Statistical scatter in the fracture toughness and Charpy impact energy of pearlitic steel

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dc.contributor.author Strnadel, Bohumír
dc.contributor.author Haušild, Petr
dc.date.accessioned 2008-06-20T10:02:33Z
dc.date.available 2008-06-20T10:02:33Z
dc.date.issued 2008
dc.identifier.citation Materials Science and Engineering. A, Structural materials : properties, microstructure and processing. 2008, vol. 486, issues 1-2, p. 208-214. en
dc.identifier.issn 0921-5093
dc.identifier.uri http://hdl.handle.net/10084/65444
dc.description.abstract The effect of microstructure on the fracture characteristics of high carbon hypo eutectoid steel was studied under conditions of quasistatic and dynamic loading. Experimentally determined sets of fracture toughness and Charpy impact energy values were statistically treated. A relationship was found between fracture toughness and Charpy impact energy. In the very brittle domain, the fracture toughness increases slightly with increasing Charpy impact energy. In the domain where the fracture toughness is higher, the rise in fracture toughness with increasing Charpy impact energy is more pronounced. Detailed SEM examination of fractured compact tension (CT) and Charpy V-notch (CVN) specimens showed that the fracture at ambient temperature occurred almost exclusively by cleavage. There were no visible differences in the morphology of cleavage facets on the fracture surfaces of Charpy and CT specimens. Mechanisms of cleavage initiation were revealed by the fractographical investigation of fracture surfaces. Whereas the fracture surfaces of broken CT specimens exhibit a number of cleavage origins, the fracture surfaces of CVN specimens usually show only one. en
dc.language.iso en en
dc.publisher Elsevier en
dc.relation.ispartofseries Materials Science and Engineering. A, Structural materials : properties, microstructure and processing en
dc.relation.uri http://dx.doi.org/10.1016/j.msea.2007.08.079 en
dc.subject hypo eutectoid steel en
dc.subject fracture toughness en
dc.subject charpy impact energy en
dc.subject ductile tearing en
dc.subject cleavage en
dc.subject Miller–Smith mechanism en
dc.subject Griffith type defect en
dc.title Statistical scatter in the fracture toughness and Charpy impact energy of pearlitic steel en
dc.type Article en
dc.identifier.location Není ve fondu ÚK en
dc.identifier.doi 10.1016/j.msea.2007.08.079
dc.identifier.wos 000256266600031

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