Investigation Of Inter Material Shear Properties Of Iron And Stannum

Abidin, Roziah (2008) Investigation Of Inter Material Shear Properties Of Iron And Stannum. Project Report. UTeM, Melaka, Malaysia. (Submitted)

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Abstract

In this paper, an optimized active metal Iron (SS) to Stannum alloy (Sn) joint is examined. Beside that, the purpose of doing this project is to study the shear properties between two different metals. The important of shear properties are primarily used in the design of mechanically fastened components, webs, and torsion members, and other components subject to parallel, opposing loads. Shear properties are dependant on the type of shear test and is a variety of different standard shear tests that can be performed including the single-shear test. The differences of two metal couples at the test surface roughness of on the microstructural developments across the joint region are investigated. Mechanical characterization by means of shear tests as well as fracture toughness measurements at ambient temperature are employed, which show that the obtained values are above those of the reference joint that has been used so far. The phases occurring at the interface region and the fracture surface of the optimized joint are investigated in detail to explain the improved mechanical behavior. The composition and the morphology at the interface region are analyzed by means of Scanning Electron Microscope (SEM). The results shows that inter metallic composite occur at the interface for both aluminium and stanum matrix, however, it is clear for aluminium due to high temperature melting point of aluminium. Rough surface give of the reinforcing material improves the mechanical interlocking at the interface, though the contribution of the resulting interfacial shear strength is secondary compared to chemical bonding. Results also show that different materials will give different ultimate shear strength for the composite.

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