Development of a Two-Stage Etching Procedure for Grain Analysis of Intermetallic Iron Aluminides (Fe-Al-Ta)
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E. Schaberger-Zimmermann
Elke Schaberger-Zimmermann since 1990 head of the metallography department of Foundry Institute RWTH Aachen and Access e. V.. Besides training of students in metallographic preparation methods, the main activity is the development of new preparation routes for innovative metallic alloys for SEM/EDS/EBSD analysis, and especially the creation of phase-selective color etching techniques for optical image analysis.René Daniel Pütz up until 2018 studied Materials Engineering at the RWTH Aachen University. Within this time, he took part in the Erasmus+ program and spent six months at the Norwegian University of Science and Technology (NTNU) in Trondheim. Since March 2018, he is a scientific assistant at the Chair of Corrosion and Corrosion Protection of the RWTH Aachen University and works on the high temperature corrosion behavior of iron aluminides.
,
E. Subašić
Abstract
The present work will introduce a novel two-step etching procedure for grain analysis of intermetallic iron aluminides. A grain boundary etching technique from the literature will be complemented by subsequent grain-contrast etching to visualize different grains in polarized light. The use of an XY-table for the acquisition of MosaiX images also enables grain analysis over the entire cross-section of the sample.
Kurzfassung
In der vorliegenden Arbeit wird ein neues zweistufiges Ätzverfahren zur Kornanalyse von intermetallischen Eisenaluminiden vorgestellt. Aufbauend auf einer Korngrenzenätzung aus der Literatur, wird eine nachgeschaltete Kornflächenätzung durchgeführt, um die verschiedenen Körner unter polarisiertem Licht zu visualisieren. Die Verwendung eines XY-Tisches zur Aufnahme von MosaiX-Bildern erlaubt zudem die Kornanalyse über den vollständigen Probenquerschnitt.
About the authors
Elke Schaberger-Zimmermann since 1990 head of the metallography department of Foundry Institute RWTH Aachen and Access e. V.. Besides training of students in metallographic preparation methods, the main activity is the development of new preparation routes for innovative metallic alloys for SEM/EDS/EBSD analysis, and especially the creation of phase-selective color etching techniques for optical image analysis.
René Daniel Pütz up until 2018 studied Materials Engineering at the RWTH Aachen University. Within this time, he took part in the Erasmus+ program and spent six months at the Norwegian University of Science and Technology (NTNU) in Trondheim. Since March 2018, he is a scientific assistant at the Chair of Corrosion and Corrosion Protection of the RWTH Aachen University and works on the high temperature corrosion behavior of iron aluminides.
Acknowledgements
The authors would like to collectively thank the Federal Ministry for Economic Affairs and Energy (BMWi, Bundesministerium für Wirtschaft und Energie) for funding [03ET7077B] & [03ET7077A].
Danksagung
Die Autoren bedanken sich gemeinsam für die finanzielle Förderung beim Bundesministerium für Wirtschaft und Energie (BMWi) [03ET7077B] & [03ET7077A].
References / Literatur
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Articles in the same Issue
- Contents
- Editorial
- Development of a Two-Stage Etching Procedure for Grain Analysis of Intermetallic Iron Aluminides (Fe-Al-Ta)
- Metallographic Preparation of Single Powder Particles
- Research on Microstructural and Performance Evolution of IN783 Bolt in Service
- Failure analysis
- Liquation Cracking in a Row 1 Turbine Vane
- Picture of the Month
- Picture of the Month
- People
- Heinz-Hubert Cloeren
- PM-News
- PM-News
- Meeting Diary
- Meeting Diary
Articles in the same Issue
- Contents
- Editorial
- Development of a Two-Stage Etching Procedure for Grain Analysis of Intermetallic Iron Aluminides (Fe-Al-Ta)
- Metallographic Preparation of Single Powder Particles
- Research on Microstructural and Performance Evolution of IN783 Bolt in Service
- Failure analysis
- Liquation Cracking in a Row 1 Turbine Vane
- Picture of the Month
- Picture of the Month
- People
- Heinz-Hubert Cloeren
- PM-News
- PM-News
- Meeting Diary
- Meeting Diary
