DETERMINATION OF σ-OR M_(23)C_6-PHASE IN STAINLESS STEEL BY STEP POTENTIAL ETCHING CURRENT METHOD
MA Xiang Central Iron and Steel Research Institute;Ministry of Metallurgical Industry;Beijing
Cite this article:
MA Xiang Central Iron and Steel Research Institute;Ministry of Metallurgical Industry;Beijing. DETERMINATION OF σ-OR M_(23)C_6-PHASE IN STAINLESS STEEL BY STEP POTENTIAL ETCHING CURRENT METHOD. Acta Metall Sin, 1985, 21(4): 128-138.
Abstract A new method,namely,the step potential etching current mehtod for theindividual determination of σ-or M_(23)C_6-phase which is a difficult problem to sepa-rate each other by conventional chemical manner has been developed.This simpli-fied and rapid method easy to give certain information about the composition,con-tent and morphology of precipitated phases in the steel has been applied to stain-less steel samples.In addition,a formula for quantitative analysis was derived onthe basis of a new model of electrode process.The formula has been confirmedby experiments.
