Short fatigue cracks nucleation and growth in lean duplex stainless steel LDX 2101

dc.creatorStrubbia, Renata
dc.creatorHereñu, Silvina Andrea Noemi
dc.creatorAlvarez, Iris
dc.creatorKrupp, U.
dc.date2014-09
dc.identifierhttp://hdl.handle.net/11336/6183
dc.identifierStrubbia, Renata; Hereñu, Silvina Andrea Noemi; Alvarez, Iris; Krupp, U.; Short fatigue cracks nucleation and growth in lean duplex stainless steel LDX 2101; Elsevier; Materials Science and Engineering A: Structural Materials: Properties, Microstructure and Processing; 615; 9-2014; 169-174
dc.identifier0921-5093
dc.descriptionThis work is focused on the fatigue damage of lean duplex stainless steels (LDSSs) LDX 2101. Special interest is placed on analyzing short fatigue crack behavior. In this sense, short crack initiation and growth during low cycle fatigue (LCF) and short crack nucleation during high cycle fatigue (HCF) of this LDSS have been studied. The active slip systems and their associated Schmid factors (SF) are determined using electron backscattered diffraction (EBSD). Additionally, the dislocation structure developed during cycling is observed by transmission electron microscopy (TEM). Regardless of the fatigue regime, LCF and HCF, short cracks nucleate along intrusion/extrusions in ferritic grains. Moreover, during the LCF phase boundaries decelerate short crack propagation. These results are rationalized by the hardness of the constitutive phases and the dependence of screw dislocation mobility in the ferrite phase on strain rate and stress amplitude.
dc.descriptionFil: Strubbia, Renata. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Rosario. Instituto de Física de Rosario (i); Argentina
dc.descriptionFil: Hereñu, Silvina Andrea Noemi. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Rosario. Instituto de Física de Rosario (i); Argentina
dc.descriptionFil: Alvarez, Iris. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Rosario. Instituto de Física de Rosario (i); Argentina
dc.descriptionFil: Krupp, U.. University Of Applied Sciences; Alemania
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dc.languageeng
dc.publisherElsevier
dc.relationinfo:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0921509314009435
dc.relationinfo:eu-repo/semantics/altIdentifier/doi/
dc.relationinfo:eu-repo/semantics/altIdentifier/doi/10.1016/j.msea.2014.07.076
dc.rightsinfo:eu-repo/semantics/openAccess
dc.rightshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subjectDuplex Stainless Steel
dc.subjectFatigue
dc.subjectMicrostructure
dc.subjectCrack Nucleation And Growth
dc.subjectEbsd
dc.subjecthttps://purl.org/becyt/ford/2.5
dc.subjecthttps://purl.org/becyt/ford/2
dc.titleShort fatigue cracks nucleation and growth in lean duplex stainless steel LDX 2101
dc.typeinfo:eu-repo/semantics/article
dc.typeinfo:ar-repo/semantics/artículo
dc.typeinfo:eu-repo/semantics/publishedVersion


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