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dc.contributor.authorSozańska, Maria
dc.contributor.authorMaciejny, Adolf
dc.contributor.authorDagbert, Catherine
dc.contributor.authorGalland, Jacques
dc.contributor.authorHyspecká, Ludmila
dc.identifier.citationMaterials science and engineering. A, Structural materials : properties, microstructure and processing. 1999, vols. 273-275, p. 485-490.en
dc.relation.ispartofseriesMaterials science and engineering. A, Structural materials : properties, microstructure and processingen
dc.subjectmartensitic transformationen
dc.subjectFe–Ni alloyen
dc.subjectquantitative metallographyen
dc.subjecthydrogen absorptionen
dc.subjectelectrochemical testsen
dc.titleUse of quantitative metallography in the evaluation of hydrogen action during martensitic transformationsen
dc.identifier.locationNení ve fondu ÚKen
dc.description.abstract-enExperiments based on image analysis method and electrochemical potentiostatic tests were performed with particular attention to the influence of hydrogen on the stabilisation of austenite of Fe–32 wt.%Ni alloy. This alloy exhibits great hydrogen absorption capacity (25 wt. ppm) and this presence modifies the martensitic transformation essentially at temperatures near MS (−40°C). In the whole range of the quenching temperatures, the difference between the volume fraction of martensite, measured on specimens with hydrogen or without hydrogen, is constant. It was found that the value of the interfacial area of the martensite plate groups SV is the best parameter describing the interfacial area between martensite and austenite. It was also found that there is a general relationship, expressed by a linear function, between this morphological parameter and an anodic current I.en

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