A. C. ELECTROETCHING OF AUSTENITIC STAINLESS STEELS FOR THE METALLOGRAPHIC DIFFERENTIATION OF DELTA FERRITE.

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作者：
Mor, Emanuele
Carlini, Alessandrina
Scotto, Vittoria
Traverso, Eugenio
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Praktische Metallographie/Practical Metallography | 1973年 / 10卷 / 05期
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摘要：
Comparison of the results of ac and dc etching shows that ac etching accelerates the solution of metal in acid solution and enhances phase contrast by formation of colored passivating films in neutral and alkaline solutions. The mechanism of the effects is investigated, and a close relation between pH of the etchant and ac potential is demonstrated theoretically and experimentally.
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页码：269 / 281
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