Effect of Solution Annealing on Fatigue Crack Propagation in the AISI 304L TRIP Steel

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dc.contributor.authorJambor, Michalcs
dc.contributor.authorVojtek, Tomášcs
dc.contributor.authorPokorný, Pavelcs
dc.contributor.authorŠmíd, Miroslavcs
dc.coverage.issue6cs
dc.coverage.volume14cs
dc.date.accessioned2021-11-15T07:54:23Z
dc.date.available2021-11-15T07:54:23Z
dc.date.issued2021-03-01cs
dc.description.abstractFatigue crack propagation in near-threshold regime was studied in the 304L austenitic stainless steel in two microstructural states: as-received (AR) with finer microstructure and low susceptibility to the transformation-induced plasticity (TRIP) effect, and solution-annealed (SA) with coarser microstructure and higher susceptibility to TRIP. At the load ratio R = 0.1 the threshold was higher in the SA state than in the AR state due to coarser grains and possibly the TRIP effect. In order to clarify the role of crack closure, experiments at R = 0.7 were done. The threshold in the SA state was still higher by 1 MPa center dot m(0.5). This effect was identified as crack tip shielding induced by phase transformation, an example of a non-closure shielding effect. Higher resistance to crack growth in the SA state was attributed to promoted martensitic transformation in non-favorable oriented grain families rather than thicker martensite layers in the crack path area. The conclusions were verified by experiments at R = 0.7 and temperature 150 degrees C > M-s which did not reveal any notable difference in thresholds. However, the threshold values were affected by the load-shedding gradient C = -d Delta K/da, which had to be equalized in both experimental setups inside and outside the furnace.en
dc.formattextcs
dc.format.extent1-13cs
dc.format.mimetypeapplication/pdfcs
dc.identifier.citationMaterials . 2021, vol. 14, issue 6, p. 1-13.en
dc.identifier.doi10.3390/ma14061331cs
dc.identifier.issn1996-1944cs
dc.identifier.other172957cs
dc.identifier.urihttp://hdl.handle.net/11012/202268
dc.language.isoencs
dc.publisherMDPIcs
dc.relation.ispartofMaterialscs
dc.relation.urihttps://www.mdpi.com/1996-1944/14/6/1331cs
dc.rightsCreative Commons Attribution 4.0 Internationalcs
dc.rights.accessopenAccesscs
dc.rights.sherpahttp://www.sherpa.ac.uk/romeo/issn/1996-1944/cs
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/cs
dc.subjectsolution annealingen
dc.subjectfatigue crack propagationen
dc.subjectmartensitic transformationen
dc.subjectcrack closureen
dc.subject304L steelen
dc.subjecteffective thresholden
dc.subjectload sheddingen
dc.titleEffect of Solution Annealing on Fatigue Crack Propagation in the AISI 304L TRIP Steelen
dc.type.driverarticleen
dc.type.statusPeer-revieweden
dc.type.versionpublishedVersionen
sync.item.dbidVAV-172957en
sync.item.dbtypeVAVen
sync.item.insts2021.11.30 12:55:19en
sync.item.modts2021.11.30 12:15:15en
thesis.grantorVysoké učení technické v Brně. Středoevropský technologický institut VUT. Pokročilé kovové materiály a kompozity na bázi kovůcs
thesis.grantorVysoké učení technické v Brně. Středoevropský technologický institut VUT. Příprava a charakterizace nanostrukturcs
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Příprava a charakterizace nanostruktur
Pokročilé kovové materiály a kompozity na bázi kovů