Creep-fatigue crack growth testing and analysis of pre-strained 316H stainless steel

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dc.contributor.authorMehmanparast, Ali
dc.contributor.authorDavies, C. M.
dc.contributor.authorNikbin, Kamran
dc.date.accessioned2016-08-11T19:26:53Z
dc.date.available2016-08-11T19:26:53Z
dc.date.issued2016-07-21
dc.description.abstractMaterial pre-straining is known to have significant effects of the mechanical response and crack growth behaviour of steels. In this paper, the influence of material pre-straining on the subsequent creep-fatigue crack growth behaviour of Type 316H stainless steel at 550 °C has been examined by performing tests on compact tension specimens that were extracted from blocks uniformly pre-compressed at room temperature. Creep-fatigue crack growth tests on pre-compressed material were performed at the frequency of 0.01 Hz and R-ratio of 0.1. The crack growth data obtained from these experiments have been correlated with the C* and K fracture mechanics parameters and the results are compared with the existing creep crack growth data on the pre-compressed and as-received material at 550 °C. The results obtained have also been compared with the creep-fatigue data from experiments on weldments where the crack tip was located in the heat affected zone (HAZ). The crack growth behaviour in creep-fatigue tests on pre-compressed material has been found similar to that of HAZ material and are higher than that of the as-received material. Moreover, depending on the loading condition and frequency the crack growth data obtained from creep-fatigue tests on pre-compressed material may be characterized using C* or ΔK fracture mechanics parameters.en_UK
dc.identifier.citationAli Mehmanparast, Catrin M. Davies, Kamran Nikbin, Creep-Fatigue Crack Growth Testing and Analysis of Pre-strained 316H Stainless Steel, Procedia Structural Integrity, Volume 2, 2016, Pages 785-792en_UK
dc.identifier.issn2452-3216
dc.identifier.urihttp://dx.doi.org/10.1016/j.prostr.2016.06.101.
dc.identifier.urihttp://dspace.lib.cranfield.ac.uk/handle/1826/10283
dc.language.isoenen_UK
dc.publisherElsevieren_UK
dc.rightsAttribution 4.0 Internationalen_UK
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/
dc.subjectCree-Fatigue interactionen_UK
dc.subjectCreepen_UK
dc.subjectFatigueen_UK
dc.subjectCrack growthen_UK
dc.subjectStainless steelen_UK
dc.titleCreep-fatigue crack growth testing and analysis of pre-strained 316H stainless steelen_UK
dc.typeArticleen_UK

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