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通过磁铁喷射制备的Inconel 625涂料的多层结构

Jinghua Feng¹, Guangcui Yuan^2,3, Li Mao¹

¹Department of Mechanical, Aerospace, and Nuclear Engineering, Rensselaer Polytechnic Institute, Troy, New York 12180, USA.

Surface & coatings technology

|September 18, 2023

概括

研究人员使用X射线和中子反射计揭示了Inconel 625涂层的详细垂直结构. 他们确定了不同的亚层和表面氧化物层,这对于理解材料特性和提高耐腐蚀性至关重要.

科学领域:

材料科学材料科学材料科学
表面科学是一门学科.
纳米技术纳米技术

背景情况:

在Inconel 625涂料的接口和氧化物层显著影响材料性能,特别是耐腐蚀性.
由于实验的局限性,了解这些薄层的详细垂直结构是具有挑战性的.

研究的目的:

为了揭示由磁铁喷射制备的Inconel 625薄膜的多层结构.
用原子尺度分辨率来描述每个层的厚度和组成.

主要方法:

使用X射线反射计 (XRR) 和中子反射计 (NR) 来分析片的垂直结构.
这些技术允许确定层厚度和组成.

主要成果:

在主Inconel 625薄膜下面发现了一种~2nmCr丰富的Inconel亚层.
在主膜上观察到~2nm NiO 表面氧化物层.
在蓝宝石基板和Inconel膜之间检测到~2 Å的污染层,即使在清洗后.

结论:

这项研究为Inconel 625涂料的多层结构提供了原子规模的洞察力.
这些发现为未来的研究提供了指导,旨在提高这些涂料的耐腐蚀性.

关键词:

在Inconel 625合金涂层.进行X射线反射测量.涂层/基板接口接口氧化物层是一种氧化物层.

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