Microstructural evolution of massive and allotriomorphic ferrite in an interstitial-free steel subjected to cold-rolling and post-annealing

被引：0
|
作者：
Chen, Yung-An [1 ]
Lu, Shih-Yuan [1 ]
Tseng, Chien-Yu [1 ]
Tsao, Tzu-Ching [1 ]
Yang, Yo-Lun [2 ]
Chen, Chih-Yuan [3 ]
Su, Te-Cheng [1 ]
Yang, Jer-Ren [1 ]
机构：
[1] Natl Taiwan Univ, Dept Mat Sci & Engn, Taipei, Taiwan
[2] Natl Taipei Univ Technol, Dept Mech Engn, Taipei, Taiwan
[3] Natl Taipei Univ Technol, Grad Inst Intellectual Property, Taipei, Taiwan
来源：
MATERIALS CHARACTERIZATION | 2025年 / 223卷
关键词：
Interstitial-free steel; Massive ferrite; Cold-rolling; Annealing; Scanning electron microscopy; Transmission electron microscopy; Scanning transmission electron microscopy; (STEM); LOW-CARBON; IF-STEEL; DYNAMIC RECRYSTALLIZATION; PLASTIC-DEFORMATION; GRAIN-BOUNDARY; FE-MN; TRANSFORMATION; MICROBANDS; STRENGTH; CONTRAST;
D O I：
10.1016/j.matchar.2025.114933
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Massive ferrite and allotriomorphic ferrite were produced respectively in samples of an interstitial-free steel. Their deformation structures (subjected to 67 % cold-rolling) and corresponding annealing structures (treated by annealing treatment at 600 degrees C) were investigated by scanning electron microscopy (SEM), transmission electron microscopy (TEM) and scanning transmission electron microscopy (STEM). It was found that the deformed massive ferrite completed recrystallization much faster than the deformed allotriomorphic ferrite did. The yield and ultimate tensile strengths of the fully recrystallized samples of the deformed massive ferrite were much better than those of the deformed allotriomorphic ferrite. The evolution of the annealing structure has been explored and discussed.
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页数：13
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