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dc.contributor.authorMatula, Martin
dc.contributor.authorHyspecká, Ludmila
dc.contributor.authorSvoboda, Milan
dc.contributor.authorVodárek, Vlastimil
dc.contributor.authorDagbert, Catherine
dc.contributor.authorGalland, Jacques
dc.contributor.authorStonawská, Zuzana
dc.contributor.authorTůma, Luděk
dc.identifier.citationMaterials Characterization. 2001, vol. 46, issues 2-3, p. 203-210.en
dc.relation.ispartofseriesMaterials Characterizationen
dc.subjectaustenitic stainless steel AISI 316Len
dc.subjectdegree of sensitization to intergranular corrosionen
dc.subjectcarbide precipitation; chromium-depleted zonesen
dc.subjectSL-EPR and DL-EPR testsen
dc.subjectoxalic acid etch test (ASTM A 262-A)en
dc.subjectquantitative metallographyen
dc.subjectstatistical normalizationen
dc.titleIntergranular corrosion of AISI 316L steelen
dc.identifier.locationNení ve fondu ÚKen
dc.description.abstract-enThe degree of sensitization (DOS) of austenitic stainless steel AISI 316L to intergranular corrosion (IGC) was determined by means of electrolytic etching in oxalic acid and electrochemical potentiokinetic reactivation (EPR) tests completed by metallographic inspection. An analytical electron microscope, equipped with an energy-dispersive X-ray spectrometer, was used to examine the microstructure of the steel investigated, which had been annealed for 3.60 x 10(4) to 1.91 x 10(7) s at a temperature of 650 degreesC. The kinetics of precipitation of secondary phases (M23C6 carbides, Laves phase Fe,Mo) were studied by means of quantitative metallography. The volume fractions of chromium-rich M23C6 carbides along grain boundaries and Laves phase Fc Mo in the matrix were determined. Chromium concentration profile measurements across the grain boundary, in the vicinity of M23C6 carbides, have been performed using the analytical electron microscope. All results concerning microstructural changes were quantitatively related to the IGC characteristics by statistical normalization.en

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