冯磊,鲍思前,张永青,钱学海,陈学良,钱臻,李铭泉

• 1:武汉科技大学钢铁冶金及资源利用省部共建教育部重点实验室
• 2:中信金属有限公司中信微合金化技术中心
• 3:柳州钢铁股份有限公司技术中心

摘要(Abstract)：

通过热模拟实验研究了变形温度和变形量对含铌HRB400E微合金化钢筋组织和力学性能的影响。结果表明：当变形温度为850℃,第二道次变形量为35%时，试验钢的屈服强度为562.14 MPa,抗拉强度为645.78 MPa,伸长率为32%,平均晶粒尺寸为8.7μm,组织比较均匀，综合力学性能最佳。这主要是因为在此条件下实验钢的第二相析出物细小弥散，不仅可以起到显著的沉淀强化作用，而且为后续铁素体相变提供更多有利形核点，实现了细化晶粒的目的，明显改善了试验钢的力学性能。

关键词(KeyWords)： 铌微合金化钢筋;控轧控冷;热模拟;组织性能;析出物

Abstract:

Keywords:

基金项目(Foundation): 中信CBMM铌钢研究与开发资助项目(R&D)(2021FWNB-30057)

作者(Author): 冯磊,鲍思前,张永青,钱学海,陈学良,钱臻,李铭泉

DOI: 10.13289/j.issn.1009-6264.2023-0045

参考文献(References)：

• [1] 吴杰，宋端阳.高速棒材生产线工艺及设备的应用[J].山西冶金，2021,44(3):207-209.WU Jie,SONG Duan-yang.Technology and application of relevant equipment high speed bar production line[J].Shanxi Metallurgy,2021,44(3):207-209.
• [2] 陈正权.铌微合金化在HRB400E带肋钢筋中的应用[J].福建冶金，2019,48(3):34-37.CHEN Zheng-quan.Application of Nb microalloying in HRB400E ribbed steel bar[J].Fujian Metallurgy,2019,48(3):34-37.
• [3] 郝利强.高速棒材生产线工艺及设备概述[J].山东冶金，2021,43(3):25-27.HAO Li-qiang.Overview of high-speed bar production technology and equipment[J].Shandong Metallurgy,2021,43(3):25-27.
• [4] Kim Y W,Song S W,Seo S J,et al.Effects of rolling temperature on the microstructure and mechanical properties of Ti-Mo microalloyed hot-rolled high strength steel[J].Materials Science and Engineering A,2014,60(5):244-252.
• [5] 李艳，麻衡，王中学，等.控轧控冷工艺参数对不同微合金体系的460 MPa级高强韧海工钢板组织性能的影响[J].山东冶金，2022,44(4):43-46.LI Yan,MA Heng,WANG Zhong-xue,et al.Effect of controlled rolling and controlled cooling process parameters on microstructure and properties of 460 MPa high strength and toughness marine steel plates with different microalloying systems[J].Shandong Metallurgy,2022,44(4):43-46.
• [6] Li C S,Chen J T,Yang X,et al.Effect of finish rolling temperature on microstructures and mechanical properties of 1000 MPa grade tempered steel plate for hydropower station[J].Journal of Manufacturing Processes,2021,67(7):1-11.
• [7] 张继永，李红俊，申震，等.700 MPa级汽车大梁钢混晶组织问题研究[J].轧钢，2021,38(1):84-88.ZHANG Ji-yong,LI Hong-jun,SHEN Zhen,et al.Study on mixed grain structure of 700 MPa automobile beam steel[J].Steel Rolling,2021,38(1):84-88.
• [8] Liu H L,Liu L L,Ma M Y,et al.Influence of finish rolling temperature on microstructure and mechanical properties of a 19Cr1.5Mo0.5W ferritic stainless steel[J].Acta Metallurgica Sinica,2020,33(7):991-1000.
• [9] Ma H C,Zhao B J,Yi F,et al.Simultaneously improving mechanical properties and stress corrosion cracking resistance of high-strength low-alloy steel via finish rolling within non-recrystallization temperature[J].Acta Metallurgica Sinica,2021,34(4):565-578.
• [10] 邓奇志.HRB400E细晶粒热轧钢筋生产工艺及品种开发[J].钢铁，2016,51(12):53-57.DENG Qi-zhi.Production process and variety development of HRB400E fine grain hot rolled steel bar[J].Iron and Steel,2016,51(12):53-57.
• [11] 钱学海.低成本高速棒材HRB400E热轧带肋钢筋开发[J].广西节能，2022(3):34-35.QIAN Xue-hai.Development of low-cost high-speed bar HRB400E hot-rolled ribbed bar[J].Guangxi Energy Saving,2022(3):34-35.
• [12] Xu Y B,Yu Y M,Liu X H,et al.Modeling of microstructure evolution and mechanical properties during hot-strip rolling of Nb steels[J].Journal of University of Science and Technology Beijing,2008,15(4):396-401.
• [13] 曾泽芸，李长荣，黎志英，等.Nb/V复合强化对高强度钢筋显微组织和性能的影响[J].建筑材料学报，2022,25(8):869-876.ZENG Ze-yun,LI Chang-rong,LI Zhi-ying,et al.Effect of Nb/V composite strengthening on microstructure and properties of high strength steel bars[J] Journal of Building Materials,2022,25(8):869-876.
