Influence Of Heat Treatment Temperature On Mechanical Properties Of Heat Affected Zone (Haz)

Welding is used in ships, bridges, pressure vessels, industrial machinery, automobile, rolling stock and many other fields. The weldability of a metal is usually defined as its capacity to be welded into a specific structure that has certain properties and characteristics. The most common properties considered are hardness and ductility of the materials itself. The main objectives of this project are to know the effect of different temperature applied on the welded joint properties itself. Samples were thermally undergoing different heat treatment temperature ranging from 300oC, 400oC, 500oC, 600oC, 700oC and 800oC and the hardness profile was drawn through the BM, HAZ and FZ