EH40船板钢奥氏体晶粒长大及连续冷却相变规律

doi:10.13251/j.issn.0254-6051.2023.12.032

金属热处理 ›› 2023, Vol. 48 ›› Issue (12): 189-193.DOI: 10.13251/j.issn.0254-6051.2023.12.032

EH40船板钢奥氏体晶粒长大及连续冷却相变规律

厉文墨^1,2, 刘芳芳^1,2, 王佳骥^1,2, 蒋健博^1,2, 江坤^1,2

1.海洋装备用金属材料及其应用国家重点实验室, 辽宁鞍山 114009;
2.鞍钢集团北京研究院, 北京 102209

收稿日期:2023-07-12 修回日期:2023-10-12 出版日期:2023-12-25 发布日期:2024-01-29
作者简介:厉文墨(1994—),男,工程师,硕士,主要研究方向为先进焊接用钢的制备工艺与组织表征,E-mail:13840541839@163.com
基金资助:
鞍钢股份项目(2022BJB-02GF)

Austenite grain growth and continuous cooling phase transformation of EH40 ship plate steel

Li Wenmo^1,2, Liu Fangfang^1,2, Wang Jiaji^1,2, Jiang Jianbo^1,2, Jiang Kun^1,2

1. State Key Laboratory of Metal Material for Marine Equipment and Application, Anshan Liaoning 114009, China;
2. Ansteel Beijing Research Institute, Beijing 102209, China

Received:2023-07-12 Revised:2023-10-12 Online:2023-12-25 Published:2024-01-29

摘要/Abstract

摘要： 采用Gleeble-3800热模拟试验机对EH40船板钢进行热模拟试验,通过金相显微镜(OM)、维氏硬度计等设备,分析了奥氏体晶粒尺寸随加热温度升高的粗化行为及不同冷却速度下EH40钢的组织演变与硬度变化。结果表明,奥氏体粗化温度在1200 ℃以上,奥氏体经950 ℃保温后冷却,未变形时,在0.5~1 ℃/s的冷速范围内,组织主要由铁素体与珠光体构成;当冷速达到2 ℃/s后,组织中开始出现粒状贝氏体与板条贝氏体;随着冷速持续增大,板条贝氏体比例逐渐上升并均匀化,板条形貌逐渐细化,基体硬度由157 HV5提高至214 HV5;经60%变形后,与未变形时相比,EH40钢的晶粒发生明显细化,钢中铁素体相变区扩大,基体硬度由164 HV5提高至234 HV5。

关键词: 冷却速度, EH40钢, 组织演变, 硬度, 奥氏体晶粒长大

Abstract: Gleeble-3800 testing machine was used to conduct thermal simulation tests on EH40 ship plate steel. The coarsening behavior of austenite grain and the microstructure evolution at different heating temperatures were observed by metallographic microscope (OM). The hardness change of EH40 steel at different cooling rates was analyzed using Vickers hardness tester. The results show that the coarsening temperature of austenite is above 1200 ℃. The microstructure of austenite at 950 ℃ and undeformation is mainly composed of ferrite and pearlite in the cooling rate range of 0.5-1 ℃/s without deformation after holding at 950 ℃. When the cooling rate reaches 2 ℃/s, granular bainite and lath bainite are observed in the microstructure. With the increase of cooling rate, the lath bainite proportion gradually increases and is homogenized, the morphology of lath gradually refines, and the matrix hardness increases from 157 HV5 to 214 HV5. After 60% deformation, the grain of EH40 steel is finer than that of the undeformed steel, the ferritic phase transformation zone is enlarged, and the matrix hardness is increased from 164 HV5 to 234 HV5.

Key words: cooling rate, EH40 steel, microstructure evolution, hardness, austenite grain growth

中图分类号:

TG161

厉文墨, 刘芳芳, 王佳骥, 蒋健博, 江坤. EH40船板钢奥氏体晶粒长大及连续冷却相变规律[J]. 金属热处理, 2023, 48(12): 189-193.

Li Wenmo, Liu Fangfang, Wang Jiaji, Jiang Jianbo, Jiang Kun. Austenite grain growth and continuous cooling phase transformation of EH40 ship plate steel[J]. Heat Treatment of Metals, 2023, 48(12): 189-193.

