Thermo-stability of ultra-fine non-equilibrium microstructures

Huibin Wu, Shanwu Yang, Aimin Guo, Shaoqiang Yuan, Chengjia Shang, Xinlai He

分享

计量
  • 文章访问数:  173
  • HTML全文浏览量:  61
  • PDF下载量:  9
  • 被引次数: 0

目录

HTML全文
    资源附件(0)
    相关文章
    施引文献

    Cite this article as:

    Huibin Wu, Shanwu Yang, Aimin Guo, Shaoqiang Yuan, Chengjia Shang, and Xinlai He, Thermo-stability of ultra-fine non-equilibrium microstructures, J. Univ. Sci. Technol. Beijing , 11(2004), No. 4, pp.338-342.
    Huibin Wu, Shanwu Yang, Aimin Guo, Shaoqiang Yuan, Chengjia Shang, and Xinlai He, Thermo-stability of ultra-fine non-equilibrium microstructures, J. Univ. Sci. Technol. Beijing , 11(2004), No. 4, pp.338-342.
    shu
    引用本文 PDF XML SpringerLink
    Materials

    Thermo-stability of ultra-fine non-equilibrium microstructures

    • Materials Science and Engineering School, University of Science and Technology Beijing, Beijing 100083, China

    基金项目: 

    The work was financially supported by the National Key Basic Research and Development Program of China (No.G1998061507) and CITIC-CBMM (No.2002RMJS-KY002).

      通信作者:

      Huibin Wu E-mail: huibinwu@163.com

    中文摘要

    The evolution of the microstructures and hardness of a bainitic plate steel during tempering at 650℃ has been investigated.The steel was manufactured by RPC (relaxation-precipitation controlling phase transformation) technique. A part of the plate was reheated to 930℃ and held for 1 h before quenched into water (RQ). No obvious change was detected by means of optical microscopy in the RPC steel tempering for 0.5 h, while dislocation cells were formed inside the bainite laths, accompanied by an obvious drop of hardness. The bainite laths started to coalesce in some regions, but the sample hardness kept nearly constant during tempering from 1 to 7 h. With further tempering, polygonal ferrite was formed in local regions while the hardness decreased dramatically. The RQ samples softened faster during tempering and finally transformed into the polygonal ferrite completely. These results indicate that the thermo-stability of fine non-equilibrium microstructures is tightly related to their history.

     

    Materials

    Thermo-stability of ultra-fine non-equilibrium microstructures

    Author Affilications

      • Materials Science and Engineering School, University of Science and Technology Beijing, Beijing 100083, China

    • Funds: 

      The work was financially supported by the National Key Basic Research and Development Program of China (No.G1998061507) and CITIC-CBMM (No.2002RMJS-KY002).

    • Received: 08 June 2003;
    The evolution of the microstructures and hardness of a bainitic plate steel during tempering at 650℃ has been investigated.The steel was manufactured by RPC (relaxation-precipitation controlling phase transformation) technique. A part of the plate was reheated to 930℃ and held for 1 h before quenched into water (RQ). No obvious change was detected by means of optical microscopy in the RPC steel tempering for 0.5 h, while dislocation cells were formed inside the bainite laths, accompanied by an obvious drop of hardness. The bainite laths started to coalesce in some regions, but the sample hardness kept nearly constant during tempering from 1 to 7 h. With further tempering, polygonal ferrite was formed in local regions while the hardness decreased dramatically. The RQ samples softened faster during tempering and finally transformed into the polygonal ferrite completely. These results indicate that the thermo-stability of fine non-equilibrium microstructures is tightly related to their history.

     

      HTML全文
      • 资源附件(0)
      • 相关文章
      施引文献

    Relative Articles

    Int. J. Miner. Metall. Mater., 2014, 21(5): 438-447.

