INVESTIGATION ON HOT TENSILE DEFORMATION BEHAVIOUR OF FRICTION WELDED DISSIMILAR JOINTS OF INCONEL 600 WITH AISI 304L AUSTENITIC STAINLESS STEEL
Keywords:Friction welding, Inconel 600, 304L austenitic stainless steel, Dissimilar Joints, hot tensile properties
With the help of continuous drive friction welding process, the dissimilar joints of Inconel 600 with 304L austenitic stainless steel were fabricated. Hot tensile properties of these joints were evaluated by hot tensile test at the temperature range of 25ºC– 600ºC and strain rate of 0.001× s-1 as per ASTM E21 standard. The results showed that the highest ultimate tensile strength of 487MPa was achieved at the temperature of 300º C for smooth specimen whereas the lowest ultimate tensile strength of 437MPa was achieved at the temperature of 600ºC. The micro structural characteristics, micro hardness variations and fracture surface anlaysis were carried out to understand the deformation behaviour of friction welded dissimilar joints of Inconel 600 and AISI 304L stainless steel.
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