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Article overview
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Tailoring the crack-tip microstructure: A novel approach | | Khilesh Kumar Bhandari
; Arka Mandal
; Md. Basiruddin Sk
; Arghya Deb
; Debalay Chakrabarti
; | | Date: |
23 Feb 2019 | | Abstract: | This investigation demonstrates a way to innovatively modify the ferritic
microstructure at a local scale, particularly at the failure prone area such as
Charpy V-notch (CVN) root. Tensile pre-strain (PS) up to 6 percent and 12
percent were employed before annealing (An) the samples at 650{deg}C for 15
minutes. Ferrite grain size increased sharply and gradually (along the distance
ahead of the notch root) within the microstructurally modified region in 6-12
percent pre-strained and annealed samples, respectively. Critical strain which
promotes strain induced boundary migration (SIBM), was found to be 0.1 which
resulted in abnormally coarse ferrite grains. | | Source: | arXiv, 1902.8797 | | Services: | Forum | Review | PDF | Favorites | |
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