桁架用Nb-Mo微合金中锰钢强化机理及碳化物析出行为

doi:10.13251/j.issn.0254-6051.2024.03.033

金属热处理 ›› 2024, Vol. 49 ›› Issue (3): 198-203.DOI: 10.13251/j.issn.0254-6051.2024.03.033

桁架用Nb-Mo微合金中锰钢强化机理及碳化物析出行为

刘敏¹, 郑志鹏², 甘利红¹, 刘胤辰¹, 刘震¹, 张阳³, 冯波³, 刘春泉⁴

1.国网湖北省电力有限公司咸宁供电公司, 湖北咸宁 437000;
2.湖北香城智能机电研究院有限公司, 湖北咸宁 437000;
3.湖北科技学院工程技术研究院, 湖北咸宁 437000;
4.湖南工学院材料科学与工程学院, 湖南衡阳 421002

收稿日期:2023-08-31 修回日期:2023-12-20 出版日期:2024-03-25 发布日期:2024-04-24
通讯作者: 张阳,高级工程师,博士,E-mail: 845786298@qq.com
作者简介:刘敏(1970—),男,高级工程师,主要研究方向为电力系统规划、输变电工程施工及变电设备运行等,E-mail: 1257693270@qq.com。
基金资助:
湖北省自然科学基金青年面上项目(2021CFB009);湖南省科技人才托举工程项目“小荷”科技人才专项(2023TJ-X10);湖南省自然科学基金( 2023JJ50108);湖南工学院青年自科培育项目(2022HY007)

Strengthening mechanism and carbide precipitation behavior of Nb-Mo microalloyed medium manganese steel for crossing frame truss

Liu Min¹, Zheng Zhipeng², Gan Lihong¹, Liu Yinchen¹, Liu Zhen¹, Zhang Yang³, Feng Bo³, Liu Chunquan⁴

1. Xianning Power Supply Company of State Grid Hubei Electric Power Co., Ltd., Xianning Hubei 437000, China;
2. Hubei Xiangcheng Intelligent Electromechanical Research Institute Co., Ltd., Xianning Hubei 437000, China;
3. Institute of Engineering and Technology, Hubei University of Science and Technology, Xianning Hubei 437000, China;
4. School of Materials Science and Engineering, Hunan Institute of Technology, Hengyang Hunan 421002, China

Received:2023-08-31 Revised:2023-12-20 Online:2024-03-25 Published:2024-04-24

摘要/Abstract

摘要： 探讨了自制移动式伞型跨越架桁架用Nb-Mo微合金中锰钢在快速加热淬火和奥氏体逆相变(RH-ART)处理后的强化机理和碳化物析出行为。结果表明,微合金试验钢中的(Nb, Mo)C不仅在铁素体晶粒内部以及位错线上析出,起到阻碍位错移动的作用,进而使得试验钢强度提升;并且(Nb, Mo)C在奥氏体与铁素体的晶界处析出,起到拖拽作用,抑制了奥氏体晶粒粗化速率。同时,在快速加热淬火和奥氏体逆相变处理后,大量的纳米级渗碳体析出,这有利于增加中锰钢中残留奥氏体含量。此外,在690 ℃温度下进行奥氏体逆相变,此时基体存在一定量的亚稳态碳化物颗粒,这有助于提高奥氏体的形核速率,还降低了C的平均扩散距离,即提高了奥氏体的生长速率,从而获得更多含量的残留奥氏体。试验钢具有超过49%的残留奥氏体含量,展现出了拉伸强度为779 MPa,断后伸长率为77.7%的优异综合力学性能。

关键词: 跨越架, 中锰钢, 强韧机制, 纳米碳化物, 析出物

Abstract: After rapid heating quenching and austenite reverse phase transformation (RH-ART) treatment, the strengthening mechanism and carbide precipitation behavior of Nb-Mo microalloyed medium manganese steel used for self-made mobile umbrella type crossing frame truss were investigated. The results show that (Nb, Mo)C in the microalloyed experimental steel not only precipitates inside the ferrite grains and on dislocation lines, acting as a barrier to dislocation movement, thereby improving the strength of the experimental steel; but also precipitates at the grain boundaries between austenite and ferrite, playing a dragging effect role and suppressing the austenite grain coarsening. Meanwhile, after rapid heating quenching and austenite reverse phase transformation treatment, a large amount of nanoscale cementite precipitates, which is beneficial to increase the retained austenite content in medium manganese steel. In addition, when austenite reverse phase transformation is carried out at a temperature of 690 ℃, there is a certain amount of metastable carbide particles in the matrix, which helps to improve the nucleation rate of austenite and also reduces the average diffusion distance of C, which increases the growth rate of austenite and obtains more retained austenite content. The tested steel exhibites excellent comprehensive mechanical properties with a retained austenite content of more than 49%, a tensile strength of 779 MPa and an elongation at break of 77.7%.

