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| Effect of delay time before rapid cooling on transformation of micro-alloyed steel |
| GUO Jin，SHI Jia-xin，CHEN Yu-lai |
| （National Engineering Research Center of Advanced Rolling， University of Science and Technology Beijing， Beijing 100083， China） |
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Abstract Hardening and softening at high temperature can improve the microstructure and properties of the materials by enhancing the transformation nucleation of the steel. However，it is inevitable to soften between finishing deformation and ultra-fast cooling. The influence of delay time on ferrite and M/A（martensite/anstenite） phase in micro-alloyed low carbon steel（0.055C-1.47Mn-0.17Mo-0.054Nb-0.012Ti）was investigated through the Gleeble thermal simulation experiment，and the delay time is the time from the finishing deformation at 830 ℃ to ultra-fast cooling at the ratio of 80 ℃/s. The phase transformation ratio of M/A phase and the grain size were analyzed and measured by the scanning electron microscope and image analysis respectively. The results showed that in the time range of 2-7 s，the ferrite grain size increased firstly and then decreased with the increase of the delay time before the ultra-fast cooling. The maximum grain size was obtained at the delay time of 5 s while the minimum was 7 s. The volume ratio of M/A phase also showed a trend of decreasing first and then increasing with the delay time prolonging，the shape of M/A phase changed from point to block. Moreover the minimum M/A phase ratio was obtained at 5 s. Considering the influence of delay time on the ferrite and M/A grain size and the ratio of M/A phase，shortening the delay time was favorable to improve the toughness and strength of micro-alloy steel.
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Received: 15 September 2017
Published: 11 May 2018
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| [1] |
高彩茹, 刘慧, 杜林秀 等.细晶粒低碳钢的轧制工艺对显微组织的影响[J].钢铁研究学报, 2006, 18(9):33-35
|
| [1] |
高彩茹, 刘慧, 杜林秀 等.细晶粒低碳钢的轧制工艺对显微组织的影响[J].钢铁研究学报, 2006, 18(9):33-35
|
| [2] |
Wang Jian Min, Zhao Yan, Cheng Ke Sheng, et al.Preparation and properties of ultra-fine grain medium-carbon steel based on warm deformation [J]. Applied Mechanics and Materials, 2014, 488:74-78.[J].Applied Mechanics and Materials, 2014, (488):74-78
|
| [2] |
Wang Jian Min, Zhao Yan, Cheng Ke Sheng, et al.Preparation and properties of ultra-fine grain medium-carbon steel based on warm deformation [J]. Applied Mechanics and Materials, 2014, 488:74-78.[J].Applied Mechanics and Materials, 2014, (488):74-78
|
| [3] |
Subramanian S V.Ultra-fine grain size by dynamic recrystallization in strip rolling of Nb microalloyed steel[C]. Materials Science Forum, 2005, 475-479:141-144//The Fifth Pacific Rim International Conference on Advanced Materials and Processing, Beijing, China, 2004, 11, 2-5.
|
| [3] |
Subramanian S V.Ultra-fine grain size by dynamic recrystallization in strip rolling of Nb microalloyed steel[C]. Materials Science Forum, 2005, 475-479:141-144//The Fifth Pacific Rim International Conference on Advanced Materials and Processing, Beijing, China, 2004, 11, 2-5.
|
| [4] |
刘靖, 韩静涛, 温志强.控轧控冷工艺参数对钢性能的影响[J].北京科技大学学报, 2008, 38(10):1122-1126
|
| [4] |
刘靖, 韩静涛, 温志强.控轧控冷工艺参数对钢性能的影响[J].北京科技大学学报, 2008, 38(10):1122-1126
|
| [5] |
余伟, 刘丽华, 武会宾 等.工程机械用钢Q800D/E直接淬火工艺研究及应用[J].钢铁, 2011, 46(12):62-66
|
| [5] |
余伟, 刘丽华, 武会宾 等.工程机械用钢Q800D/E直接淬火工艺研究及应用[J].钢铁, 2011, 46(12):62-66
|
| [6] |
余伟, 唐荻, 蔡庆伍 等.控轧控冷技术发展及在中厚板生产中的应用[J].钢铁研究学报, 2011, s1:82-90
|
| [6] |
余伟, 唐荻, 蔡庆伍 等.控轧控冷技术发展及在中厚板生产中的应用[J].钢铁研究学报, 2011, s1:82-90
|
| [7] |
