Deformation Microstructure and Tensile Strength of Cold Rolled Pearlitic Steel Sheets
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- Tagashira S.
- Steel Products Department, Steel & Technology Development Laboratories, Nisshin Steel Co., Ltd.
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- Sakai K.
- Undergraduate student at Kyoto University
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- Furuhara T.
- Department of Materials Science and Engineering, Kyoto University
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- Maki T.
- Department of Materials Science and Engineering, Kyoto University
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Abstract
The deformation microstructure produced by heavy cold rolling (from 70 % to 95 % reduction) of pearlitic structure with various amounts of rolling and the tensile strength of the cold rolled sheets were studied in the plain carbon steels with various carbon contents (0.6, 0.76, and 1.0 mass%C). The deformation microstructure was classified into the following three types; 1) Irregularly Bent Lamella (IBL): lamellae originally inclined with large angles to the rolling plane and irregularly bent after deformation, 2) Coarse Lamella with Shear band (CLS) : the rhomboidal blocks of weakly deformed lamellae bounded by shear band, 3) Fine Lamella (FL): heavily deformed lamellae aligned parallel to the rolling direction with fine interlamellar spacings. As rolling reduction increases, the proportion of FL increases.<br>The tensile strength of cold rolled specimens increases with rolling reduction. Work hardening with respect to true strain by cold rolling is similar to that obtained by wire drawing. After 92 % cold rolling of 1.0 mass%C steel, the tensile strength over 2 500 MPa was achieved.
Journal
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- ISIJ International
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ISIJ International 40 (11), 1149-1156, 2000
The Iron and Steel Institute of Japan
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Details 詳細情報について
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- CRID
- 1390282681465275264
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- NII Article ID
- 10004837702
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- NII Book ID
- AA10680712
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- COI
- 1:CAS:528:DC%2BD3MXitVKruw%3D%3D
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- ISSN
- 13475460
- 09151559
- http://id.crossref.org/issn/09151559
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- Text Lang
- en
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- Data Source
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- JaLC
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed