Microstructure response and LBE corrosion behavior of the FeCrAlY coating after Au-ions irradiation

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

Corrosion Science Pub Date : 2024-10-19 DOI:10.1016/j.corsci.2024.112521

Wei Zhang , Jiuguo Deng , Yilong Zhong , Hao Liu , Ziyao Long , Rongshuo Wang , Yudong Li , Guofeng Qu , Mingyang Zhou , Jijun Yang

引用次数: 0

Abstract

The microstructure and LBE corrosion behavior of the irradiated (up to 110 dpa) Fe15Cr11Al0.5Y coatings were investigated. The surface roughness and hardness increased with the irradiation dose. Irradiation induces grain growth, and the grown grains contain many dislocations, but no segregation and voids. Irradiation accelerates the corrosion rate of the coating, and the irradiated coatings suffer from serious inward non-uniform growth of the Al₂O₃ layer. The reaction of Al₂O₃ with PbO promoted the formation of the outermost PbAl₂O₄ of the irradiated coating. A “competitive mechanism” was proposed to explain the evolution of the corrosion behavior of the irradiated coatings.

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金离子照射后 FeCrAlY 涂层的微观结构响应和 LBE 腐蚀行为

研究了经过辐照（最高 110 dpa）的 Fe15Cr11Al0.5Y 涂层的微观结构和 LBE 腐蚀行为。表面粗糙度和硬度随辐照剂量的增加而增加。辐照诱导晶粒长大，长大的晶粒含有许多位错，但没有偏析和空隙。辐照加快了涂层的腐蚀速度，辐照涂层的 Al2O3 层严重向内不均匀生长。Al2O3 与 PbO 的反应促进了辐照涂层最外层 PbAl2O4 的形成。提出了一种 "竞争机制 "来解释辐照涂层腐蚀行为的演变。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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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.