Cyclic oxidation to high temperature of ASTM - A53 grade B

2nd Colombian Congress of Electrochemistry; 2nd Symposium on Nanoscience and Nanotechnology

物理学;化学

Pérez, D.^1 ; Marulanda, J.L.^1 ; Santos, A.^2

Universidad Tecnológica de Pereira, Pereira, Colombia^1

Universidad Pontificia Bolivariana, Bucaramanga, Colombia^2

关键词: Corrosive environment;    Cyclic oxidation;    Energy dispersive spectroscopies (EDS);    Exposed to;    High temperature;    Oxidation cycle;    Protective oxides;    Steel grades;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/786/1/012035/pdf
DOI  :  10.1088/1742-6596/786/1/012035

来源: IOP

【 摘 要 】

Samples of ASTM A53 steel grade B underwent 500 oxidation cycles at 600°C. Scanning Electron Microscopy (SEM), Energy Dispersive Spectroscopy (EDS) and X-Ray Diffraction (XRD) were performed to study the morphology, composition and phase structure of Fe2O3y Fe3O4layers on oxidation surface. Such layers were homogenous and poorly adhesive. Mass loss was significant due to absence of protective oxides and inevitable flaking, leaving the substrate exposed to corrosive environment.