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EDS-PhaSe: Phase Segmentation and Analysis from EDS Elemental Map Images Using Markers of Elemental Segregation

Journal Article · · Metallography, Microstructure and Analysis
 [1];  [2];  [3];  [3];  [4];  [1]
  1. Indian Inst. of Technology (IIT), Ropar (India)
  2. National Physical Laboratory (CSIR) (India). National Metallurgical Lab.
  3. Ames Laboratory (AMES), Ames, IA (United States)
  4. Indian Inst. of Technology (IIT), Madras (India)
+ Show Author Affiliations

Scanning electron microscopy (SEM), combined with energy-dispersive spectroscopy (EDS), is an extensively used technique for in-depth microstructural analysis. Here, we present the EDS-Phase Segmentation (EDS-PhaSe) tool that enables phase segmentation and phase analysis using the EDS elemental map images. Importantly, it converts the EDS map images into estimated composition maps for calculating markers of selective elemental redistribution in the scanned area and creates a phase-segmented micrograph while providing approximate fraction and composition of each identified phase. EDS-PhaSe offers two unique advantages. Firstly, it enables the direct processing of EDS elemental map images without requiring any raw or proprietary data/software, thereby allowing the analysis of EDS results available in the published literature as images. Secondly, it enables segmentation and analysis of phases even when the phase contrast is missing in backscattered micrographs, assisting in correlating the XRD and SEM-EDS data as shown in this work for a AlCoCrFeNi high-entropy alloy.

Research Organization:
Ames Laboratory (AMES), Ames, IA (United States)
Sponsoring Organization:
USDOE Office of Science (SC); USDOE Office of Fossil Energy and Carbon Management (FECM)
Grant/Contract Number:
AC02-07CH11358
OSTI ID:
2234285
Report Number(s):
IS-J--11,204
Journal Information:
Metallography, Microstructure and Analysis, Journal Name: Metallography, Microstructure and Analysis Journal Issue: 6 Vol. 12; ISSN 2192-9262
Publisher:
SpringerCopyright Statement
Country of Publication:
United States
Language:
English

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36 MATERIALS SCIENCE
EDS
elemental segregation
energy dispersive spectroscopy
phase analysis
phase segmentation