EFFECT OF VARYING CHEMICAL COMPOSITION ON MECHANICAL BEHAVIOUR OF FERROUS CAST PRODUCT

Abstract

This project is focused on effect of varying chemical composition on mechanical behavior of ferrous cast product. Ferrous materials occupy a significant position among engineering materials because of their chemical, physical and mechanical properties. In engineering applications, a suitable combination of these properties is required [8]. Mechanical properties have major role among the combination of chemical, physical and mechanical properties. Steel drives its mechanical properties from a combination of chemical composition, heat treatment and manufacturing processes. Although the major constituent of steel is iron yet the addition of very small quantities of alloy elements can have a marked effect upon the properties of steel. The strength of steel can be increased by the addition of alloy elements. However these alloy elements addition can also adversely affect other properties such as ductility and weld ability. Hence, the chemical composition for each steel balanced carefully and tested to ensure that the appropriate properties are achieved [9]. In this project, five important alloy elements such as manganese, chromium, nickel, carbon and molybdenum are selected to find the effect of these elements on mechanical behavior of alloy steel. To find the effect of any one element on mechanical properties of alloy steel, we cast a test piece with selected chemical composition and test the mechanical properties on this test piece. A reading “chemical composition v/s mechanical properties” is found. To find the second reading, a second test piece is casted with chemical composition slightly changing the alloy element their effects have been found. Again mechanical properties are tested and a second reading “chemical composition v/s mechanical properties” is found. In same manner five readings have been taken carefully and responses have been analyzed. This procedure is adopted for each five alloy elements to find the effects of these elements on mechanical properties of alloy steel. It has been observed that the mechanical properties have been found improved with alloying the test piece.