付天亮, 邓想涛, 王昭东.超快速冷却工艺对中低碳钢组织性能的影响[J].东北大学学报(自然科学版), 2010, 31(3):370-373
|
| [7] |
付天亮, 邓想涛, 王昭东.超快速冷却工艺对中低碳钢组织性能的影响[J].东北大学学报(自然科学版), 2010, 31(3):370-373
|
| [8] |
张鹤松, 朱国明, 康永林.超快冷工艺生产管线钢组织性能与析出行为[J].材料热处理学报, 2015, 36(12):103-109
|
| [8] |
张鹤松, 朱国明, 康永林.超快冷工艺生产管线钢组织性能与析出行为[J].材料热处理学报, 2015, 36(12):103-109
|
| [9] |
Bhattacharya P, Samanta, A.N,Chakraborty,SSpray evaporative cooling to achieve ultra fast cooling in runout table[J].International Journal of Thermal Sciences, 2009, 48(9):1741-1747
|
| [9] |
Bhattacharya P, Samanta, A.N,Chakraborty,SSpray evaporative cooling to achieve ultra fast cooling in runout table[J].International Journal of Thermal Sciences, 2009, 48(9):1741-1747
|
| [10] |
Hayashi K, Nagao A, Matsuda Y.550 and 610 MPa class high-strength steel plates with excellent toughness for tanks and penstocks produced using carbide morphology controlling technology[J].JFE Technical Report, 2008, (11):19-25
|
| [10] |
Hayashi K, Nagao A, Matsuda Y.550 and 610 MPa class high-strength steel plates with excellent toughness for tanks and penstocks produced using carbide morphology controlling technology[J].JFE Technical Report, 2008, (11):19-25
|
| [11] |
Yu Wei，Chen Tao，Jiao Duotian.Effect of Quenching and Partitioning Process on MA Constituent in Nb-Bearing HSLA Steel[J].Journal of Wuhan University of Technology-Mater, 2012, (2):21-26
|
| [11] |
Yu Wei，Chen Tao，Jiao Duotian.Effect of Quenching and Partitioning Process on MA Constituent in Nb-Bearing HSLA Steel[J].Journal of Wuhan University of Technology-Mater, 2012, (2):21-26
|
| [12] |
Jacques P J.Experimental investigation of the influence of the austenite grain size on the mechanism and kinetics of the bainite transformation in steels[J].Journal De Physique. IV: JP, 2003, 112(10):297-300
|
| [12] |
Jacques P J.Experimental investigation of the influence of the austenite grain size on the mechanism and kinetics of the bainite transformation in steels[J].Journal De Physique. IV: JP, 2003, 112(10):297-300
|
| [13] |
Hanlon D N; Sietsma J, Van der Z, et al.On the relationship between hardening and softening processes and the austenite-to-ferrite phase transformation in steel[C]//TMS Annual Meeting, 2001: 215-227, New Orleans, LA, United states, 2001, 2, 12-15.
|
| [13] |
Hanlon D N; Sietsma J, Van der Z, et al.On the relationship between hardening and softening processes and the austenite-to-ferrite phase transformation in steel[C]//TMS Annual Meeting, 2001: 215-227, New Orleans, LA, United states, 2001, 2, 12-15.
|
| [14] |
任学平, 唐荻, 张海冰 等.变形功与冷却速度对金属组织细化的影响[J].金属学报, 2002, 38(3):295-298
|
| [14] |
任学平, 唐荻, 张海冰 等.变形功与冷却速度对金属组织细化的影响[J].金属学报, 2002, 38(3):295-298
|
| [15] |
Yang S, Shang C, Yuan Y et al.Thermec’ 2000, North-Holland, LasVagas: pergamon, 2000:25
|
| [15] |
Yang S, Shang C, Yuan Y et al.Thermec’ 2000, North-Holland, LasVagas: pergamon, 2000:25
|
| [16] |
王学敏, 尚成嘉, 杨善武 等.变形功与冷却速度对金属组织细化的影响[J].金属学报, 2002, 38(6):661-666
|
| [16] |
王学敏, 尚成嘉, 杨善武 等.变形功与冷却速度对金属组织细化的影响[J].金属学报, 2002, 38(6):661-666
|
| [17] |
廖波, 肖福仁.针状铁素体管线钢组织及强韧化机理研究[J].材料热处理学报, 2009, 30(2):57-62
|
| [17] |
廖波, 肖福仁.针状铁素体管线钢组织及强韧化机理研究[J].材料热处理学报, 2009, 30(2):57-62
|
| [18] |
仝珂, 庄传晶, 刘强, 等.高钢级管线钢中岛的微观特征及其对力学性能的影响[J].机械工程材料, 2011, 35(2):4-7
|
| [18] |
仝珂, 庄传晶, 刘强, 等.高钢级管线钢中岛的微观特征及其对力学性能的影响[J].机械工程材料, 2011, 35(2):4-7
|
| [19] |
刘莉, 赵亚娟, 王秀芳.高强度微合金管线钢中的MA岛对性能的影响[J].南钢科技与管理, 2008, 1:1-5
|
| [19] |
刘莉, 赵亚娟, 王秀芳.高强度微合金管线钢中的MA岛对性能的影响[J].南钢科技与管理, 2008, 1:1-5
|
| [20] |
高惠临, 董玉华, 王荣.管线钢焊接临界粗晶区局部脆化现象的研究[J].材料热处理学报, 2001, 22(2):60-65
|
| [20] |
高惠临, 董玉华, 王荣.管线钢焊接临界粗晶区局部脆化现象的研究[J].材料热处理学报, 2001, 22(2):60-65
|
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2018, Vol. 53 
