Successive Grinding and Polishing Effect on the Retained Austenite in the Surface of 42CrMo4 Steel

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dc.contributor.authorPechoušek, Jiřícs
dc.contributor.authorKuzmann, Ernöcs
dc.contributor.authorOlina, Annacs
dc.contributor.authorVondrášek, Renécs
dc.contributor.authorVrba, Vlastimilcs
dc.contributor.authorKouřil, Lukášcs
dc.contributor.authorIngr, Tomášcs
dc.contributor.authorKrál, Petrcs
dc.contributor.authorMašláň, Miroslavcs
dc.coverage.issue1cs
dc.coverage.volume12cs
dc.date.accessioned2022-05-31T14:55:38Z
dc.date.available2022-05-31T14:55:38Z
dc.date.issued2022-01-07cs
dc.description.abstractLow-alloy 42CrMo4 steels were studied by Fe-57 Mossbauer spectroscopy (MS), X-ray diffractometry (XRD), and Energy Dispersive X-ray Spectroscopy (EDS) measurements. The investigations were performed on metallographic samples, which were subjected to a series of successive grinding and polishing with a progressively finer grit. Conversion X-ray Mossbauer spectroscopy (CXMS) was used to determine the occurrence of austenite in steel samples. It is a unique method detecting the austenite content very sensitively. Six samples with different surface preparation were investigated, starting with 4.8% of austenite on an as-cut sample, and a large decrease in the retained austenite to 2.6% was observed after the first grinding of a hardened cut sample. Additionally, an unexpectedly large decrease in the austenite content to 2.3% was found due to the final polishing. A second time applied successive grinding and polishing of all samples resulted in identical austenite content determined by CXMS of approx. 5%, which proved the applicability of the CXMS method. Generally, the result calls attention to the importance of preparation of metallurgical samples by grinding and polishing where the results can vary significantly on the level of surface processing.en
dc.formattextcs
dc.format.extent1-13cs
dc.format.mimetypeapplication/pdfcs
dc.identifier.citationMetals. 2022, vol. 12, issue 1, p. 1-13.en
dc.identifier.doi10.3390/met12010119cs
dc.identifier.issn2075-4701cs
dc.identifier.other177334cs
dc.identifier.urihttp://hdl.handle.net/11012/204604
dc.language.isoencs
dc.publisherMDPIcs
dc.relation.ispartofMetalscs
dc.relation.urihttps://www.mdpi.com/2075-4701/12/1/119cs
dc.rightsCreative Commons Attribution 4.0 Internationalcs
dc.rights.accessopenAccesscs
dc.rights.sherpahttp://www.sherpa.ac.uk/romeo/issn/2075-4701/cs
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/cs
dc.subjectsteel microstructureen
dc.subjectgrindingen
dc.subjectpolishingen
dc.subjectausteniteen
dc.subjectMossbauer spectroscopyen
dc.subject42CrMo4en
dc.titleSuccessive Grinding and Polishing Effect on the Retained Austenite in the Surface of 42CrMo4 Steelen
dc.type.driverarticleen
dc.type.statusPeer-revieweden
dc.type.versionpublishedVersionen
sync.item.dbidVAV-177334en
sync.item.dbtypeVAVen
sync.item.insts2022.05.31 16:55:38en
sync.item.modts2022.05.31 16:14:29en
thesis.grantorVysoké učení technické v Brně. Fakulta strojního inženýrství. Ústav strojírenské technologiecs
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