Kinetics model of non-isothermal austenite phase transformation for hot stamping boron steel
LI Xue-tao1,2，JIANG She-ming1，ZHANG Qi-fu1 ，TENG Hua-xiang2，ZHAO Hai-feng2，HUANG Ming-dong3
（1. National Engineering Laboratory Advanced Coating Technology for Metals， Central Iron and Steel Research Institute， Beijing 100081， China 2. Thin Strip Department， Shougang Research Institute of Technology， Beijing 100043， China 3. School of Mechanical Engineering， University of Science and Technology Beijing， Beijing 100083， China）
Abstract：The austenite transformation kinetics curves of hot stamping boron steel were investigated by thermal expansion testing on a Gleeble-3500 thermal-mechanical simulator under different heating rates. The effect of heating rate on the austenite formation was investigated. Results show that the austenite formation start temperature rises with heating rate increasing， to achieve the same volume fraction of austenite， and less time is required at a higher heating rate. When the heating temperature is between[Ac1]and[Ac3，]transformation rate of austenite percentage with the heating temperature rising will first increase then decrease. A unified kinetics model of the non-isothermal austenitization considering the influence of heating rate， based on the theory of austenite nucleation and growth， was established. Material constants in the kinetics model were determined and optimized through a genetic algorithm in Matlab. The model can describe the austenite transformation kinetics curves of boron steel and accurately predict the fraction of the austenite under different heating rates.
收稿日期: 2016-12-19
出版日期: 2017-07-28
引用本文:
李学涛，江社明，张启富，滕华湘，赵海峰，黄鸣东. 热冲压硼钢非等温奥氏体相变动力学模型[J]. 钢铁, 2017, 52(8): 92-96.
LI Xue-tao，，JIANG She-ming，ZHANG Qi-fu ，TENG Hua-xiang，ZHAO Hai-feng，HUANG Ming-dong. Kinetics model of non-isothermal austenite phase transformation for hot stamping boron steel. Iron and Steel, 2017, 52(8): 92-96.
贺连芳, 赵国群, 李辉平等. 基于响应曲面方法的热冲压硼钢B1500HS淬火工艺参数优化. 机械工程学报. 2011, 47(8):77He L F, Zhao G Q, Li H P, et al. Optimization of Quenching Parameters for Hot Stamping Boron Steel B1500HS Based on Response Surface Methodology. J MECHANICAL ENGINEERING. 2011, 47(8):77
[2]
谷诤巍, 孟佳, 李欣等. 超高强钢热成形奥氏体化加热参数的优化. 吉林大学学报(工学版). 2011, 41(2): s194Gu Z W, Meng J, Li X, et al. Research on optimization of the heating parameters of the ultra high strength steel’s austenization in hot stamping process. J Jilin Uniy (Engineering and Technology Edition). 2011, 41(2): s194
[4]
M. Naderi, A. Saeed-Akbari, W.Bleck. The effects of non-isothermal deformation on martensitic transformation in 22MnB5 steel. Mat Sci Eng A. 2008, 487 (1-2): 445
[3]
Pedram Samadian, Mohammad Habibi Parsa, and Amid Shaker. Determination of Proper Austenitization Temperatures for Hot Stamping of AISI 4140 Steel. J Mater Eng Perform. 2014, 23(4):1138
[5]
Zhu B, Zhang Y S, Wang C, et al. Modeling of the Austenitization of Ultra-high Strength Steel with Cellular Automation Method. Metall Mater Trans A. 2014, 45 (9): 4173
[4]
M. Naderi, A. Saeed-Akbari, W.Bleck. The effects of non-isothermal deformation on martensitic transformation in 22MnB5 steel. Mat Sci Eng A. 2008, 487 (1-2): 445
[6]
K.Mori, T.Maeno, K.Mongkolkaji. Tailored die quenching of steel parts having strength distribution using bypass resistance heating in hot stamping. J Mater Pro Technol. 2013, 213 (3):508
[7]
