Chongchong Tang, Björn Schäfer, Carsten Schroer, Bronislava Gorr
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引用次数: 0
Abstract
The oxidation behavior and microstructural evolution of M–20Cr–20Ta (M: Ni, Fe, Co) alloys are investigated at 1000°C and 1200°C in Ar–20 vol% O2. High-temperature oxidation results in growth of bi-layered oxide scales, featuring an outer Cr₂O₃ layer and an inner Cr–Ta oxide layer. The Cr–Ta oxide layer consists of two distinct phases: CrTaO₄ and CrTa₂O₆. Significant improvements in oxidation resistance are found for Co and Fe alloys, in consequence of formation of the Cr–Ta oxides. At 1200°C, oxidation kinetics approach a cubic growth law after an initial transient stage, underscoring the exceptional protective capabilities of the Cr–Ta oxides.
期刊介绍：
Corrosion occurrence and its practical control encompass a vast array of scientific knowledge. Corrosion Science endeavors to serve as the conduit for the exchange of ideas, developments, and research across all facets of this field, encompassing both metallic and non-metallic corrosion. The scope of this international journal is broad and inclusive. Published papers span from highly theoretical inquiries to essentially practical applications, covering diverse areas such as high-temperature oxidation, passivity, anodic oxidation, biochemical corrosion, stress corrosion cracking, and corrosion control mechanisms and methodologies.
This journal publishes original papers and critical reviews across the spectrum of pure and applied corrosion, material degradation, and surface science and engineering. It serves as a crucial link connecting metallurgists, materials scientists, and researchers investigating corrosion and degradation phenomena. Join us in advancing knowledge and understanding in the vital field of corrosion science.
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