Creep deformation of induction pressure welded 2·25Cr-1Mo steel |
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| Authors: | S Ahila S Ramakrishna Iyer and V M Radhakrishnan |
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| Affiliation: | Indian Institute of Technology, Madras 600 036, India |
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| Abstract: | In this paper, experimental results involving the effect of stress and temperature on creep behaviour of induction pressure welded (IPW) 2·25Cr-1Mo steel are presented. Creep rupture tests were conducted at 550–700°C in steps of 50°C over a stress range of 112·5–180 MPa. Above 650°C failure of the specimen was enhanced due to the microstructural instability. Failure in the specimens occurred invariably in the heat affected zones (HAZ), and the fracture surfaces indicated ductile failure. |
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