TY - JOUR
T1 - EBSD and electron channeling study of anomalous slip in oligocrystals of high chromium ferritic stainless steel
AU - Hsiao, Zheng Wen
AU - Wu, Ting Yi
AU - Chen, Delphic
AU - Kuo, Jui Chao
AU - Lin, Dong Yih
PY - 2017/3/1
Y1 - 2017/3/1
N2 - 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® 22 H ferritic steel were obtained as experimental material at 1075 °C for 22 min 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.
AB - 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® 22 H ferritic steel were obtained as experimental material at 1075 °C for 22 min 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.
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U2 - 10.1016/j.micron.2016.12.003
DO - 10.1016/j.micron.2016.12.003
M3 - Article
C2 - 28011347
AN - SCOPUS:85006784366
SN - 0968-4328
VL - 94
SP - 15
EP - 25
JO - Micron
JF - Micron
ER -