参考文献

[1]王纳, 张宇, 麻晗, 等. 大线能量钢板EH40轧制工艺和焊接性能研究[J]. 精密成形工程, 2022, 14(10): 78-84.
Wang Na, Zhang Yu, Ma Han, et al. Research on rolling process and welding properties of EH40 suitable for large heat input welding[J]. Precision Forming Engineering, 2022, 14(10): 78-84.
[2]安海玉, 郝鑫, 刘忠满, 等. 高强度船体结构用钢EH40生产实践[J]. 宽厚板, 2021, 27(2): 23-26.
An Haiyu, Hao Xin, Liu Zhongman, et al. Production practice of higher-Strength hull structural steel EH40[J]. Wide Thick Plate, 2021, 27(2): 23-26.
[3]张鑫. EH40特厚船板钢热变形行为与组织细化研究[D]. 鞍山: 辽宁科技大学, 2020.
Zhang Xin. Study on hot deformation behavior and microstructure refinement of EH40 extra thick ship plate steel[D]. Anshan: Liaoning University of Science and Technology, 2020.
[4]Varshney A, Sangal S, Kundu S, et al. Super strong and highly ductile low alloy multiphase steels consisting of bainite, ferrite and retained austenite[J]. Materials and Design, 2016, 95(8): 75-88.
[5]张迪. 贝氏体钢轨热处理工艺优化及疲劳断裂行为的研究[D]. 包头: 内蒙古科技大学, 2022.
Zhang Di. Study on heat treatment process optimization and fatigue fracture behavior of bainite rail[D]. Baotou: Inner Mongolia University of Science and Technology, 2022.
[6]郑丽丽, 彭军, 安胜利, 等. 贝氏体组织钢的研究与应用现状[J]. 内蒙古科技大学学报, 2019, 38(4): 344-348.
Zheng Lili, Peng Jun, An Shengli, et al. Research and application status of bainite microstructure steel[J]. Journal of Inner Mongolia University of Science and Technology, 2019, 38(4): 344-348.
[7]史远, 戴观文, 安治国, 等. 高强贝氏体非调质钢的奥氏体连续冷却相变[J]. 金属热处理, 2019, 44(2): 25-29.
Shi Yuan, Dai Guanwen, An Zhiguo, et al. Continuous cooling transformation of austenite for high strength bainitic non-quenched and tempered steel[J]. Heat Treatment of Metals, 2019, 44(2): 25-29.
[8]赵文波, 赵博深, 李广州, 等. 表面充氢对TA2在草酸溶液中腐蚀行为的影响[J]. 表面技术, 2020, 49(4): 339-346.
Zhao Wenbo, Zhao Boshen, Li Guangzhou, et al. Corrosion behaviors of TA2 in oxalic acid solution after surface hydrogen charging[J]. Surface Technology, 2020, 49(4): 339-346.
[9]李凡, 张恒, 陈其伟, 等. 冷却速度对厚重H型钢组织与性能的影响[J]. 安徽工业大学学报(自然科学版), 2022, 39(3): 262-267.
Li Fan, Zhang Heng, Chen Qiwei, et al. Effect of cooling rate on microstructure and properties of heavy H-beam[J]. Journal of Anhui University of Technology (Natural Science Edition), 2022, 39(3): 262-267.
[10]陈闯. 轧制及热处理对铁素体不锈钢组织、性能的影响[D]. 长春: 长春工业大学, 2022.
Chen Chuang. Effect ofrolling and heat treatment on microstructure and properties of ferritic stainless steel[D]. Changchun: Changchun University of Technology, 2022.
[11]Wang Xinwang, Fan Lixu, Yu Rong, et al. Low-temperature corrosion behavior of laser cladding metal-based alloy coatings on EH40 high-strength steel for icebreaker[J]. High Temperature Materials and Processes, 2022, 41(1): 434-448.
[12]秦汉伟, 肖炯, 王迎春, 等. 冷却条件对EH40钢板坯表层奥氏体晶粒长大的影响[J]. 中国冶金, 2022, 32(11): 65-72.
Qin Hanwei, Xiao Jiong, Wang Yingchun, et al. Effect of cooling conditions on surface austenite grain growth of EH40 steel slab[J]. China Metallurgy, 2022, 32(11): 65-72.
[13]Sun Zhihua, Wu Jiajia, Zhang Dun, et al. Influence of nitrate concentrations on EH40 steel corrosion affected by coexistence of Desulfovibrio desulfuricans and Pseudomonas aeruginosa bacteria[J]. Journal of Oceanology and Limnology, 2022, 40(4): 13-14.
[14]武绍文, 张彩军, 郑非凡, 等. EH40钢中第二相粒子对奥氏体尺寸的影响[J]. 金属热处理, 2019, 44(7): 88-92.
Wu Shaowen, Zhang Caijun, Zheng Feifan, et al. Effect of second phase particles on austenite grain size in EH40 steel[J]. Heat Treatment of Metals, 2019, 44(7): 88-92.
[15]张彩军, 武绍文, 吴哲, 等. 低碳钢铁素体相变析出行为[J]. 金属热处理, 2019, 44(6): 51-54.
Zhang Caijun, Wu Shaowen, Wu Zhe, et al. Precipitation behavior of ferrite transformation of low carbon steel[J]. Heat Treatment of Metals, 2019, 44(6): 51-54.
[16]Liu Chunquan, Peng Qichun, Xue Zhengliang. Study on rolling process and heat treatment of high strength ship plate steel EH40[J]. Metallurgical and Materials Engineering, 2018, 24(3): 200-201.
[17]范丽伟, 白锦函, 刘艳玲, 等. 安钢高强度船板EH40的研制实践[J]. 宽厚板, 2011, 17(2): 1-3.
Fan Liwei, Bai Jinhan, Liu Yanling, et al. Development practice of high strength ship plate EH40 at Anyang steel[J]. Wide and Thick Plate, 2011, 17(2): 1-3.

