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一种参考化物比率方法,用于解决原子探测器断层学实验中的Al/Fe峰值重叠

Aidar Zakirov¹, Yann Le Bouar², Frédéric Fossard²

¹Groupe de Physique des Matériaux UMR 6634, CNRS, INSA Rouen Normandie, Univ Rouen Normandie, 76000 Rouen, France.

Microscopy and microanalysis : the official journal of Microscopy Society of America, Microbeam Analysis Society, Microscopical Society of Canada

|May 13, 2025

概括

精确测量合金中的铁 (Fe) 度至关重要. 一种新的原子探头断层扫描方法通过解决重叠的质谱峰值来精确量化Al-Fe合金中的Fe.

科学领域:

材料科学材料科学材料科学
分析化学分析化学
金工业是金工业的一个方面.

背景情况:

精确的铁 (Fe) 度测量对于理解-铁 (Al-Fe) 合金的降水动力学和机械性质演变至关重要.
越来越多地使用回收金属,需要精确跟踪Al合金中的杂质,以评估它们对微观结构和性能的影响.
原子探头断层扫描 (APT) 提供了精确的组成测量,但在峰值识别和解卷化方面面临挑战,特别是与分子离子.

研究的目的:

开发一种方法来提高使用APT在Al-Fe合金中的Fe度测量的精度.
为解决复杂的峰值重叠问题在Al-Fe系统的质谱.
提供一种可靠的方法来量化Al合金中的Fe,特别适用于回收材料.

主要方法:

利用原子探头断层扫描 (APT) 进行高分辨率的组成分析.
开发了一种新的方法来解决Al-Fe合金质谱中的重叠峰值.
使用没有Fe干扰的标准材料来确定Al-化物形成比率.

主要成果:

在Al-Fe系统内的Fe同位素质量间隔中成功识别和解剖重叠的峰值.
从标准样本中量化了Al-化物形成比.
展示了一种提高Al-Fe合金中Fe度测量的精度的方法.

结论:

开发的方法通过精确地解决光谱干扰,有效地提高了Al-Fe合金中Fe度测量的精度.
这种技术对于描述回收的Al合金和了解Fe杂质的影响至关重要.
该方法为复杂的峰值重叠在多组件系统的APT分析中的挑战提供了实际解决方案.

关键词:

原子探测器断层扫描原子探测器断层扫描合金是合金中的一种.化物化物化物峰值分解分解的时间

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