A Two-Step Etchant to Reveal Grain Boundaries in Multiple Aluminum Alloys

A Two-Step Etchant to Reveal Grain Boundaries in Multiple Aluminum Alloys

This article reports on development of a versatile new technique that fills the need for grain etching in multiple aluminum alloy series. The procedure is a two-step etch that combines an attack etchant with a stain etchant to reveal grain structure of 2000, 5000, 6000, and 7000 series aluminum allo...

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Veröffentlicht in:Advanced materials & processes 2023-11, Vol.181 (8), p.14-17
Hauptverfasser: Papageorge, Wayne, Beach, Elvin, Janas, Greg
Format: Magazinearticle
Sprache:eng
Schlagworte:
Alloys
Aluminum alloys
Aluminum base alloys
Copper
Etchants
Etching
Friction stir welding
Grain boundaries
Grain structure
Laboratories
Microscopy
Optical microscopy
Reagents
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Beschreibung
Zusammenfassung:This article reports on development of a versatile new technique that fills the need for grain etching in multiple aluminum alloy series. The procedure is a two-step etch that combines an attack etchant with a stain etchant to reveal grain structure of 2000, 5000, 6000, and 7000 series aluminum alloys. This entry won the prestigious DuBose-Crouse Award for unique, unusual, and new techniques in microscopy at the 2022 International Metallographic Contest.
ISSN:0882-7958
2161-9425
DOI:10.31399/asm.amp.2023-08.p014