Please wait a minute...
材料导报  2020, Vol. 34 Issue (14): 14175-14180    https://doi.org/10.11896/cldb.19060045
  金属与金属基复合材料 |
Nb微合金化对Q500MPa级热轧H型钢组织和性能的影响
黄章1, 杜传治2, 方金林2, 于浩1, 黎淑英1, 宋成浩3, 段晓妮1
1 北京科技大学材料科学与工程学院, 北京 100083
2 山东钢铁股份有限公司莱芜分公司技术中心, 莱芜 271104
3 东莞理工学院机械工程学院, 东莞 523808
Effect of Niobium Micro-alloyed on Microstructures and Mechanical Properties of Q500MPa Hot-Rolled H-beam Steel
HUANG Zhang1, DU Chuanzhi2, FANG Jinlin2, YU Hao1, LI Shuying1, SONG Chenghao3, DUAN Xiaoni1
1 School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, China
2 Technology Center, Laiwu Branch of Shandong Iron and Steel Co., Ltd., Laiwu 271104, China
3 School of Mechanical Engineering, Dongguan University of Technology, Dongguan 523808, China
下载:  全 文 ( PDF ) ( 4839KB ) 
输出:  BibTeX | EndNote (RIS)      
摘要 采用纳米压痕试验、电子背散射衍射、透射电镜等研究Nb元素对热轧H型钢组织和性能的影响。结果表明,H型钢中添加0.025%(质量分数,下同)的Nb,在轧制和冷却工艺相同的情况下,屈服强度和-20 ℃低温冲击功分别为552 MPa、102 J,相比不含Nb的试样分别提升了17.7%和20.0%,且晶粒尺寸从5 μm细化至4 μm。通过热力学计算发现铁素体基体内形成的复合析出物(Nb1-xVx)C与基体的界面能比NbC与基体的界面能更小且形核驱动力更大,因此更易促进Nb以复合析出物形式析出,且纳米析出物平均尺寸从16.3 nm减小至11.46 nm,体积分数从0.053%提高至0.108%,析出强化由55 MPa增加至102 MPa,铁素体硬度由247HV提升至279HV,添加Nb元素后析出强化贡献增量较细晶强化增量高18 MPa。
服务
把本文推荐给朋友
加入引用管理器
E-mail Alert
RSS
作者相关文章
黄章
杜传治
方金林
于浩
黎淑英
宋成浩
段晓妮
关键词:  析出强化  Nb微合金化  组织和力学性能  界面能    
Abstract: The effect of Nb on the microstructures and properties of H-beam steel was investigated by nanoindentation test,, EBSD and transmission electron microscope. The results show that yield strength and low temperature impact energy at -20 ℃ reaches 552 MPa and 102 J of H-beam steel containing 0.025wt% Nb, which are 17.7% and 20.0% higher than those without Nb, respectively, under the same rolling and coo-ling condition. In addition, grain size is refined from 5 μm to 4 μm. The interface energy between matrix and (Nb1-xVx)C formed in ferrite matrix is smaller than that between NbC and matrix by thermodynamic calculation, which promote the precipitation of Nb composite precipitates. And the average size of nano-precipitates in ferrite matrix decreases from 16.3 nm to 11.46 nm, and the volume fraction of which increases from 0.053% to 0.108%, as a result of precipitation strengthening increasing from 55 MPa to 102 MPa. The hardness of ferrite matrix increases from 247HV to 279HV, and the contribution of precipitation strengthening after adding Nb is 18 MPa, which is greater than that of fine grain strengthening.
Key words:  precipitation strengthening    Nb micro-alloyed    microstructures and mechanical properties    interface energy
               出版日期:  2020-07-25      发布日期:  2020-07-14
ZTFLH:  TG161  
作者简介:  黄章,在读硕士研究生,2017年毕业于南昌航空大学,工学学士。
于浩,北京科技大学教授,博士研究生导师。2003年研究生毕业于北京科技大学压加系留校至今。2004年7月入选北京市科技新星奖励计划,2005年10月获霍英东青年基金优选资助课题资助,2010年获第四届中国金属学会冶金青年科技奖。发表论文120余篇,申请国家专利15项。研究领域主要为轧制技术与组织性能的智能控制;钢的组织性能综合控制理论与应用研究及新产品开发;金属塑性加工与成形过程模拟仿真。
引用本文:    
黄章, 杜传治, 方金林, 于浩, 黎淑英, 宋成浩, 段晓妮. Nb微合金化对Q500MPa级热轧H型钢组织和性能的影响[J]. 材料导报, 2020, 34(14): 14175-14180.
