Finite-Element and Experimental Analyses on the Formability of Steel Sheets Produced by Compact Endless Cast and Rolling
SCIE
SCOPUS
- Title
- Finite-Element and Experimental Analyses on the Formability of Steel Sheets Produced by Compact Endless Cast and Rolling
- Authors
- Jae Wung Bae; Ho Yong Um; Sang Hyun Lee; Byeoung Jin Min; Seong Yeon Kim; Jae Sook Chung; Kyo Sun Park; Min Hong Seo; Kim, H.S.
- Date Issued
- 2017-03
- Publisher
- springer
- Abstract
- Although the compact endless cast and rolling mill (CEM) is a promising candidate as a next-generation energy-saving steel process, due to its short history, the formability of the steel sheet produced by the CEM process are not known yet. Herein, drawability and stretchability of low-carbon steel sheets produced by the CEM process are investigated and compared with those of conventional hot-rolled low-carbon steel sheets, to estimate its applicability to industrial parts. Finite element analyses using the Gurson-Tvergaard-Needleman damage model were conducted and compared with the experimental results. Homogeneous microstructure and relatively strong textures of {111}||ND gamma-fibers and aOE (c) 110 >||RD alpha-fibers were developed in the CEM-processed steel in comparison with the conventional hot-rolled specimen. The drawn cup of the CEM specimen showed weak earing phenomena, while having higher limiting drawing ratios (2.0 and 1.95 in the experimental and numerical simulation, respectively). Furthermore, a difference in limit dome height between the two specimens is negligible. Therefore, it is confirmed that CEM-processed steels have comparable properties of strength and formability, provide an effective manufacturing process, and exhibit good potential as a next-generation energy-saving process.
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/37261
- DOI
- 10.1007/S11661-017-3956-6
- ISSN
- 1073-5623
- Article Type
- Article
- Citation
- Metallurgical and Materials Transactions A, vol. 48, no. 3, page. 1021 - 1032, 2017-03
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