Oxidation of Inconel 690 Alloys at 800-1000°C in Air

Soon Yong Park; Dong Bok Lee

doi:10.4028/www.scientific.net/AMM.607.7

Paper Titles

Conversion of Strontium Hydroxyapatite Nanopowders to Porous Scaffolds for Bone Implant Application
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Oxidation of Inconel 690 Alloys at 800-1000°C in Air
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Effects of TiC/TiN Contents and Sintering Temperatures on Microstructure and Mechanical Properties of Al₂O₃/Ti(C,N) Ceramic Materials
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Residual Life Prediction for In-Service Pressure Vessels Containing Crack Defects
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Gases Effects for Synthesis ZnO Nanostructures Using Carbon Assisted
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Numerical-Experimental Comparison to Validate a Mathematical Model for the Determination of the Superplastic Material Constants
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Mathematical Modelling to Evaluate the Superplastic Material Constants by Bulge Test
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Corrosion Behavior of Electrodeposited CoNiFe Nanoparticles Immersed in Different Environments
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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vol. 607Oxidation of Inconel 690 Alloys at 800-1000°C in...

Oxidation of Inconel 690 Alloys at 800-1000°C in Air

Abstract:

The Ni-based superalloy, Inconel 690, was oxidized between 800 and 1000°C for up to 300 h in air. It displayed good oxidation resistance, because the formed scales consisted primarily of Cr₂O₃. As the oxidation progressed, CrMn_1.5O₄ also formed on the surface through the ensuing outward diffusion of Mn from the alloy. Internal oxidation occurred below the scale-alloy interface along grain boundaries of the matrix.