Yun-long Wang, Yin-li Chen, and Wei Yu, Effect of Cr/Mn segregation on pearlite–martensite banded structure of high carbon bearing steel, Int. J. Miner. Metall. Mater., 28(2021), No. 4, pp. 665-675. https://doi.org/10.1007/s12613-020-2035-y
Cite this article as:
Yun-long Wang, Yin-li Chen, and Wei Yu, Effect of Cr/Mn segregation on pearlite–martensite banded structure of high carbon bearing steel, Int. J. Miner. Metall. Mater., 28(2021), No. 4, pp. 665-675. https://doi.org/10.1007/s12613-020-2035-y
Research Article

Effect of Cr/Mn segregation on pearlite–martensite banded structure of high carbon bearing steel

+ Author Affiliations
  • Corresponding author:

    Wei Yu    E-mail: yuwei@nercar.ustb.edu.cn

  • Received: 2 January 2020Revised: 5 March 2020Accepted: 6 March 2020Available online: 8 March 2020
  • The effect of Cr/Mn segregation on the abnormal banded structure of high carbon bearing steel was studied by reheating and hot rolling. With the use of an optical microscope, scanning electron microscope, transmission electron microscope, and electron probe microanalyzer, the segregation characteristics of alloying elements in cast billet and their relationship with hot-rolled plate banded structure were revealed. The formation causes of an abnormal banded structure and the elimination methods were analyzed. Results indicate the serious positive segregation of C, Cr, and Mn alloy elements in the billet. Even distribution of Cr/Mn elements could not be achieved after 10 h of heat preservation at 1200°C, and the spacing of the element aggregation area increased, but the segregation index of alloy elements decreased. Obvious alloying element segregation characteristics are present in the banded structure of the hot-rolled plate. This distinct white band is composed of martensitic phases. The formation of this abnormal pearlite–martensite banded structure is due to the interaction between the undercooled austenite transformation behavior of hot-rolled metal and the segregation of its alloying elements. Under the air cooling after rolling, controlling the segregation index of alloy elements can reduce or eliminate the abnormal banded structure.

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  • [1]
    C.Y. Yang, Y.K. Luan, D.Z. Li, and Y.Y. Li, Effects of rare earth elements on inclusions and impact toughness of high-carbon chromium bearing steel, J. Mater. Sci. Technol., 35(2019), No. 7, p. 1298. doi: 10.1016/j.jmst.2019.01.015
    [2]
    A. Bhattacharyya, G. Subhash, and N. Arakere, Evolution of subsurface plastic zone due to rolling contact fatigue of M-50 NiL case hardened bearing steel, Int. J. Fatigue, 59(2014), p. 102. doi: 10.1016/j.ijfatigue.2013.09.010
    [3]
    Y.L. Zhang, H.Y. Liu, X.J. Ruan, G.Z. Li, L.G. Bai, and F.M. Wang, Microsegregation behaviors of alloy elements and their effects on the formation of banded structure in pinion steels, J. Univ. Sci. Technol. Beijing, 31(2009), No. S1, p. 199.
    [4]
    S.E. Offerman, N.H. van Dijk, M.T. Rekveldt, J. Sietsma, and S. van der Zwaag, Ferrite/pearlite band formation in hot rolled medium carbon steel, Mater. Sci. Technol., 18(2002), No. 3, p. 297. doi: 10.1179/026708301225000752
    [5]
    H. Wang, Y.P. Bao, M. Zhao, M. Wang, X.M. Yuan, and S. Gao, Effect of Ce on the cleanliness, microstructure and mechanical properties of high strength low alloy steel Q690E in industrial production process, Int. J. Miner. Metall. Mater, 26(2019), No. 11, p. 1372. doi: 10.1007/s12613-019-1871-0
    [6]
    S.W. Thompson and P.R. Howell, Factors influencing ferrite/pearlite banding and origin of large pearlite nodules in a hypoeutectoid plate steel, Mater. Sci. Technol., 8(1992), No. 9, p. 777. doi: 10.1179/mst.1992.8.9.777
    [7]
    J.A. Eckert, P.R. Howell, and S.W. Thompson, Banding and the nature of large, irregular pearlite nodules in a hot-rolled low-alloy plate steel: A second report, J. Mater. Sci., 28(1993), No. 16, p. 4412. doi: 10.1007/BF01154950
    [8]
    G. Krauss, Solidification, segregation, and banding in carbon and alloy steels, Metall. Mater. Trans. B, 34(2003), No. 6, p. 781. doi: 10.1007/s11663-003-0084-z
    [9]
    D.H. Herring, Segregation and banding in carbon and alloy steel, Industrial Heating, 2013 [2019-8-10]. https://www.industrialheating.com/articles/91318-segregation-and-banding-in-carbon-and-alloy-steel
    [10]
    Y. Ji, P. Lan, H. Geng, Q. He, C.J. Shang, and J.Q. Zhang, Behavior of spot segregation in continuously cast blooms and the resulting segregated band in oil pipe steels, Steel Res. Int., 89(2018), No. 3, art. No. 1700331. doi: 10.1002/srin.201700331
    [11]
    A.B. Sychkov, M.A. Zhigarev, S.Y. Zhukova, A.V. Perchatkin, and A.V. Peregudov, Effect of dendritic segregation in the continuous-cast semifinished product on the formation of the stucture of high-carbon-steel wire rod, Metallurgist., 52(2008), No. 5-6, p. 275. doi: 10.1007/s11015-008-9046-7
    [12]
    J.D. Verhoeven, A review of microsegregation induced banding phenomena in steels, J. Mater. Eng. Perform., 9(2000), No. 3, p. 286. doi: 10.1361/105994900770345935
    [13]
    C. Ma and H.W. Luo, Precipitation and evolution behavior of carbide during heat treatments of GCr15 bearing steel, J. Mater. Eng., 45(2017), No. 6, p. 97.
    [14]
    C.J. Shang, C.L. Miao, and S.V. Subramanian, Effect of processing parameters on crystal orientation of microstructure in high niobium-bearing microalloyed steel, J. Iron. Steel. Res. Int., 18(2011), No. S1, p. 466.
    [15]
    S.G. Zheng, C.L. Davis, and M. Strangwood, Elemental segregation and subsequent precipitation during solidification of continuous cast Nb–V–Ti high-strength low-alloy steels, Mater. Charact., 95(2014), p. 94. doi: 10.1016/j.matchar.2014.06.008
    [16]
    W. Yang, H.B. Tao, P. Zhao, H.C. Yan, and S.T. Qiu, Heredity of solidification structure and segregation of spring steel billet rolled, Iron Steel, 45(2010), No. 9, p. 32.
    [17]
    H. Guo, P. Zhou, A.M. Zhao, C. Zhi, R. Ding, and J.X. Wang, Effects of Mn and Cr contents on microstructures and mechanical properties of low temperature bainitic steel, J. Iron. Steel Res. Int., 24(2017), No. 3, p. 290. doi: 10.1016/S1006-706X(17)30042-0
    [18]
    C.J. McMahon, The role of solute segregation in promoting the hardenability of steel, Metall. Mater. Trans. A, 11(1980), No. 3, p. 531. doi: 10.1007/BF02654577
    [19]
    J.H. Liang, Z.Z. Zhao, D. Tang, N. Ye, S.F. Yang, and W.N. Liu, Improved microstructural homogeneity and mechanical property of medium manganese steel with Mn segregation banding by alternating lath matrix, Mater. Sci. Eng. A, 711(2018), p. 175. doi: 10.1016/j.msea.2017.11.046
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