|
|
|
| CONTROL OF MICROSTRUCTURES OF FERRITE/ BAINITE (F/B) DUAL-PHASE STEELS AND ANALYSIS OF THEIR RESISTANCE TO DEFORMATION BEHAVIOR |
| NIE Wenjin1, 2), SHANG Chengjia1), GUAN Hailong1), ZHANG Xiaobing2), CHEN Shaohui2) |
1) School of Materials Science and Technology, University of Science and Technology Beijing, Beijing 100083
2) Jiangsu Shagang Group, Zhangjiagang 215625 |
|
Cite this article:
NIE Wenjin SHANG Chengjia GUAN Hailong ZHANG Xiaobing CHEN Shaohui. CONTROL OF MICROSTRUCTURES OF FERRITE/ BAINITE (F/B) DUAL-PHASE STEELS AND ANALYSIS OF THEIR RESISTANCE TO DEFORMATION BEHAVIOR. Acta Metall Sin, 2012, 48(3): 298-306.
|
|
|
Abstract Five ferrite/bainite (F/B) dual-phase steels with the chemistry of low carbon, high manganese and high niobium, and different volume fractions of bainite (15%-98%) were produced by control rolling+relaxing+ACC processing. With the help of the modified Crussard-Jaoul (C-J) analysis, the effects of soft phase (ferrite) content and its grain size on the work--hardening behavior of the steels and the cooperative deformation relationship between softer phase and harder phase were studied, which was validated by EBSD analysis. The results illustrate that a reasonable proportion of F/B can be helpful to improve initial work-hardening (a high Rt1.5/Rt0.5), reduce the yield ratio, and maintain a high uniform elongation. It is known that the cooperative deformation of ferrite and bainite is the main mechanism for improving the stress ratio and the uniform elongation of the F/B dual-phase steels.
|
|
Received: 09 October 2011
|
| Fund: Supported by National Basic Research Program of China (No.2010CB630801) |
| [1] Li H L, Li X, Ji L K. Weld Pipe Tube, 2007; 30(5):6(李鹤林, 李霄, 吉玲康. 焊管, 2007; 30(5): 6)[2] Shang C J, Yang S W, Wang X M, He X L. J Univ Sci Technol Beijing, 2003; 25: 288(尚成嘉, 杨善武, 王学敏, 贺信莱. 北京科技大学学报, 2003; 25: 288)[3] Llewellyn D T, Hillis D J. Ironmak Steelmak, 1996; 23(6): 66[4] Saleh M H, Priestner R. J Mater Process Technol, 2001; 113: 587[5] Bayram A, Uguz A, UlaM. Mater Charact, 1999; 43: 259[6] Colla V, Sanctis M D, Dimatteo A, Lovicu G, Solina A, Valentini R. Metall Mater Trans, 2009; 40A: 2557[7] Fujibayashi A, Omata K. JFE Technol Rev, 2005; 5: 11[8] Shinmiya T, Ishikawa N, Okatsu M, Endo S, Shikanai N, Kondo J. Proc 16th Int Offshore and Polar Engineering Conference, Lisbon, Portugal: International Society of Offshore and Polar Engineers (ISOPE), 2007: 2963[9] Jiao D T, Cai Q W, Wu H B. Acta Metall Sin, 2009; 45: 1111(焦多田, 蔡庆武, 武会宾. 金属学报, 2009; 45: 1111)[10] Watanabe Y, Ishibashi K, Yoshii K. Nippon Steel Tech Rep, 2004; 90: 53[11] Homma K, Tanaka M, Matsuoka K, Kasuya T, Kawasaki H. Nippon Steel Tech Rep, 2008; 97: 51[12] Jiang Z, Guan Z, Lian J. J Mater Sci, 1993; 28: 1814[13] Son Y I, Lee Y K, Park K T, Lee C S, Shin D H. Acta Mater, 2005; 53: 3125[14] Podder A S, Bhattacharjee D, Ray R K. ISIJ Int, 2007; 47: 1058[15] Umemoto M, Liu Z G, Sugimoto S, Tsuchiya K. Metall Mater Trans, 2000; 32A: 1785[16] Kumar A, Singh S B, Ray K K. Mater Sci Eng, 2008; A474: 270[17] Bag A, Ray K K, Dwarkadasa E S. Metall Trans, 1999; 30A: 1193[18] Ishikawa N, Parks D M, Socrate S, Kurihara M. ISIJ Int, 2000; 40: 1170[19] Huper T, Endo S, Ishikawa O, Osawa K. ISIJ Int, 1999; 39: 288[20] Shikana N, Kagawa H, Kuriha M. ISIJ Int, 1992; 32: 337[21] Chang P H, Preban A G. Acta Metall, 1985; 33: 897[22] DeArdo A J. ISIJ Int, 1995; 35: 946[23] Sch¨oberl T, Gupta H S, Fratzl P. Mater Sci Eng, 2003; A363: 211[24] Yu Q B, Zhao X P, Sun B. Iron Steel, 2007; 42: 76(于庆波, 赵贤平, 孙 斌. 钢铁, 2007; 42: 76)[25] Jiang Z H, Guan Z Z, Lian J S. Mater Sci Eng, 1995; A190: 55 |
| No Suggested Reading articles found! |
|
|
Viewed |
|
|
|
Full text
|
|
|
|
|
Abstract
|
|
|
|
|
Cited |
|
|
|
|
| |
Shared |
|
|
|
|
| |
Discussed |
|
|
|
|
