Microstructural Characterization and Softening Mechanism of Ultra-Low Carbon Steel and the Control Strategy in Compact Strip Production Process

Bo Jiang; Xuewen Hu; Guoning He; Huan Peng; Haibo Wang; Yazheng Liu

추천

검색

자료유형: 학술저널

저자정보: Bo Jiang (University of Science and Technology Beijing) Xuewen Hu (University of Science and Technology Beijing) Guoning He (University of Science and Technology Beijing) Huan Peng (Maanshan Iron & Steel Co.) Haibo Wang (University of Science and Technology Beijing) Yazheng Liu (University of Science and Technology Beijing)

저널정보: 대한금속·재료학회 Metals and Materials International Metals and Materials International Vol.26 No.9

발행연도: 2020.1

수록면: 1,295 - 1,305 (11page)

이용수

📌

연구주제

📖

연구배경

🔬

연구방법

🏆

연구결과

초록· 키워드

오류제보하기

In this paper, the microstructures and properties of hot rolled ultra-low carbon steel sheet produced by different compact stripproduction (CSP) processes were investigated. The softening mechanism was also discussed and the control strategy wasproposed in order to obtain optimum properties. Result showed that the average ferrite grain sizes of austenite rolling sheetand multiphase rolling sheet were 31.0 μm and 74.6 μm, respectively. The sheet after austenite rolling had a slightly higheryield and tensile strength while had a 6.3% higher elongation than that of the sheet after multiphase rolling. The higher dislocationin the sheet after multiphase rolling increased the strength while decreased the elongation. The softening mechanismof the sheet after multiphase rolling was the coarsening of ferrite grain. The combined role of {001} and {111} orientationresulted in a slight increase of the r and ̄rvalue in the sheet after multiphase rolling. It was a wise choice to conduct rollingat the Ac1temperature in CSP process to increase the grain size and decrease the dislocation density. Then, the strength ofthe sheets could be further reduced and the elongation could also be improved.

#CSP · Ultra-low carbon steel · Softening mechanism · EBSD · Yield strength

참고문헌 (29)

참고문헌 신청

R. Kaspar / 2003 / Microstructural aspects and optimization of thin slab direct rolling of steels / Steel Res Int 74(5):318~326

C. Klinkenberg / 2010 / 20 years of experience in thin slab casting and rolling state of the art and future developments / Mater Sci Forum 638:3610~3615

B. Gardiola / 2001 / Determination and prediction of the inherited ferrite texture in a HSLA steel produced by compact strip production / Mater Sci Eng, A 303(1?2):60~69

X. Zhu / 2012 / Comparison of grain size in plain carbon hot-rolled sheets manufactured by CSP and conventional rolling processing / J Iron Steel Res Int 19(1):17~22

M. R. Toroghinejad / 2003 / Effect of rolling temperature on the deformation and recrystallization textures of warm-rolled steels / Metall Mater Trans A 34(5):1163~1174

함께 읽어보면 좋을 논문

논문 유사도에 따라 DBpia 가 추천하는 논문입니다. 함께 보면 좋을 연관 논문을 확인해보세요!