600 °C 下断裂腐蚀后镍对铁铬镍合金腐蚀保护的影响

IF 7.4 1区材料科学 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY

Corrosion Science Pub Date : 2024-09-23 DOI:10.1016/j.corsci.2024.112473

A. Persdotter , H. Larsson , J. Eklund , S. Bigdeli , T. Jonsson

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引用次数: 0

摘要

对于许多在恶劣条件下工作的工业应用来说，不锈钢的断裂腐蚀仍然是一项挑战。金属部件的寿命通常取决于脱落后的腐蚀扩展。然而，有关断裂后形成的富铁氧化物保护特性的研究却很少。本研究通过系统地诱导最初形成的富含铬的保护性氧化物脱落，研究了镍对各种 Fe18CrxNi 模型合金脱落后保护性的影响。结果清楚地表明，镍含量越高，断裂后的保护能力越强，这是因为合金能够避免富含铁的 BCC 和尖晶石参与内部氧化。

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The influence of Nickel on the corrosion protection of FeCrNi alloys after breakaway corrosion at 600 °C

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The influence of Nickel on the corrosion protection of FeCrNi alloys after breakaway corrosion at 600 °C

Breakaway corrosion of stainless steels remains a challenge for many industrial applications operating in harsh conditions. The lifetimes of metallic components are often determined by the corrosion propagation after breakaway. Nevertheless, studies on the protective properties of the Fe-rich oxides formed after breakaway are scarce. This study investigates the influence of Ni on the protection after breakaway on a broad range of Fe18CrxNi model alloys, by systematically inducing breakaway of the initially formed protective, Cr-rich oxides. The results clearly demonstrate an improved protection after breakaway for higher Ni-contents, explained by the alloys’ ability to avoid internal oxidation involving Fe-rich BCC and spinel.

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来源期刊

Corrosion Science 工程技术-材料科学：综合

CiteScore

13.60

自引率

18.10%

发文量

763

审稿时长

46 days

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.