EBSD and electron channeling study of anomalous slip in oligocrystals of high chromium ferritic stainless steel
| Autor: | Dong Yih Lin, Jui Chao Kuo, Delphic Chen, Ting Yi Wu, Zheng Wen Hsiao |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
010302 applied physics
Materials science Annealing (metallurgy) Metallurgy General Physics and Astronomy chemistry.chemical_element 02 engineering and technology Cell Biology Slip (materials science) Electron 021001 nanoscience & nanotechnology 01 natural sciences Chromium chemistry Structural Biology Ferrite (iron) 0103 physical sciences Ultimate tensile strength General Materials Science 0210 nano-technology Kernel average misorientation Electron backscatter diffraction |
| Zdroj: | Micron (Oxford, England : 1993). 94 |
| ISSN: | 1878-4291 |
| Popis: | 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 a 0 [ 1 1 ¯ 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. |
| Databáze: | OpenAIRE |
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