Key words: crossing frame, medium Mn steel, strengthening mechanism, nanometer-sized carbides, precipitation

中图分类号:

TG156

刘敏, 郑志鹏, 甘利红, 刘胤辰, 刘震, 张阳, 冯波, 刘春泉. 桁架用Nb-Mo微合金中锰钢强化机理及碳化物析出行为[J]. 金属热处理, 2024, 49(3): 198-203.

Liu Min, Zheng Zhipeng, Gan Lihong, Liu Yinchen, Liu Zhen, Zhang Yang, Feng Bo, Liu Chunquan. Strengthening mechanism and carbide precipitation behavior of Nb-Mo microalloyed medium manganese steel for crossing frame truss[J]. Heat Treatment of Metals, 2024, 49(3): 198-203.

参考文献

[1]尹建清, 刘诗慧, 夏炎, 等. 电力线路跨越电气化铁路跨越架体材料和结构受力研究[J]. 铁路工程技术与经济, 2023, 38(1): 27-33.
Yin Jianqing, Liu Shihui, Xia Yan, et al. Study on the structural forces and materials of power line crossing electrified railway frame[J]. Railway Engineering Technology and Economy, 2023, 38(1): 27-33.
[2]韩先才, 孙昕, 陈海波, 等. 中国特高压交流输电工程技术发展综述[J]. 中国电机工程学报, 2020, 40(14): 4371-4386.
Han Xiancai, Sun Xin, Chen Haibo, et al. A review of the development of ultra-high voltage AC transmission engineering technology in China[J]. Proceedings of the CSEE, 2020, 40 (14): 4371-4386.
[3]乔利霞, 郭健. 浅谈电力线路跨越高速公路架线施工[J]. 电力工程技术创新, 2022, 3(3): 47-49.
Qiao Lixia, Guo Jian. Discussion on the construction of electric power line crossing expressway[J]. Power Engineering Technology Innovation, 2022, 3 (3): 47-49.
[4]刘铁, 赵东, 孙田鸽, 等. 两种材质输电线路施工跨越架的力学对比分析[J]. 安徽建筑大学学报, 2018, 26(4): 62-66.
Liu Tie, Zhao Dong, Sun Tiange, et al. Contrast and analysis to materials of crossing frame for transmission line stringing[J]. Journal of Anhui Institute of Architecture and Industry, 2018, 26(4): 62-66.
[5]Cheng L, Chen X, Li Z B, et al. Comprehensive evaluation method of transmission line operating status based on improved combination weighting evaluation model[J]. Energy Reports, 2022, 8: 387-397.
[6]罗杰, 罗义华, 李亮, 等. 移动展开式跨越架的设计与优化[J]. 合肥工业大学学报: 自然科学版, 2021, 44(7): 947-952.
Luo Jie, Luo Yihua, Li Liang, et al. Design and optimization of mobile deployable crossing frame[J]. Journal of Hefei University of Technology: Natural Science, 2021, 44 (7): 947-952.
[7]梁益嘉, 陈强, 吴钢, 等. 车载移动式跨越架的研制[J]. 长江大学学报(自科版), 2016, 13(28): 50-54.
Liang Yijia, Chen Qiang, Wu Gang, et al. Development of a vehicle-mounted mobile crossing frame[J]. Journal of Yangtze University (Natural Science Edition), 2016, 13(28): 50-54.
[8]Liu C, Peng Q, Xue Z, et al. Effect of different heat treatment processes on microstructure evolution and tensile properties of hot-rolled medium-Mn steel[J]. Transactions of the Indian Institute of Metals, 2020, 73: 2221-2229.
[9]Pan H, Ding H, Cai M, et al. Precipitation behavior and austenite stability of Nb or Nb-Mo micro-alloyed warm-rolled medium-Mn steels[J]. Materials Science and Engineering A, 2019, 766: 138371.
[10]黄辉辉. Ti-Nb-Mo复合微合金化铁素体钢第二相析出行为及强化机理研究[D]. 武汉: 武汉科技大学, 2018.
Huang Huihui. Study on second phase precipitation behavior and strengthening mechanism of Ti-Nb-Mo micro-alloyed ferritic steel[D]. Wuhan: Wuhan University of Science and Technology, 2018.
[11]Jiang L, Marceau R K W, Dorin T, et al. Effect of molybdenum on phase transformation and microstructural evolution of strip cast steels containing niobium[J]. Journal of Materials Science, 2019, 54(2): 1769-1784.
