The influence of alloy composition on microstructure and tensile behaviour of copper-lead alloys
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Lead is a soft metal that possesses excellent antifriction and lubricating characteristics and is a desired addition to alloys which find use in friction-critical and low-load-bearing applications. The influence of alloy composition on microstructure, tensile properties and quasi-static fracture behaviour has been studied. Alloy composition, that is, lead content, was observed to have an influence on the size and distribution of lead globules in the copper matrix. The yield strength, ultimate tensile strength and elastic modulus of the alloy decreased with increase in lead content. The ductility of the alloys showed an improvement with increase in lead content. The influence of lead content on quasi-static fracture is discussed in detail.
KeywordsCopper Microstructure Tensile Strength Elastic Modulus Ductility
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