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Microstructure classification and the polycrystalline microstructure state space

delete2025-06-18
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PRE
AI
D
D.V. Miley
E
Ethan Suwandi
B
Benjamin Schweinhart
J
Jeremy K. Mason *
DOI:10.1016/j.actamat.2025.121219delete
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Abstract

Abstract

En 中文
A cornerstone of materials science is that material properties are determined by their microstructure. While the community has already developed a wide variety of approaches to describe microstructure, most of these are tailored to specific material systems or classes. This work proposes a way to quantitatively measure the similarity of microstructures based on the geometry of the grain boundary network, a feature which is fundamental to and characteristic of all polycrystalline materials. Specifically, a distance on all single-phase polycrystalline microstructures is proposed such that two microstructures that are close with regard to the distance have grain boundary networks that are statistically similar in all geometric respects below a user-specified length scale. Given a pair of micrographs, the distance is approximated by sampling windows from the micrographs, defining a distance between pairs of windows, and finding a window matching that minimizes the sum of the pairwise window distances. The approach is used to compare a variety of synthetic microstructures and to develop a procedure to query a proof-of-concept database suitable for general single-phase polycrystalline microstructures.
Keywords:
Microstructure
Grain boundaries
Wasserstein metric

Journal

Acta Materialia cover
Acta Materialia
IF:
9.3
Papers:
2.0W
Citations:
12.9W

Organization

G
George Mason University
Scholars:
7.7K
Papers: 7.9K
Citations: 1.0W
U
university of california
Scholars:
1.9W
Papers: 8.0K
Citations: 10
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