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通过深度分辨X射线吸收光谱观察到的不锈钢表面纳米至几十纳米区域的化学状态。

Chemical States of Stainless Steel in nm to Several Tens of nm Region from Surface Observed by the Depth-Resolved X-ray Absorption Spectroscopy.

作者信息

Amemiya Kenta, Sakata Kaoruho

机构信息

Institute of Materials Structure Science, High Energy Accelerator Research Organization, 1-1 Oho, Tsukuba, Ibaraki 305-0801, Japan.

Graduate Institute for Advanced Studies, SOKENDAI, 1-1 Oho, Tsukuba, Ibaraki 305-0801, Japan.

出版信息

ACS Omega. 2024 Apr 8;9(16):18593-18598. doi: 10.1021/acsomega.4c01226. eCollection 2024 Apr 23.

DOI:10.1021/acsomega.4c01226
PMID:38680374
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC11044215/
Abstract

Chemical states of Fe, Cr, Ni, Mn, and O in stainless steel, SS304, are nondestructively observed over a wide range of depth from nanometer (nm) to several tens of nm by means of the depth-resolved X-ray absorption spectroscopy in the soft X-ray region. It is revealed that Cr is more oxidized in the surface region than the inner region, while Fe is also oxidized at the surface though the oxidation is less prominent compared to Cr. The chemical states of Cr are described by a mixture of Cr-O and Cr-OH coordinations, with more OH components at the surface. Mn and Ni spectra show MnO and metallic Ni features, respectively, throughout the depth of at least up to several tens of nm.

摘要

通过软X射线区域的深度分辨X射线吸收光谱，在从纳米（nm）到几十纳米的广泛深度范围内，无损观察了不锈钢SS304中Fe、Cr、Ni、Mn和O的化学状态。结果表明，Cr在表面区域比内部区域更易被氧化，而Fe在表面也被氧化，尽管与Cr相比氧化不太明显。Cr的化学状态由Cr - O和Cr - OH配位的混合物描述，表面有更多的OH组分。在至少几十纳米的深度范围内，Mn和Ni光谱分别显示出MnO和金属Ni的特征。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1b42/11044215/98925519f841/ao4c01226_0007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1b42/11044215/92338d0f3853/ao4c01226_0001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1b42/11044215/032ec6bee30c/ao4c01226_0002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1b42/11044215/c06f51d4d1fa/ao4c01226_0003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1b42/11044215/7ff50b6cd6cb/ao4c01226_0004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1b42/11044215/217226ba11bc/ao4c01226_0005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1b42/11044215/eadd72ca4790/ao4c01226_0006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1b42/11044215/98925519f841/ao4c01226_0007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1b42/11044215/92338d0f3853/ao4c01226_0001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1b42/11044215/032ec6bee30c/ao4c01226_0002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1b42/11044215/c06f51d4d1fa/ao4c01226_0003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1b42/11044215/7ff50b6cd6cb/ao4c01226_0004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1b42/11044215/217226ba11bc/ao4c01226_0005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1b42/11044215/eadd72ca4790/ao4c01226_0006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1b42/11044215/98925519f841/ao4c01226_0007.jpg

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本文引用的文献

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Studying the onset of galvanic steel corrosionusing thin films: film preparation, characterization and application to pitting.
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2
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Rev Sci Instrum. 2017 Aug;88(8):083901. doi: 10.1063/1.4986146.
3
Sub-nm resolution depth profiling of the chemical state and magnetic structure of thin films by a depth-resolved X-ray absorption spectroscopy technique.利用深度分辨 X 射线吸收光谱技术对薄膜的化学状态和磁结构进行亚纳米分辨率深度剖析。
Phys Chem Chem Phys. 2012 Aug 14;14(30):10477-84. doi: 10.1039/c2cp41085k. Epub 2012 Jun 28.
4
First-principles atomistic study of surfaces of Fe-rich Fe-Cr.富铁 Fe-Cr 表面的第一性原理原子级研究
J Phys Condens Matter. 2011 Jul 6;23(26):265004. doi: 10.1088/0953-8984/23/26/265004. Epub 2011 Jun 6.