Less is sometimes more – some examples of the reduction of hazardous substances in metallographic etching
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H. Schnarr
Holger Schnarr born in Thuringia in 1965. After completing his apprenticeship at a nuclear power plant and his military service, he studied materials engineering at Otto von Guericke University in Magdeburg. In 1995, he completed his doctorate at the Fraunhofer Institute for Mechanics of Materials in Halle/S. After working in various branches of industry, he joined Struers GmbH in Willich as laboratory manager in 2004. He is head of the working group “Sample Preparation” of the DGM since 2007.
Abstract
In metallography, the choice of the right etchant is crucial for visualizing the microstructure. As conventional etching agents generally contain a more or less high proportion of hazardous substances that need to be reduced in the future, examples are given of how this reduction is possible in principle. This reduction in hazardous substances is mainly achieved through microscopy contrasts, dilution of etching solutions and electrolytic etching.
Kurzfassung
In der Metallographie hat die Wahl der richtigen Ätzung eine entscheidende Bedeutung zur Sichtbarmachung der Gefügestruktur. Da konventionelle Ätzmittel in der Regel einen mehr oder minder hohen Anteil an Gefahrstoffen aufweisen, die es zukünftig zu reduzieren gilt, werden Beispiele aufgezeigt, wie diese Reduzierung prinzipiell möglich ist. Hauptsächlich wird diese Gefahrstoffreduzierung über Mikroskopiekontraste, Verdünnung von Ätzlösungen und elektrolytisches Ätzen erreicht.
About the author
Holger Schnarr born in Thuringia in 1965. After completing his apprenticeship at a nuclear power plant and his military service, he studied materials engineering at Otto von Guericke University in Magdeburg. In 1995, he completed his doctorate at the Fraunhofer Institute for Mechanics of Materials in Halle/S. After working in various branches of industry, he joined Struers GmbH in Willich as laboratory manager in 2004. He is head of the working group “Sample Preparation” of the DGM since 2007.
References / Literatur
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© 2024 Walter de Gruyter GmbH, Berlin/Boston, Germany
Articles in the same Issue
- Contents
- Editorial
- Editorial
- Less is sometimes more – some examples of the reduction of hazardous substances in metallographic etching
- Potential applications for modified Klemmsolutions
- Collaborative experiment of the work group “Sample Preparation” on the subject “Reduction of hazardous substances in metallographic etching using electrolytic etching techniques”
- Picture of the Month
- Picture of the Month
- News
- News
- Meeting Diary
- Meeting Diary
Articles in the same Issue
- Contents
- Editorial
- Editorial
- Less is sometimes more – some examples of the reduction of hazardous substances in metallographic etching
- Potential applications for modified Klemmsolutions
- Collaborative experiment of the work group “Sample Preparation” on the subject “Reduction of hazardous substances in metallographic etching using electrolytic etching techniques”
- Picture of the Month
- Picture of the Month
- News
- News
- Meeting Diary
- Meeting Diary