EH40船板钢奥氏体晶粒长大及连续冷却相变规律

Austenite grain growth and continuous cooling phase transformation of EH40 ship plate steel

PDF

可视化

摘要/Abstract

引用本文

使用本文

参考文献

相关文章 15

编辑推荐

Metrics

本文评价

[1]	戴钊, 郭智, 龙晓燕, 冯晓勇, 刘伟, 张福成, 李艳国. Si含量对高碳贝氏体钢微观组织与性能的影响[J]. 金属热处理, 2023, 48(9): 165-173.
[2]	陈海, 崔鼎. 42CrMo钢稀土微合金化对气体渗氮性能的影响[J]. 金属热处理, 2023, 48(9): 180-182.
[3]	周江, 项国东, 徐昶, 张显程, 夏咸喜, 朱保印, 赵彦芬, 金晓. 长时服役后HR3C钢析出相变化及对硬度的影响[J]. 金属热处理, 2023, 48(9): 203-207.
[4]	牛旭, 刘越, 王灼, 张雅静, 刘平祥. 钒含量对秸秆膨化机螺杆用Cr20高铬铸铁组织与性能的影响[J]. 金属热处理, 2023, 48(8): 8-15.
[5]	肖欣睿, 孙涛, 邓国勇, 彭洁, 苏海, 黎汝栋, 周杰, 王和斌. 添加Sc对6013铝合金组织和硬度的影响[J]. 金属热处理, 2023, 48(8): 16-23.
[6]	孙晓冉, 王程明, 赵楠, 白丽娟, 郑文跃. 4330-Nb抽油杆用钢的连续冷却转变特性分析[J]. 金属热处理, 2023, 48(8): 42-46.
[7]	郭亚非, 李志龙, 张博, 李洁, 庞庆海. Cr8支承辊用钢的连续冷却过程相变行为[J]. 金属热处理, 2023, 48(8): 47-51.
[8]	刘阳, 亓海全, 韩向楠, 李天然, 薛启河, 王为民, 刘安奇, 郭春成. 锻造温度与正火制度对SCr415H钢混晶缺陷和硬度的影响[J]. 金属热处理, 2023, 48(8): 80-86.
[9]	孙婷婷, 陈伟丽, 贾子龙. 等温温度对超低碳贝氏体钢组织和硬度的影响[J]. 金属热处理, 2023, 48(8): 94-98.
[10]	沈彬彬, 方金林. 厚规格耐磨钢厚度方向的硬度分布与控制[J]. 金属热处理, 2023, 48(8): 205-208.
[11]	张玺, 张浩然, 解芳, 闫基森, 武冰冰, 孔凡校. 热处理对GCr15轴承钢火焰喷涂+感应重熔复合熔涂层组织与性能的影响[J]. 金属热处理, 2023, 48(8): 242-247.
[12]	何炜, 王燕燕, 舒林森. 扫描速度对高速激光熔覆316L不锈钢涂层组织与性能的影响[J]. 金属热处理, 2023, 48(8): 248-253.
[13]	吴凡, 龚清华, 谢伟滨, 吴语, 陈辉明, 汪航. 微量Ni元素添加对Cu-Cr合金析出行为及性能的影响[J]. 金属热处理, 2023, 48(7): 49-53.
[14]	靖青秀, 韦丹丹, 魏渺, 杨雪晴, 肖翔鹏, 黄晓东. 形变热处理对Cu-6Ni-3Ti合金组织和性能的影响[J]. 金属热处理, 2023, 48(7): 91-96.
[15]	昝斌, 王奇, 徐宁, 王旭, 吴大莉. 热处理对GH4169合金组织及硬度的影响[J]. 金属热处理, 2023, 48(7): 193-196.