[12]Cao J, Yong Q, Liu Q, et al. Precipitation of MC phase and precipitation strengthening in hot rolled Nb-Mo and Nb-Ti steels[J]. Journal of Materials Science, 2007, 42: 10080-10084.
[13]Uemori R, Chijiiwa R, Tamehiro H, et al. AP-FIM study on the effect of Mo addition on microstructure in Ti-Nb steel[J]. Applied Surface Science, 1994, 76: 255-260.
[14]Cai M H, Huang H S, Pan H J, et al. Microstructure and tensile properties of a Nb-Mo microalloyed 6.5Mn alloy processed by intercritical annealing and quenching and partitioning[J]. Acta Metallurgica Sinica (English Letters), 2017, 30: 665-674.
[15]Luo H W, Qiu C H, Dong H, et al. Experimental and numerical analysis of influence of carbide onaustenitisation kinetics in 5Mn TRIP steel[J]. Materials Science and Technology, 2014, 30(11): 1367-1377.
[16]Luo H, Liu J, Dong H. A novel observation on cementite formed duringintercritical annealing of medium Mn steel[J]. Metallurgical and Materials Transactions A, 2016, 47: 3119-3124.
[17]Morsdorf L, Jeannin O, Barbier D, et al. Multiple mechanisms of lath martensite plasticity[J]. Acta Materialia, 2016, 121: 202-214.
[18]Hong S C, Lim S H, Hong H S, et al. Effects of Nb on strain induced ferrite transformation in C-Mn steel[J]. Materials Science and Engineering A, 2003, 355(1/2): 241-248.
[19]Fu J, Li G, Mao X, et al. Nanoscale cementite precipitates and comprehensive strengthening mechanism of steel[J]. Metallurgical and Materials Transactions A, 2011, 42: 3797-3812.
[20]苑少强, 梁国俐, 武会宾. 低碳钢中微合金元素Nb, Mo在析出过程中的相互作用[C]//第九次全国热处理大会论文集(二), 2007.
Yuan Shaoqiang, Liang Guoli, Wu Huibin The interaction between microalloying elements Nb and Mo in low carbon steel during precipitation[C]//Proceedings of the Ninth National Heat Treatment Conference (II), 2007.
[21]Zhang Z, Sun X, Yong Q, et al. Precipitation behavior of nanometer-sized carbides in Nb-Mo microalloyed high strength steel and its strengthening mechanism[J]. Acta Metallurgica Sinica, 2016, 52(4): 410-418.
[22]蔡志辉. 高强塑性中锰钢的组织演变及力学性能的研究[D]. 沈阳: 东北大学, 2015.
Cai Zhihui. Study on microstructure evolution and mechanical properties of medium manganese steels with superior strength and ductility[D]. Shenyang: Northeastern University, 2015.
[23]Christian J W. The Theory of Transformations in Metals and Alloys[M]. Oxford: Pergamon Press, 1965.
[24]Lee S, Lee S J, De Cooman B C. Austenite stability of ultrafine-grained transformation-induced plasticity steel with Mn partitioning[J]. Scripta Materialia, 2011, 65(3): 225-228.
[25]彭龙生, 刘春泉, 熊芬, 等. 轧制方式及热处理工艺对中锰钢组织和性能的影响[J]. 金属热处理, 2023, 48(8): 106-112.
Peng Longsheng, Liu Chunquan, Xiong Fen, et al. Effects of rolling method and heat treatment process on microstructure and properties of medium-Mn steel[J]. Heat Treatment of Metals, 2023, 48(8): 106-112.
[26]祁晓亮, 李岩, 定巍, 等. 含Al中锰TRIP钢原始组织对临界退火后组织与力学性能的影响[J]. 金属热处理, 2022, 47(4): 24-29.
Qi Xiaoliang, Li Yan, Ding Wei, et al. Effect of original microstructure of medium manganese TRIP steel containing Al on microstructure and mechanical properties after intercritical annealing[J]. Heat Treatment of Metals, 2022, 47 (4): 24-29.

桁架用Nb-Mo微合金中锰钢强化机理及碳化物析出行为

Strengthening mechanism and carbide precipitation behavior of Nb-Mo microalloyed medium manganese steel for crossing frame truss

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