Oxidation Resistance of Co-10Cr-5Si Alloys in 1 Atm of Pure O2 at 700 and 800 OC

Hong Hua Zhang; Jun Huai Xiang; Gan Lan Yang; Wei Wang

doi:10.4028/www.scientific.net/AMR.311-313.732

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Experiment Study on Disrepair Principle for the Waved-Edge Milling Insert with Complex 3D Grooves
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Modeling and Experimental Study on Static Characteristic of BT Tool Holder-Spindle Interface
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Oxidation Resistance of Co-10Cr-5Si Alloys in 1 Atm of Pure O₂ at 700 and 800 ^OC
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Regression Analysis and Determination of Activity Coefficients of Cd-Pb Alloy
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Determination of Phase Transformation Point of New Type Ti-5Al-3.3V-8Mo-10Nb-1.0Zr-0.5Cr Alloy
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Research and Implementation on Variant Design Based on Product Assembly Model
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The Solute Redistribution during Solidification of Multi-Component Alloys
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Oxidation Resistance of Co-10Cr-5Si Alloys in 1 Atm of Pure O₂ at 700 and 800 ^OC

Abstract:

The kinetics and products of oxidation of ternary Co-10Cr-5Si alloys in 1 atm of pure O₂ at 700 and 800°C were investigated. The scales were composed of an outer CoO layer and an inner complex layer consisted of cobaltous oxide, Cr₂O₃ and SiO₂. Internal oxidation zones were found beneath the nodules formed at 800 °C. However, there was no internal oxidation zone present beneath the scales formed at 700°C.