• [14] 王倩，杨忠民，吴庆辉，等.低碳钢先共析铁素体和形变诱导铁素体的相变机制、组织和性能[J].特殊钢，2008,29(4):8-10.WANG Qian,YANG Zhong-min,WU Qing-hui,et al.Phase transformation mechanism,microstructure and properties of proeutectoid ferrite and deformation induced ferrite in low carbon steel[J].Special Steel,2008,29(4):8-10.
• [15] 孙毅，郑沁园，胡宝佳，等.3Mn-0.2C中锰钢形变诱导铁素体动态相变机理[J].金属学报，2022,58(5):649-659.SUN Yi,ZHENG Qin-yuan,HU Bao-jia,et al.Deformation-induced ferrite dynamic transformation mechanism of medium manganese steel 3Mn-0.2C[J].Acta Metallurgica Sinica,2022,58(5):649-659.
• [16] 肖金福，刘雅政，孙小军，等.变形温度对弹簧钢55SiCrA组织和性能的影响[J].特殊钢，2010,31(2):60-62.XIAO Jin-fu,LIU Ya-zheng,SUN Xiao-jun,et al.Effect of controlled rolling process on microstructure and properties of different microalloyed low carbon steel plates[J].Special Steel,2010,31(2):60-62.
• [17] 姚彦红，赵志毅，王连忠.控制轧制工艺对不同微合金化低碳钢板组织和性能的影响[C]//第三届冶金工程科学论坛，北京，2004:228.YAO Yan-hong,ZHAO Zhi-yi,WANG Lian-zhong.Effect of controlled rolling process on microstructure and properties of different microalloyed low carbon steel plates[C]//The third Metallurgical Engineering Science Forum,Beijing,2004:228.
• [18] 苑少强，邢宝泉，吴晓红，等.含Nb微合金钢应变诱导析出的研究现状[J].材料导报，2005,19(5):46-49.WAN Shao-qiang,XING Bao-quan,WU Xiao-hong,et al.Research status of strain induced precipitation in Nb microalloyed steel[J].Materials Review,2005,19(5):46-49.
• [19] 陈麒琳.铌的动态析出对变形诱导铁素体相变的影响[D].云南：昆明理工大学，2005.CHEN Qi-lin.Effect of rolling process on carbonitride precipitation in deformed austenite of microalloyed steel EH420[D].Yunnan:Kunming University of Technology,2005.
• [20] Bansal G K,Srivastava V C,Ghosh C G.Role of solute Nb in altering phase transformations during continuous cooling of a low-carbon steel[J].Materials Science and Engineering A,2019,767,138416.
• [21] 郑鲁，雍岐龙，孙珍宝.碳化铌在微合金钢中的溶解[J].金属学报，1987(6):14-16.ZHENG Lu,YONG Qi-long,SUN Zhen-bao.Dissolution of niobium carbide in microalloyed steels[J].Acta Metallurgica Sinica,1987(6):14-16.
• [22] 谢杰智，宋建勤，刘春林，等.超低碳冷镦钢混晶组织的试验分析及改善[J].南方金属，2020(4):19-23.XIE Jie-zhi,SONG Jian-qin,LIU Chun-lin,et al.Experimental analysis and improvement of mixed crystal structure of ultra low carbon cold heading steel[J].Southern Metals,2020(4):19-23.
• [23] 陈伟，施哲，赵宇.铌微合金化控冷工艺生产HRB500抗震钢筋强韧化机理[J].中南大学学报(自然科学版),2011,42(6):1604-1610.CHEN Wei,SHI Zhe,ZHAO Yu.Strengthening and toughening mechanism of HRB500 seismic reinforcement produced by niobium microalloyed controlled cooling process[J].Journal of Central South University (Natural Science Edition),2011,42(6):1604-1610.
• [24] Huang B M,Yen H W,Ho D,et al.The influence of Widmanstatten ferrite on yielding behavior of Nb-containing reinforcing steel bars[J].Scripta Materialia,2012,67(5):431-434.
• [25] 洪君，李旭超，魏旭，等.低碳铌微合金化Q370qE-HPS钢的控轧控冷工艺研究[J].上海金属，2021,43(3):1-6.HONG Jun,LI Xu-chao,WEI Xu,et al.Study on controlled rolling and controlled cooling process for low-carbon niobium-microalloyed Q370qE-HPS steel[J].Shanghai Metals,2021,43(3):1-6.
• [26] 黎志英，李长荣，曾泽芸，等.高强抗震钢筋中铌的碳、氮化物析出热力学研究[J].钢铁研究学报，2020,32(8):727-733.LI Zhi-ying,LI Chang-rong,ZENG Ze-yun,et al.Thermodynamic study on carbon and nitride precipitation of Niobium in high strength seismic reinforcement[J].Journal of Iron and Steel Research,2020,32(8):727-733.

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