碳锰钢等温退火热处理后拉伸性能数学模型的建立
Establishment of Tensile Properties Mathematical Model of C-Mn Steel after Isothermal Annealing Heat Treatment
摘 要
采用热力模拟试验机对碳质量分数为0.159 1%的碳锰钢冷轧板进行了不同温度和时间的等温退火热处理，对热处理后的拉伸性能进行了测试，依据加权方法建立了分段拉伸性能数学模型，并进行了验证。结果表明：试验钢的屈服强度随等温温度的升高及保温时间的延长而降低，抗拉强度总体上随等温温度升高和保温时间而降低，但变化规律较复杂；伸长率的变化趋势与强度的变化趋势相反；建立的数学模型具有较好的精度，计算得到的屈服强度、抗拉强度和伸长率与试验值的相对误差分别为3.93%，3.21%和19.91%。
等温退火热处理
拉伸性能
数学模型
C-Mn steel
isothermal annealing heat treatment
tensile property
mathematical model
Abstract
Isothermal annealing heat treatment experiment of C-Mn cold-rolled sheet with carbon content 0.159 1wt% was carried out by using thermomechanical simulation testing machine at different temperatures and holding time, and then the steel's tensile properties was tested. A segmented tensile properties mathematical model based on the weighting method was built and verified. The results show yield strength of the tested steel decreases with the increase of isothermal temperature and holding time. The change rules of tensile strength with isothermal temperature and holding time are relatively complex; from a general view, the tensile strength decreases with the increase of isothermal temperature and the holding time. The change trend of elongation is opposite to that of the strengths. The segmented mathmatical model has good accuracy, the relative errors of yield strength, tensile strength and elongation from calculation and experiment are 3.93%, 3.21% and 19.91%, respectively.
中图分类号 TG161 DOI 10.11973/jxgccl201703016
所属栏目 物理模拟与数值模拟
基金项目 国家自然科学基金资助项目（51575162）
收稿日期 2015/12/4
修改稿日期 2016/2/2
网络出版日期
作者单位点击查看
备注周旭东(1963-),男,辽宁锦县人,教授,博士。
引用该论文: ZHOU Xu-dong,LIU Xiang-ru,LI Jun,WANG Jian. Establishment of Tensile Properties Mathematical Model of C-Mn Steel after Isothermal Annealing Heat Treatment[J]. Materials for mechancial engineering, 2017, 41(3): 79～83
周旭东,刘香茹,李俊,王健. 碳锰钢等温退火热处理后拉伸性能数学模型的建立[J]. 机械工程材料, 2017, 41(3): 79～83
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【3】SICILIAN J F, JONAS J J. Mathematical modeling of the hot strip rolling of micro alloyed Nb, multiply alloyed Cr Mo, and plain C-Mn steels[J]. Metallurgical and Materials Transactions A, 2000, 31(2):511-530.
【4】孙卫华. C-Mn钢热轧板带的组织性能预测[D]. 沈阳:东北大学, 1991.
【5】王国栋, 刘相华, 刘振宇. 钢材热轧过程中组织性能预测技术的发展现状和趋势[J]. 钢铁, 2007, 42(10):1-5.
【6】许云波, 刘相华, 王国栋. 400 MPa级C-Mn钢控轧控冷生产过程组织性能的预测[J]. 钢铁, 2003, 38(2):46-50.
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【8】杨丽. 化学成分与热处理工艺对45CrNiMo钢组织与机械性能的影响[D]. 哈尔滨:哈尔滨工业大学, 2016.
【9】WANG S S, PENG D L, CHANG L, et al. Enhanced mechanical properties induced by refined heat treatment for 9Cr-0.5Mo-1.8W martensitic heat resistant steel[J]. Materials and Design, 2013, 50:174-180.
【10】PRASAD S N, SAXENA A, SODHI M M S, et al. Influence of different heat treatment parameters on microstructure and mechanical properties of C-Mn strapping quality steels[J]. Materials Science and Engineering A, 2008, 476:126-131.
【11】MOVAHED P, KOLAHGAR S, MARASHI S P H, et al. The effect of intercritical heat treatment temperature on the tensile properties and work hardening behavior of ferrite-martensite dual phase steel sheets[J]. Materials Science and Engineering A, 2009, 518:1-6.
【12】NIKULIN S A, ROGACHEV S O, KHATKEVICH V M, et al. Effect of heat treatment on the structure and mechanical properties of 0.08%C-17.0%Cr-0.8%Ti steel after "internal" nitriding[J]. Journal of Alloys and Compounds, 2013, 564:114-116.
【13】张凯, 易小刚, 彭倩筠. 热处理工艺对工程机械用1000 MPa级高强钢组织与性能的影响[J]. 机械工程材料, 2014, 38(4):29-33.
【14】代礼斌, 李济林, 万红. 热处理工艺对含铌GH2132合金组织和性能的影响[J]. 机械工程材料, 2014, 38(9):55-75.
【15】黄剑锋, 雍岐龙, 孙新军. 热处理工艺对Ti55531钛合金显微组织与拉伸性能的影响[J]. 机械工程材料, 2014, 38(8):20-23.
【16】陈国红. 32Mn长轴类锻件锻后热处理力学性能的预测与控制[J]. 大型铸锻件, 2002(4):23-25.
【17】ZHANG C L, ZHOU L Y, LIU Y Z. Heredity in the microstructure and mechanical properties of hot-rolled spring steel wire 60Si2MnA during heat treatment process[J]. J Mater Sci Technol, 2013, 29(1):82-88.
【18】POWAR A, DATE P. Modeling of microstructure and mechanical properties of heat treated components by using artificial neural network[J]. Materials Science and Engineering A, 2015, 628:89-97.
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