Author : Sunil Chauhan and Pankaj Chandna

Titanium present in the earth’s crust at a level about 0.6% and is therefore the fourth most abundant structural metal after aluminum, iron, and magnesium. High strength, low density, and excellent corrosion resistance are the main properties that make titanium attractive for a variety of applications. The major application of the material is production of airframes, engine components, steam turbine blades, superconductors, missiles etc. The titanium has good corrosion resistance which makes it excellent use in marine services, chemical, petrochemical, electronics, biomedical industries. Titanium and its alloys are among the most difficult materials to machine, mainly because of the metal reactivity at medium to high temperatures, from which a tendency to weld to the tool while machining leads to chipping and premature tool failure. Additionally, its low heat conductivity increases the temperature at the tool-workpiece interface. Finally, the low elastic modulus of Ti allows relatively large deflections of the workpiece, which affect adversely the tool life. In this paper we mainly study the effect of annealing (heat treatment ) on the mechanical properties of materials Mild Steel , Stainless Steel and Titanium But our main focus will be on titanium material . The other two materials are studied for the comparison of mechanical properties of the materials with the titanium. Here the effect of heat treatment on the mechanical properties of the materials is found out by comparing the results obtained in the Universal Testing Machine ( UTM ) , Hardness Testing , Scanning Electron Microscope (SEM) for the both the Non Heat Treated Specimens and Heat Treated Specimens .

Keywords: Scanning electron microscope , heat treatment , annealing , steels , titanium , tensile testing , vickers hardness testing

Article published in International Journal of Current Engineering and Technology, Vol.7, No.3 (June-2017)