Heterogeneous Distribution of Microstrain Evolved During Tensile Deformation of Polycrystalline Plain Low Carbon Steel
On a macroscale, the stress–strain curve of polycrystalline steel exhibits perfectly linear behavior in the elastic tension region. We observed that the strain distribution within grains is inhomogeneous in the range of the elastic deformation region. Microstrain concentrates at some local sites whi...
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| Format: | Article |
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MDPI AG
2020-06-01
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| Series: | Metals |
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| Online Access: | https://www.mdpi.com/2075-4701/10/6/774 |
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| author | Hai Qiu Rintaro Ueji Yuuji Kimura Tadanobu Inoue |
| author_facet | Hai Qiu Rintaro Ueji Yuuji Kimura Tadanobu Inoue |
| author_sort | Hai Qiu |
| collection | DOAJ |
| description | On a macroscale, the stress–strain curve of polycrystalline steel exhibits perfectly linear behavior in the elastic tension region. We observed that the strain distribution within grains is inhomogeneous in the range of the elastic deformation region. Microstrain concentrates at some local sites which are at and near the grain boundaries or in the interior of the grains. The microstrain is pseudo-periodic, and its period increases with applied stress, tending to approach the grain size. In addition to the tension-strain concentration, the compression-strain concentration is even present in the elastic region. The pseudo-periodic and inhomogeneous microstrain is attributed to the orientation heterogeneity of grains in polycrystalline steel. |
| first_indexed | 2024-03-10T19:15:52Z |
| format | Article |
| id | doaj.art-439a64d8222b4cdbbdb3357885266ddf |
| institution | Directory Open Access Journal |
| issn | 2075-4701 |
| language | English |
| last_indexed | 2024-03-10T19:15:52Z |
| publishDate | 2020-06-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Metals |
| spelling | doaj.art-439a64d8222b4cdbbdb3357885266ddf2023-11-20T03:24:10ZengMDPI AGMetals2075-47012020-06-0110677410.3390/met10060774Heterogeneous Distribution of Microstrain Evolved During Tensile Deformation of Polycrystalline Plain Low Carbon SteelHai Qiu0Rintaro Ueji1Yuuji Kimura2Tadanobu Inoue3Research Center for Structural Materials, National Institute for Materials Science, 1-2-1 Sengen, Tsukuba, Ibaraki 305-0047, JapanResearch Center for Structural Materials, National Institute for Materials Science, 1-2-1 Sengen, Tsukuba, Ibaraki 305-0047, JapanResearch Center for Structural Materials, National Institute for Materials Science, 1-2-1 Sengen, Tsukuba, Ibaraki 305-0047, JapanResearch Center for Structural Materials, National Institute for Materials Science, 1-2-1 Sengen, Tsukuba, Ibaraki 305-0047, JapanOn a macroscale, the stress–strain curve of polycrystalline steel exhibits perfectly linear behavior in the elastic tension region. We observed that the strain distribution within grains is inhomogeneous in the range of the elastic deformation region. Microstrain concentrates at some local sites which are at and near the grain boundaries or in the interior of the grains. The microstrain is pseudo-periodic, and its period increases with applied stress, tending to approach the grain size. In addition to the tension-strain concentration, the compression-strain concentration is even present in the elastic region. The pseudo-periodic and inhomogeneous microstrain is attributed to the orientation heterogeneity of grains in polycrystalline steel.https://www.mdpi.com/2075-4701/10/6/774microstrainpolycrystalline steeltensile testgrainferritedigital image correlation |
| spellingShingle | Hai Qiu Rintaro Ueji Yuuji Kimura Tadanobu Inoue Heterogeneous Distribution of Microstrain Evolved During Tensile Deformation of Polycrystalline Plain Low Carbon Steel Metals microstrain polycrystalline steel tensile test grain ferrite digital image correlation |
| title | Heterogeneous Distribution of Microstrain Evolved During Tensile Deformation of Polycrystalline Plain Low Carbon Steel |
| title_full | Heterogeneous Distribution of Microstrain Evolved During Tensile Deformation of Polycrystalline Plain Low Carbon Steel |
| title_fullStr | Heterogeneous Distribution of Microstrain Evolved During Tensile Deformation of Polycrystalline Plain Low Carbon Steel |
| title_full_unstemmed | Heterogeneous Distribution of Microstrain Evolved During Tensile Deformation of Polycrystalline Plain Low Carbon Steel |
| title_short | Heterogeneous Distribution of Microstrain Evolved During Tensile Deformation of Polycrystalline Plain Low Carbon Steel |
| title_sort | heterogeneous distribution of microstrain evolved during tensile deformation of polycrystalline plain low carbon steel |
| topic | microstrain polycrystalline steel tensile test grain ferrite digital image correlation |
| url | https://www.mdpi.com/2075-4701/10/6/774 |
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