    PDF View details

    Lin-qing Xu, Dan-tian Zhang, Yong-chang Liu, Bao-qun Ning, Zhi-xia Qiao, Ze-sheng Yan, Hui-jun Li. Precipitation behavior and martensite lath coarsening during tempering of T/P92 ferritic heat-resistant steel [J]. 矿物冶金与材料学报（英文版）. DOI: 10.1007/s12613-014-0927-4

    View details

    Int. J. Miner. Metall. Mater., 2014, 21(3): 279-288.

    PDF View details

    Da-kun Xu, Yong-chang Liu, Zong-qing Ma, Hui-jun Li, Ze-sheng Yan. Structural refinement of 00Cr13Ni5Mo2 supermartensitic stainless steel during single-stage intercritical tempering [J]. 矿物冶金与材料学报（英文版）. DOI: 10.1007/s12613-014-0906-9

    View details

    Int. J. Miner. Metall. Mater., 2011, 18(5): 543-550.

    PDF View details

    Li-jun Wang, Qing-wu Cai, Hui-bin Wu, Wei Yu. Effects of Si on the stability of retained austenite and temper embrittlement of ultrahigh strength steels [J]. 矿物冶金与材料学报（英文版）. DOI: 10.1007/s12613-011-0475-0

    View details

    Int. J. Miner. Metall. Mater., 2008, 15(6): 688-695.

    PDF View details

    Jia Guo, Aimin Guo, Hui Guo, Ying Wang, Jing Li, Xinlai He. Effect of zirconium addition on the austenite grain coarsening behavior and mechanical properties of 900 MPa low carbon bainite steel [J]. 矿物冶金与材料学报（英文版）. DOI: 10.1016/S1005-8850(08)60272-8

    View details

    Int. J. Miner. Metall. Mater., 2008, 15(1): 38-42.

    PDF View details

    Aimin Guo, Xinli Song, Jinquan Tang, Zexi Yuan. Effect of tempering temperature on the mechanical properties and microstructure of an copper-bearing low carbon bainitic steel [J]. 矿物冶金与材料学报（英文版）. DOI: 10.1016/S1005-8850(08)60008-0

    View details

    Int. J. Miner. Metall. Mater., 2007, 14(6): 501-506.

    PDF View details

    Ying Yang, Chaobin Lai, Fuming Wang, Zhanbing Yang, Bo Song. Effect of inclusions on the formation of acicular ferrite in Ti-bearing non quenched-and-tempered steel [J]. 矿物冶金与材料学报（英文版）. DOI: 10.1016/S1005-8850(07)60117-0

    View details

    Int. J. Miner. Metall. Mater., 2005, 12(5): 406-409.

    PDF View details

    Xuemin Wang, Bing Cao, Chengjia Shang, Xueyi Liu, Xinlai He. Subgrains and boron distribution of low carbon bainitic steels [J]. 矿物冶金与材料学报（英文版）.

    View details

    Int. J. Miner. Metall. Mater., 2004, 11(3): 230-234.

    PDF View details

    Shanwu Yang, Shaoqiang Yuan, Xuemin Wang, Huibin Wu, Xinlai He. Behavior of precipitation in bainitic steel during relaxation processing of RPC technique [J]. 矿物冶金与材料学报（英文版）.

    View details

    Int. J. Miner. Metall. Mater., 2002, 9(3): 193-196.

    PDF View details

    Xuemin Wang, Chengjia Shang, Shanwu Yang, Xinlai He, Huibin Wu. Optimization of RPC technique for refining the intermediate transformation microstructure [J]. 矿物冶金与材料学报（英文版）.

    View details

    Int. J. Miner. Metall. Mater., 2001, 8(2): 119-122.

    PDF View details

    Shanwu Yang, Chengjia Shang, Xinlai He, Xuemin Wang, Yi Yuan. Stability of Ultra-fine Microstructures during Tempering [J]. 矿物冶金与材料学报（英文版）.

    View details

    /

    返回文章
    返回

    版权所有 © 《矿物冶金与材料学报（英文）》编辑部

    地址: 北京市海淀区学院路30号邮政编码: 100083

    电子邮箱：journal@ustb.edu.cn电话：+86-10-62332875

    本系统由北京仁和汇智信息技术有限公司开发      百度统计