Wetting agents in metallography

Wetting agents, also known as surfactants or surface-active agents, have been used by metallographers to modify etching speed or selectivity. Zephiran chloride, for example, is added to picral to increase etch speed and to etheral-picral solutions to aid in the detection of temper embrittlement. Oth...

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Bibliographic Details
Published in:Materials characterization 1995-09, Vol.35 (2), p.135-137
Main Author: Voort, G.F.Vander
Format: Article
Language:English
Subjects:
Cross-disciplinary physics: materials science
rheology
Exact sciences and technology
Materials science
Other topics in materials science
Physics
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Summary:Wetting agents, also known as surfactants or surface-active agents, have been used by metallographers to modify etching speed or selectivity. Zephiran chloride, for example, is added to picral to increase etch speed and to etheral-picral solutions to aid in the detection of temper embrittlement. Other wetting agents, mainly sodium tridecylbenzene sulfonate, have been added to aqueous saturated picric acid to reveal prior-austenite grain boundaries. This short communication reviews studies of wetting agents for modifying etch behavior, describes the nature of wetting agents, and lists some manufacturing sources.
ISSN:1044-5803
1873-4189
DOI:10.1016/1044-5803(95)80111-1