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Why is EXAFS for complex concentrated alloys so hard? Challenges and opportunities for measuring ordering with X-ray absorption spectroscopy

Published

Author(s)

Howie Joress, Bruce D. Ravel, Elaf Anber, Jonathan Hollenbach, Debashish Sur, Mitra Taheri, Brian DeCost

Abstract

Short-range order (SRO) is a critical driver of properties (e.g., corrosion resistance and tensile strength) in multicomponent alloys such as complex concentrated alloys (CCAs). Extended X-ray absorption fine structure (EXAFS) is a powerful technique well suited for quantifying this SRO. Here, we described in detail the characteristics of CCAs that make the already challenging task of analyzing EXAFS data even more difficult. We then illustrate novel paths toward robust and scalable quantitative SRO analysis that will accelerate the scientific understanding and development of CCAs.
Citation
Matter
Volume
6
Issue
11

Keywords

X-ray absorption spectroscopy high-entropy alloys EXAFS short-range order local structure

Citation

Joress, H. , Ravel, B. , Anber, E. , Hollenbach, J. , Sur, D. , Taheri, M. and DeCost, B. (2023), Why is EXAFS for complex concentrated alloys so hard? Challenges and opportunities for measuring ordering with X-ray absorption spectroscopy, Matter, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=936372 (Accessed June 25, 2024)

Issues

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Created October 16, 2023, Updated November 9, 2023