Authors: Somrerk Chandraambhorn Nattapol Klubvihok
Publish Date: 2015/08/07
Volume: 85, Issue: 1-2, Pages: 103-125
Abstract
In the present work a tensile test method was used to investigate the adhesion of thermal oxide scale on low carbon steels oxidised in O2 containing 20 H2O at 850 °C for up to 120 s The mechanical adhesion energy was quantified and a theoretical framework was developed to investigate the factors affecting the quantification ie the residual stress and Young’s modulus of the oxide scale It was found that the quantified adhesion energies were in the range of 18–240 J m−2 When a higher value of the residual stress was used for the quantification the quantified mechanical adhesion energy was decreased to a critical value and afterwards turned to be higher because of the increased strain energy accumulated in the oxide due to the stress in the direction perpendicular to the tensile loading Furthermore when a higher value of Young’s modulus of the oxide was used for the quantification a higher quantified mechanical adhesion energy was obtainedThe acknowledgment is given to Thailand Toray Science Foundation for a research grant to S Chandraambhorn and to the Faculty of Engineering of King Mongkut’s University of Technology North Bangkok for the financial support to N Klubvihok Sahaviriya Steel Industries public company limited is acknowledged for providing the steels for the study
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