A Study on the Effect of Cryotreatment on Copper based Brass Alloys

Abstract

With the enhancement of research and innovation in manufacturing industry, there comes the high demand for alloy materials that possess high physical and mechanical properties. Copper based alloys have attracted much attention when it comes to physical properties because of heavy demand for high mechanical strength, high electrical conductivity and cost effective materials from industry fields. Pure copper is a ductile material, having excellence resistance to corrosion, and a very high conductivity (%IACS). Pure Cu is so soft that it can be drawn into wires because of its large grain size. It is evident from the literature, that by adding alloying elements, the strength of copper increases but at the cost of its other properties. The current study is an attempt to investigate the properties of the alloy after addition of brass to copper in various proportions and to carry out a deep cryogenic treatment to investigate the changes in the material’s property. The study reveals that Deep Cryogenic treated samples have high hardness with a slight reduction in tensile strength and % elongation as when compared to that of non-deep cryotreated samples.