TiAlTaSiN/TiAlTaSi multilayer coatings for enhancing hot salt corrosion fatigue resistance of TC11 Alloy

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

Corrosion Science Pub Date : 2025-08-25 DOI:10.1016/j.corsci.2025.113272

Kai Zhou, Daoxin Liu, Xiaohua Zhang, Yanjie Liu, Mengyao Li, Junnan Wu, Zhiqiang Yang

引用次数: 0

Abstract

This study investigates the effect of TiAlTaSiN/TiAlTaSi multilayer coatings with varying modulation periods on the hot salt corrosion fatigue (HSCF) behavior of TC11 alloy, and discusses the mechanisms by which the coatings enhance resistance to hot salt corrosion (HSC) and fatigue crack initiation. The results indicate that the 4-layer coated samples exhibit the highest resistance to HSC and HSCF among the three modulation period designs. The alternating structure of nanocrystalline ceramic and amorphous metal layers effectively prevents the diffusion of corrosive elements such as Cl and O into the substrate. The HSCF limit of the 4-layer coated sample is improved by 30.5 % compared to the uncoated substrate. Additionally, the multilayer coating's high toughness inhibits surface strain localization and suppresses dislocation slip at the surface, thereby delaying fatigue crack initiation.

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TiAlTaSiN/TiAlTaSi多层涂层增强TC11合金耐热盐腐蚀疲劳性能

研究了不同调制周期的TiAlTaSiN/TiAlTaSi多层涂层对TC11合金热盐腐蚀疲劳（HSCF）行为的影响，并探讨了涂层增强TC11合金抗热盐腐蚀（HSC）和疲劳裂纹萌生的机理。结果表明，在三种调制周期设计中，4层涂层样品具有最高的抗HSC和HSCF性能。纳米晶陶瓷层和非晶金属层的交替结构有效地防止了Cl和O等腐蚀性元素向衬底扩散。4层涂层样品的HSCF极限比未涂层样品提高了30.5% %。此外，多层涂层的高韧性抑制了表面应变局部化，抑制了表面位错滑移，从而延缓了疲劳裂纹的萌生。

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.