余世超,曹杰,梁磊,沈晓辉,王会廷,潘红波

• 1:安徽工业大学冶金工程学院
• 2:冶金减排与资源综合利用教育部重点实验室(安徽工业大学)

摘要(Abstract)：

采用热模拟试验机研究了含Cr高碳钢82B的连续冷却组织转变过程，然后采用ANSYS有限元软件模拟分析了不同规格盘条的控制冷却过程及规格效应。结果表明：当冷速小于5℃/s时，索氏体含量随冷却速率的增加而增加较快，而在5～10℃/s的冷速范围内变化较为平缓，在10℃/s时达到最大值94.3%,之后呈现线性下降趋势；索氏体片层间距S_P与过冷度ΔT之间满足关系：S~(-1)_P=2.6459+0.0726×ΔT;小规格盘条采用水冷加Stelmor风冷的方式可以获得较高的索氏体化率和较小的片层间距，且组织均匀性也较好；而随着盘条规格增大，吐丝前轧件内外的温差变大，相变前的冷速降低，相变开始温度升高，相变持续时间增加且温升变大，造成索氏体化率降低，片层间距增加，组织均匀性降低。

关键词(KeyWords)： 高碳钢;控制冷却;组织转变;规格效应;有限元模拟

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金(U1860105)

作者(Author): 余世超,曹杰,梁磊,沈晓辉,王会廷,潘红波

DOI: 10.13289/j.issn.1009-6264.2024-0078

参考文献(References)：

• [1] 华蔚，徐震，宋金玲，等.控制冷却对SWRH82B-1V高碳钢盘条组织和性能的影响[J].特殊钢，2010,31(1):60-62.HUA Wei,XU Zhen,SONG Jin-ling,et al.Effect of controlled cooling on microstructure and properties of SWRH82B-1V high carbon steel rod[J].Special Steel,2010,31(1):60-62.
• [2] 魏勇，韦贺，严海峰，等.等温温度对82B高碳钢过冷奥氏体转变的影响[J].金属热处理，2018,43(12):211-215.WEI Yong,WEI He,YAN Hai-feng,et al.Effect of isothermal temperature on undercooled austenite transformation of 82B high carbon steel[J].Heat Treatment of Metals,2018,43(12):211-215.
• [3] Zhang C L,Liu X,Zhou L Y,et al.Influence of pearlite interlamellar spacing on strain hardening behaviour in spring steel 60Si2MnA[J].Procedia Engineering,2014,81:1283-1287.
• [4] 徐杨，宋仁伯，刘政东.索氏体化率及夹杂物对82B盘条力学性能的影响[J].热加工工艺，2015,44(8):100-104.XU Yang,SONG Ren-bo,LIU Zheng-dong.Effect of sositization rate and inclusion on mechanical properties of 82B rod[J].Hot Working Technology,2015,44(8):100-104.
• [5] Tian J Y,Wang H X,Zhu M,et al.Improving mechanical properties in high-carbon pearlitic steels by replacing partial V with Nb[J].Materials Science and Engineering A,2022,834(17):142622.
• [6] Dey I,Chandra S,Saha R,et al.Effect of Nb micro-alloying on microstructure and properties of thermo-mechanically processed high carbon pearlitic steel[J].Materials Characterization,2018,140:45-54.
• [7] Nam W J,Bae C M,Oh S J,et al.Effect of interlamellar spacing on cementite dissolution during wire drawing of pearlitic steel wires[J].Scripta Materialia,2000,42(5):457-463.
• [8] Kwang J H.The temperature distribution and underlying cooling mechanism of steel wire rod in the Stelmor type cooling process[J].Applied Thermal Engineering,2018,142:311-320.
• [9] Kwang J H.Effects of nozzle shape and arrangement on the cooling performance of steel wire rod in the Stelmor cooling process[J].Applied Thermal Engineering,2020,163:114461.
• [10] Yu W H,Chen S H,Kuang Y H,et al.Development and application of online Stelmor controlled cooling system[J].Applied Thermal Engineering,2009,29(14/15):2949-2953.
• [11] Kazeminezhad M,Karimi A T.The effect of controlled cooling after hot rolling on the mechanical properties of a commercial high carbon steel wire rod[J].Materials & Design,2003,24(6):415-421.
• [12] 赫芳，王福明，金桂香，等.吐丝温度对82B高碳钢动态CCT曲线的影响[J].金属热处理，2011,36(12):4-8.HE Fang,WANG Fu-ming,JIN Gui-xiang,et al.Effect of spinning temperature on dynamic CCT curve of 82B high carbon steel[J].Heat Treatment of Metals,2011,36(12):4-8.
• [13] 方针正，马靳江，牛强.高速线材轧后控制冷却工艺的分析[J].轧钢，2015,32(3):55-59.FANG Zhen-zheng,MA Jin-jiang,NIU Qiang.Analysis of controlled cooling process of high speed wire rod after rolling[J].Steel Rolling,2015,32(3):55-59.
• [14] 廖琳琳，黎立璋，严海峰，等.82B高碳钢静态CCT曲线及显微组织[J].金属热处理，2017,42(8):30-35.LIAO Lin-lin,LI Li-zhang,YAN Hai-feng,et al.Static CCT curves and microstructure of 82B high carbon steel[J].Heat Treatment of Metals,2017,42(8):30-35.
