasi-static toughness of laminates tested in crack divider orientation was greater than that of monolithic samples. Also, it was revealed that the initiation, propagation, and total toughness were influenced by interfacial adhesion. In the other words, interfacial bonding played a major role in energy absorption during fracture. Enhancement of the interfacial adhesion by an increment in rolling strain elevated the energy consumed for emergence and growth of debonded area.

The role of ceramic particle loading and the influence of hot extrusion on the tribological behaviour of aluminium alloy-SiCp composites

“…Of the above, the tribological performance of the composite is of paramount concern for the components, namely, engine piston, cylinder liner, piston rings, and vehicle brakes, etc. 3,4 The above properties of the composite materials depend on the size, shape, loading of the particles, inter-particle spacing, and the particle-matrix interface. Besides, the thermodynamic stability of reinforcement, interfacial bonding strength at high temperature, has also got great importance in the selection of AMC for the automotive industry.…”

Delamination analysis in single-point incremental forming of steel/steel bi-layer sheet metal

“…Jing et al [17] has also indicated the same kind of effect of rolling thickness reduction on bond quality. Monazzah et al [18] found that micro-cracks available on surfaces to be bonded together facilitate the bonding process. The study further revealed that fracture toughness, bond strength and rolling thickness reduction have a direct relation.…”

Investigation of solution acidity influence on the morphological structure and physical and mechanical properties of particle-reinforced tungsten alloys

“…Monazzah et al [24] indicated that intrinsic toughening had influence on the fracture resistance of composite materials based on inherent resistance of its microstructure to crack nucleation. The microstructure includes the morphology and size of reinforced phase particle.…”