Effect of Y/Pt modification on high-temperature corrosion resistance of NiAl coatings in the environment of NaCl-humid air

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

Corrosion Science Pub Date : 2025-05-02 DOI:10.1016/j.corsci.2025.113000

Qi Hu , Shujiang Geng , Xiying Niu , Jinlong Wang , Yuhan Huang , Fuhui Wang

引用次数: 0

Abstract

Y- and Pt-modified NiAl coatings were fabricated on the surfaces of Mar-M247 alloys. The corrosion behavior of the modified and unmodified NiAl coatings in NaCl-humid air at 750 °C was comparatively studied. The results indicated that both Y and Pt were effective in improving the corrosion resistance of the NiAl coating by enhancing the compactness and adhesion of the α-Al₂O₃ scale at the scale/coating interface as well as alleviating internal corrosion. In contrast, Pt modification was more remarkable. The mechanism for high-temperature corrosion resistance of Y- and Pt-modified NiAl coatings in the environment of NaCl-humid air was discussed.

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Y/Pt改性对nacl湿润空气环境下NiAl涂层耐高温腐蚀性能的影响

在Mar-M247合金表面制备了Y和pt改性NiAl涂层。比较研究了改性NiAl涂层和未改性NiAl涂层在750℃nacl湿润空气中的腐蚀行为。结果表明，Y和Pt均能通过增强α-Al2O3氧化膜在氧化膜/氧化膜界面的致密性和附着力，减轻内部腐蚀，从而有效提高NiAl涂层的耐蚀性。相比之下，Pt修饰更为显著。探讨了Y和pt改性NiAl涂层在nacl -湿空气环境下耐高温腐蚀的机理。

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.