HUANG Zhang, DU Chuanzhi, FANG Jinlin, YU Hao, LI Shuying, SONG Chenghao, DUAN Xiaoni. Effect of Niobium Micro-alloyed on Microstructures and Mechanical Properties of Q500MPa Hot-Rolled H-beam Steel. Materials Reports, 2020, 34(14): 14175-14180.
链接本文:  
http://www.mater-rep.com/CN/10.11896/cldb.19060045  或          http://www.mater-rep.com/CN/Y2020/V34/I14/14175
1 Du W, Li H L. Petroleum Tubular Goods and Instruments, 2016, 2(5),1(in Chinese).
杜伟, 李鹤林. 石油管材与仪器, 2016, 2(5),1.
2 Xu W X, Pan H B, et al. Heat Treatment of Metals, 2016, 41(9),89(in Chinese).
许文喜, 潘红波, 等. 金属热处理, 2016, 41(9),89.
3 Fu D F, Leng Y, Gao W L. Materials Reports B: Research Papers, 2018, 32(1),238(in Chinese).
傅定发, 冷宇, 高文理. 材料导报:研究篇, 2018, 32(1),238.
4 Chen Y, Zhang D, Liu Y, et al. Materials Characterization, 2013, 84, 232.
5 Felfer P J, Killmore C R, Williams J G, et al. Acta Materialia, 2012, 60(13-14), 5049.
6 Pereloma E V, Kostryzhev A G, AlShahrani A, et al. Scripta Materialia, 2014, 75, 74.
7 Zargaran A, Kim H S, Kwak J H, et al. Scripta Materialia, 2014, 89, 37.
8 Jung J G, Park J S, Kim J, et al. Materials Science and Engineering: A, 2011, 528(16-17), 5529.
9 Li X, Wu P, Yang R, et al. Materials & Design, 2017, 115, 165.
10 Xie K Y, Zheng T, Cairney J M, et al. Scripta Materialia, 2012, 66(9),710.
11 Kang Y L, Yu H, Wang K L, et al. Iron and Steel, 2003, 38(8),20(in Chinese).
康永林, 于浩, 王克鲁, 等. 钢铁, 2003, 38(8),20.
12 Zhou L Y, Liu Y Z, Fang Y, et al. Iron and Steel, 2008, 43(7),76(in Chinese).
周乐育, 刘雅政, 方圆,等. 钢铁, 2008, 43(7),76.
13 Zheng S, Davis C, Strangwood M. Materials Characterization, 2014, 95, 94.
14 Bu F Z, Wang X M, Yang S W, et al. Materials Science and Enginee-ring: A, 2015, 620, 22.
15 Zhang Z J, Chen G, Liu Z Q. et al. Shanghai Metals, 2018, 40(6),16(in Chinese).
张志建, 陈刚, 刘志桥, 等. 上海金属, 2018, 40(6),16.
16 Yong Q L. Second phase in structural steels, Metallurgical Industry Press, China, 2006(in Chinese).
雍岐龙. 钢铁材料中的第二相, 冶金工业出版社, 2006.
17 Li X, Wang Z, Deng X, et al. Materials Letters, 2016, 182,6.
18 Pierce D T, Coughlin D R, Williamson D L, et al. Acta Materialia, 2015, 90,417.
19 Liu J, Yu H, Zhou T, et al. Materials Science and Engineering: A, 2014, 619,212.
20 Argon A S, Bikerman J J. Physics of Strength and Plasticity, 1971, 24(8),60.
21 Chin G Y, Mammel W L. Metallurgical and Materials Transactions B,1967,239,1400.
22 Kaye G W C, Laby T H. Physics Today, 1960, 13,56.
23 Kamikawa N, Sato K, Miyamoto G, et al. Acta Materialia, 2015, 83,383.
24 Moon J, Kim S, Jang J, et al. Materials Science and Engineering: A, 2008, 487(1-2),552.
25 Mazaheri Y, Kermanpur A, Najafizadeh A. Materials Science and Engineering: A, 2015, 639,8.
26 Oliver W C, Pharr G M. Journal of Materials Research, 1992, 7(6),1564.
27 Zheng S, Davis C. Materials Characterization, 2014, 95,94.
[1] 张洋, 张海燕, 陈蕴博, 王大鹏, 陈林, 刘晓萍. 热处理对热压制备Al-Cu-Mg/SiCp制动耐磨复合材料组织及磨损性能的影响[J]. 材料导报, 2020, 34(Z1): 356-360.
[2] 田亚强, 黎旺, 郑小平, 宋进英, 魏英立, 陈连生. 两相区退火热轧中锰钢碳化物析出行为与组织性能研究[J]. 材料导报, 2019, 33(16): 2765-2770.
[3] 邓燕君, 黄光杰, 曹玲飞, 吴晓东, 黄利. 预变形对Al-Cu-Li-Mn-Zr合金的第二相析出及力学性能的影响[J]. 《材料导报》期刊社, 2018, 32(4): 569-573.
No Suggested Reading articles found!
Viewed
Full text


Abstract

Cited

  Shared   
  Discussed