Oxidation Behavior of Ni-10Cr Alloy under the Compressive Stress at 900 ℃

C.H. Zhou, R.Y. Pan, H. Zhang, X.G. Guan

Abstract


Oxidation behavior of Ni-10Cr alloy was investigated in the presence of compressive stress at 900 ℃. Oxidation kinetics, measured by two methods, indicated a parabolic rate law. The applied compressive stress increased the growth of the oxide scale. Evolution of surface morphology of oxide scale revealed a serious of stress releasing forms during the oxidation proceeding. In spite of occasionally cracking and spalling generated, re-oxidation at the cracks and spallation appeared.

Keywords


high temperature oxidation, short-circuit diffusion, kinetics, Ni-Cr alloy, compressive stress


DOI
10.12783/dtetr/eeec2018/26886

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