• [15] 李翔，康永林，顾克井，等.铌微合金化高碳钢的连续冷却转变[J].钢铁研究学报，2004,16(3):44-48.LI Xiang,KANG Yong-lin,GU Ke-jing,et al.Continuous cooling transformation of niobium microalloyed high carbon steels[J].Journal of Iron and Steel Research,2004,16(3):44-48.
• [16] 苏雪，王厚昕，朱敏，等.原位观察铌对高碳钢珠光体相变的影响[J].钢铁，2022,57(4):88-96.SU Xue,WANG Hou-xin,ZHU Min,et al.In-situ observation for effect of niobium on pearlite transformation in high-carbon steel[J].Iron & Steel,2022,57(4):88-96.
• [17] 车安，白喜峰，韩立涛，等.高碳钢线材生产控轧控冷工艺浅析[C]//中国金属学会.2014年全国轧钢生产技术会议文集(下).江苏无锡，2014.CHE An,BAI Xi-feng,HAN Li-tao,et al.A brief analysis of the process of controlled rolling and cooling in production of high carbon steel wire[C]//Chinese Society of Metals.2014 National Conference on Steel Rolling Production Technology (Part 2),Wuxi,Jiangsu,2014.
• [18] 秦树超，黄翠环，赵铮铮，等.超高强度桥梁缆索用SWRS87B钢盘条的控冷工艺[J].金属热处理，2017,42(10):104-107.QIN Shu-chao,HUANG Cui-huan,ZHAO Zheng-zheng,et al.Controlled cooling process for ultra-high strength bridge cable wire rod[J].Heat Treatment of Metals,2017,42(10):104-107.
• [19] 韩立涛，任玉辉，白喜峰，等.高速线材在线水浴处理技术开发[J].金属制品，2014,40(1):40-43.HAN Li-tao,REN Yu-hui,BAI Xi-feng,et al.Development of high speed wire online water bath treatment technology[J].Metal Products,2014,40(1):40-43.
• [20] 郭洛方，徐凯，高永彬，等.盐浴等温热处理对超高强硬线钢100Si组织和性能的影响[J].特殊钢，2023,44(3):84-89.GUO Luo-fang,XU Kai,GAO Yong-bin,et al.Effect of salt bath isothermal heat treatment on structure and properties of ultra high strength hard wire 100Si steel[J].Special Steel,2023,44(3):84-89.
• [21] 万五霞.高碳钢线材轧后控冷过程中温度场数值模拟[D].武汉：武汉科技大学，2010.WAN Wu-xia.Numerical simulation of temperature field in controlled cooling process of high carbon steel wire rolling[D].Wuhan:Wuhan University of Science and Technology,2010.
• [22] 徐进桥，刘雅政，周淑梅.高速线材82B控制冷却线的数学模型和应用[J].特殊钢，2006,27(5):12-14.XUE Jin-qiao,LIU Ya-zheng,ZHOU Shu-mei.Mathematical model and application of high-speed wire 82B controlled cooling line[J].Special Steel,2006,27(5):12-14.
• [23] 仇雅鸣.高速线材穿水控冷过程温度场建模与分析[D].武汉：武汉科技大学，2009.CHOU Ya-ming.Modeling and analysis of temperature field in water controlled cooling process of high-speed wire[D].Wuhan:Wuhan University of Science and Technology,2009.
• [24] 邸全康，王福明，王晓晨，等.高速线材轧制全程温度曲线有限元模拟[J].工程科学学报，2016,38(2):276-282.DI Quan-kang,WANG Fu-ming,WANG Xiao-chen,et al.Finite element simulation of temperature curve of high speed wire rolling[J].Chinese Journal of Engineering,2016,38(2):276-282.
• [25] 赵晓宏.高线热水浴冷却中的温度场数值模拟[D].鞍山：辽宁科技大学，2012.ZHAO Xiao-hong.Numerical simulation of temperature field in high line hot water bath cooling[D].Anshan:University of Science and Technology Liaoning,2012.
• [26] Rastegari H,Kermanpur A,Najafizadeh A.Effect of initial microstructure on the work hardening behavior of plain eutectoid steel[J].Materials Science and Engineering A,2015,632:103-109.
• [27] Xu J Q,Liu Y Z,Zhou S M.Calculation models of interlamellar spacing of pearlite in high-speed 82B rod[J].Journal of Iron and Steel Research,International,2008,15(4):57-60.
• [28] 李阳，甄先锋，王广顺，等.在线盐浴热处理生产高性能Fe-C-Mn-Si高碳钢线材[J].中国冶金，2023,33(4):104-110.LI Yang,ZHEN Xian-feng,WANG Guang-shun,et al.High performance Fe-C-Mn-Si high carbon steel wire rod produced by in-line salt bath heat treatment[J].China Metallurgy,2023,33(4):104-110.

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