1. Effect of Carbon Content on Microstructure, Properties and Texture of Ultra-Thin Hot Rolled Strip Produced by Endless Roll Technology
- Author
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Kang Yonglin, Tian Peng, and Zhu Guoming
- Subjects
Technology ,Materials science ,Carbon steel ,formability ,chemistry.chemical_element ,engineering.material ,Article ,carbon content ,chemistry.chemical_compound ,ultra-thin ,Formability ,General Materials Science ,Texture (crystalline) ,Composite material ,Microscopy ,QC120-168.85 ,Cementite ,QH201-278.5 ,Microstructure ,Engineering (General). Civil engineering (General) ,TK1-9971 ,endless roll technology ,chemistry ,Descriptive and experimental mechanics ,engineering ,Earing ,Electrical engineering. Electronics. Nuclear engineering ,TA1-2040 ,Carbon ,texture ,Electron backscatter diffraction - Abstract
In order to make a comprehensive comparison between ultra-thin hot rolled low carbon steel (LC) and extra low carbon steel (ELC) produced by endless roll technology and explain the differences, a detailed investigation into the microstructural characterization, characteristics of cementite and precipitates, mechanical properties, internal friction peaks, texture characterization by an X-ray powder diffractometer and electron backscatter diffraction, and formability including earing behavior, hole expanding ratio and V-shaped bending properties was carried out with different carbon content for 1.0 mm thickness ultra-thin hot rolled strip produced in endless strip production line. The experimental results indicate that the microstructure of both is composed of multi-layer areas with different grain sizes and thicknesses, the strength and elongation of LC are higher than that of ELC, but the content of solid solution carbon atoms and r of ELC are higher than that of LC, at the same time, the formability of ultra-thin strip ELC is better than that of LC mainly related to the content of {hkl} <, 110>, and {111} <, 112>, of ELC was higher than those of LC. The mechanical and formability properties of ultra-thin hot rolled strip by endless roll technology can meet the requirements of replacement cold rolled strip by hot rolled strip.
- Published
- 2021
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