The observation of slip phenomena in single crystal Fe samples during in situ micro-mechanical testing through orientation imaging

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dc.contributor.authorBhattacharyya, Den_AU
dc.contributor.authorWheeler, RWen_AU
dc.contributor.authorHarrison, RPen_AU
dc.contributor.authorEdwards, Len_AU
dc.date.accessioned2016-06-17T05:32:32Zen_AU
dc.date.available2016-06-17T05:32:32Zen_AU
dc.date.issued2014-05-28en_AU
dc.date.statistics2016-06-17en_AU
dc.description.abstractThis paper reports a study of local orientation change occurring within micro-scale tensile samples as a function of strain. These samples were fabricated from a thin film of single crystal bcc Fe and deformed in tension using an in situ micro-mechanical testing device inside a scanning electron microscope. Samples were loaded along the <110> direction parallel to the specimen axis, strained to different levels, and then subjected to electron backscatter diffraction scans over the entire area of the gauge section. Analysis of the surface orientation data shows that, within a necked zone of the micro-sample gauge section, there are two distinct regions of significant orientation change, in which local crystal rotations occur in opposite directions. These two regions are separated by an intermediate band that shows minimal misorientation from the original state. Crystal rotations within the two regions that develop opposite orientations are found to be consistent with classic single crystal slip, where the slip direction rotates toward the tensile axis. It is shown that increasing tensile strain causes an increasing degree of rotation away from the starting orientation. The tests also illustrate the occurrence of slip on at least two different slip systems, based on the slip traces and orientation change. © 2014 Microscopy Society of America.en_AU
dc.identifier.citationBhattacharyya, D., Wheeler, R. W., Harrison, R. P., & Edwards, L. (2014). The Observation of slip phenomena in single crystal Fe samples during in situ micro-mechanical testing through orientation imaging. Microscopy and Microanalysis, 20(04), 1060-1069. doi:10.1017/S1431927614001640en_AU
dc.identifier.govdoc6703en_AU
dc.identifier.issue4en_AU
dc.identifier.journaltitleMicroscopy and Microanalysisen_AU
dc.identifier.pagination1060-1069en_AU
dc.identifier.urihttp://dx.doi.org/10.1017/S1431927614001640en_AU
dc.identifier.urihttp://apo.ansto.gov.au/dspace/handle/10238/7001en_AU
dc.identifier.volume20en_AU
dc.language.isoenen_AU
dc.publisherCambridge University Pressen_AU
dc.subjectCrystalsen_AU
dc.subjectElectron microscopesen_AU
dc.subjectDiffractionen_AU
dc.subjectTensile propertiesen_AU
dc.subjectOrientationen_AU
dc.titleThe observation of slip phenomena in single crystal Fe samples during in situ micro-mechanical testing through orientation imagingen_AU
dc.typeJournal Articleen_AU
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