姚可夫，钱滨，石伟等. 马氏体回火过程中组织转变量预测的实验研究.金属学报. 2003, 39 (8): 892Yao K F, Qian B, Shi W, et al. Experimental study and numerical prediction of phase transformation evolution during tempering process of martensite. Acta Metall Sin. 2003, 39 (8): 892
[5]
Zhu B, Zhang Y S, Wang C, et al. Modeling of the Austenitization of Ultra-high Strength Steel with Cellular Automation Method. Metall Mater Trans A. 2014, 45 (9): 4173
[8]
J.H. Park, Y.K. Lee. Non-isothermal austenite formation behavior in an interstitial free steel with different ferrite microstructures. Scr Mater, 2008. 58: 602
[6]
K.Mori, T.Maeno, K.Mongkolkaji. Tailored die quenching of steel parts having strength distribution using bypass resistance heating in hot stamping. J Mater Pro Technol. 2013, 213 (3):508
[7]
姚可夫，钱滨，石伟等. 马氏体回火过程中组织转变量预测的实验研究.金属学报. 2003, 39 (8): 892Yao K F, Qian B, Shi W, et al. Experimental study and numerical prediction of phase transformation evolution during tempering process of martensite. Acta Metall Sin. 2003, 39 (8): 892
[9]
J. Cai, J. Lin, J. Wilsius, et al. Austenitization mechanisms and modeling methods for steels. World J Eng. 2008 5 (1): 10
[8]
J.H. Park, Y.K. Lee. Non-isothermal austenite formation behavior in an interstitial free steel with different ferrite microstructures. Scr Mater, 2008. 58: 602
[10]
Cai J Q. Modelling of Phase Transformation in Hot Stamping of Boron Steel [Dissertation]. London: Imperial College, 2011
[11]
傅垒, 王宝雨, 林建国, 等. 耦合位错密度的6111铝合金热变形本构模型. 北京科技大学学报, 2013, 35(10): 1333Fu L, Wang B Y, Lin J G, et al. Constitutive model coupled with dislocation density for hot deformation of 6111 aluminum alloy.J Univ Sic Technol Beijing, 2013, 35(10):1333
[12]
周靖，王宝雨，徐伟力等. 耦合损伤的22MnB5热变形本构模型. 北京科技大学学报. 2013, 35(11): 1450Zhou J, Wang B Y, Xu W L, et al. Damage-coupled constitutive model of 22MnB5 steel in hot deformation. J Univ Sic Technol Beijing. 2013, 35(11): 1450
[9]
J. Cai, J. Lin, J. Wilsius, et al. Austenitization mechanisms and modeling methods for steels. World J Eng. 2008 5 (1): 10
[13]
Lin J G, Cheong B H, Yao X. Universal multi-objective function for optimising superplastic-damage constitutive equations. J Mater Process Technol, 2002, 125/126: 199
[10]
Cai J Q. Modelling of Phase Transformation in Hot Stamping of Boron Steel [Dissertation]. London: Imperial College, 2011
[11]
傅垒, 王宝雨, 林建国, 等. 耦合位错密度的6111铝合金热变形本构模型. 北京科技大学学报, 2013, 35(10): 1333Fu L, Wang B Y, Lin J G, et al. Constitutive model coupled with dislocation density for hot deformation of 6111 aluminum alloy.J Univ Sic Technol Beijing, 2013, 35(10):1333
[12]
周靖，王宝雨，徐伟力等. 耦合损伤的22MnB5热变形本构模型. 北京科技大学学报. 2013, 35(11): 1450Zhou J, Wang B Y, Xu W L, et al. Damage-coupled constitutive model of 22MnB5 steel in hot deformation. J Univ Sic Technol Beijing. 2013, 35(11): 1450
[14]
Li B, Lin J G, Yao X. A novel evolutionary algorithm for determining unified creep damage constitutive equations. Int J Mech Sci, 2002, 44(5): 987
[13]
Lin J G, Cheong B H, Yao X. Universal multi-objective function for optimising superplastic-damage constitutive equations. J Mater Process Technol, 2002, 125/126: 199
[15]
Cao J, Lin J G. A study on formulation of objective functions for determining material models. Int J Mech Sci, 2008, 50(2): 193
[14]
Li B, Lin J G, Yao X. A novel evolutionary algorithm for determining unified creep damage constitutive equations. Int J Mech Sci, 2002, 44(5): 987
[15]
Cao J, Lin J G. A study on formulation of objective functions for determining material models. Int J Mech Sci, 2008, 50(2): 193
2017, Vol. 52 
