Strain localization behavior in low-carbon martensitic steel during tensile deformation

The microscopic strain distribution of lath martensitic steel during tensile deformation up to a strain of 10% has been measured in situ. Strain localization, which indicates grain interaction, is clearly observed in the vicinity of subblock boundaries, and it affects the inhomogeneous crystal rotat...

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Bibliographic Details
Published inScripta materialia Vol. 69; no. 11-12; pp. 793 - 796
Main Authors Na, Hyuntaek, Nambu, Shoichi, Ojima, Mayumi, Inoue, Junya, Koseki, Toshihiko
Format Journal Article
LanguageEnglish
Published Elsevier Ltd 01.12.2013
Subjects
Digital image correlation
Electron backscattering diffraction (EBSD)
Grain refining
Martensitic steels
Plastic deformation
Electron backscattering diffraction (EBSD)
Plastic deformation
Martensitic steels
Grain refining
Digital image correlation
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Summary:The microscopic strain distribution of lath martensitic steel during tensile deformation up to a strain of 10% has been measured in situ. Strain localization, which indicates grain interaction, is clearly observed in the vicinity of subblock boundaries, and it affects the inhomogeneous crystal rotation behavior within the block (or subblock), and hence the resultant rapid grain subdivision of the lath martensitic steel during elongation.
ISSN:1359-6462
1872-8456
DOI:10.1016/j.scriptamat.2013.08.030