Title | EBSD and electron channeling study of anomalous slip in oligocrystals of high chromium ferritic stainless steel. |
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Authors | Z.W. Hsiao; T.Y. Wu; D. Chen; J.C. Kuo; D.Y. Lin |
Journal | Micron |
DOI | 10.1016/j.micron.2016.12.003 |
Abstract |
In the present study, electron backscatter diffraction (EBSD) and electron channeling contrast imaging (ECCI) techniques were applied to investigate the deformation pattern of coarse ferrite grains after being subjected to 3%, 6%, and 10% tensile deformation. Oligocrystals of Crofer(®) 22H ferritic steel were obtained as experimental material at 1075°C for 22min annealing. Using kernel average misorientation (KAM) mapping obtained from EBSD, possible slip planes are (110), (101), (12-1) and (32-1) in grain A; (0-11), (-101), (-112), (1-21) in grain B; and (0-11), (1-21) and (11-2) in grain C. Combining ECCI and EBSD techniques enables us to identify two a0[11¯1]/2 edge dislocations that occur on the (110)[1-11] and (32-1)[1-11] slip systems for grain A, thereby breaking down Schmid's law. |
EBSD and electron channeling study of anomalous slip in oligocrystals of high chromium ferritic stainless steel.