Patience Alone is not Enough – A Guide for the Preparation of Low-Defect Sections from Pure Copper
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S. M. Lößlein
Sarah Marie Lößlein finished her studies in Materials Science and Engineering at Saarland University in 2020. Since 2015 she has been working at the Chair of Functional Materials focusing on steel characterization and surface functionalization by Direct Laser Interference Patterning. Since November 2020 she is a scientific assistant working on the wetting behavior of metallic surfaces.
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M. Kasper
Michael Kasper completed an apprenticeship as a materials tester specialising in metal technology. Afterwards, he completed technical school to become a state-certified materials technician. He has been the metallographer of the Chair of Functional Materials at Saarland University since 2020. As an SBB scholarship holder, Michael Kasper is studying materials science and engineering at Saarland University part-time.
Abstract
The preparation of metallographic sections from soft metals such as pure copper constitutes a particular challenge: the high degree of ductility promotes the formation of preparation artifacts and complicates the preparation of homogeneous, low-deformation surfaces. A metallographic preparation routine is therefore presented which has proven effective for pure copper and which can also be applied to additionally soft annealed samples. The subsequent removal of fine crystalline deformation layers is discussed and different setups for electropolishing and its optimization are presented.
Kurzfassung
Weiche Metalle, wie Reinkupfer, stellen eine besondere Herausforderung in der metallographischen Schliffpräparation dar: Die hohe Duktilität fördert die Entstehung von Präparationsartefakten und erschwert die Anfertigung deformationsarmer homogener Oberflächen. Vorgestellt wird daher eine metallographische Präparationsroutine, die sich für Reinkupfer bewährt hat und auch auf zusätzlich weichgeglühte Proben übertragbar ist. Die anschließende Entfernung feinkristalliner Deformationsschichten wird diskutiert und verschiedene Aufbauten zur Elektropolitur und deren Optimierung werden vorgestellt.
About the authors
Sarah Marie Lößlein finished her studies in Materials Science and Engineering at Saarland University in 2020. Since 2015 she has been working at the Chair of Functional Materials focusing on steel characterization and surface functionalization by Direct Laser Interference Patterning. Since November 2020 she is a scientific assistant working on the wetting behavior of metallic surfaces.
Michael Kasper completed an apprenticeship as a materials tester specialising in metal technology. Afterwards, he completed technical school to become a state-certified materials technician. He has been the metallographer of the Chair of Functional Materials at Saarland University since 2020. As an SBB scholarship holder, Michael Kasper is studying materials science and engineering at Saarland University part-time.
Acknowledgement
The authors would like to thank for the financial support by the German Research Foundation (Deutsche Forschungsgemeinschaft, DFG) in the project “Einfluss von Oberflächentopograpie and -chemie auf das Benetzungsverhalten lasterstrukturierter, metallischer Oberflächen” (Impact of the surface topography and chemistry on the wetting behavior of laser structured metallic surfaces) (435334669) and for the finiancial support by the European Fund for Regional Development (EFRE) (Greater Region Interreg, project: “Pulsatec”). We would like to thank Mr. Yannik Steimer (OST, Eastern Switzerland University of Applied Sciences) for giving us numerous hints with regard to the preparation and Mr. Tobias Fox for proofreading the manuscript.
Danksagung
Die Autoren bedanken sich für die Förderung durch die Deutsche Forschungsgemeinschaft (DFG) in dem Projekt „Einfluss von Oberflächentopograpie und -chemie auf das Benetzungsverhalten lasterstrukturierter, metallischer Oberflächen“ (435334669) und für die Förderung aus Mitteln des Europäischen Fonds für regionale Entwicklung (EFRE, Interreg Großregion, Projekt: „Pulsatec“). Wir danken Herrn Yannik Steimer (OST – Ostschweizer Fachhochschhule) für die zahlreichen Hinweise zur Präparation und Herrn Tobias Fox für das Korrekturlesen des Manuskripts.
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© 2021 Walter de Gruyter GmbH, Berlin/Boston, Germany
Artikel in diesem Heft
- Contents
- Editorial
- Patience Alone is not Enough – A Guide for the Preparation of Low-Defect Sections from Pure Copper
- Scale-bridging Microstructural Analysis – A Correlative Approach to Microstructure Quantification Combining Microscopic Images and EBSD Data
- Pigment Analysis Using Techniques from the Field of Materials Science – a Contribution to the Restoration of the “Frankfurt Kitchen”
- Metallography and Biomimetics – Or New Surfaces Without Chemistry?
- What can Günter Petzow's tetrahedron mean now?
- Picture of the Month
- Picture of the Month
- People
- Congratulations, dear Petz: Herzlichen Glückwunsch, lieber Petz!
- Meeting Diary
- Meeting Diary
Artikel in diesem Heft
- Contents
- Editorial
- Patience Alone is not Enough – A Guide for the Preparation of Low-Defect Sections from Pure Copper
- Scale-bridging Microstructural Analysis – A Correlative Approach to Microstructure Quantification Combining Microscopic Images and EBSD Data
- Pigment Analysis Using Techniques from the Field of Materials Science – a Contribution to the Restoration of the “Frankfurt Kitchen”
- Metallography and Biomimetics – Or New Surfaces Without Chemistry?
- What can Günter Petzow's tetrahedron mean now?
- Picture of the Month
- Picture of the Month
- People
- Congratulations, dear Petz: Herzlichen Glückwunsch, lieber Petz!
- Meeting Diary
- Meeting Diary
