留言板

尊敬的读者、作者、审稿人, 关于本刊的投稿、审稿、编辑和出版的任何问题, 您可以本页添加留言。我们将尽快给您答复。谢谢您的支持!

姓名
邮箱
手机号码
标题
留言内容
验证码
Volume 21 Issue 12
Dec.  2014
数据统计

分享

计量
  • 文章访问数:  374
  • HTML全文浏览量:  121
  • PDF下载量:  14
  • 被引次数: 0
Jia-hua Liu, Lei Wang, Yang Liu, Xiu Song, Jiong Luo, and Dan Yuan, Fracture toughness and fracture behavior of SA508-III steel at different temperatures, Int. J. Miner. Metall. Mater., 21(2014), No. 12, pp. 1187-1195. https://doi.org/10.1007/s12613-014-1026-2
Cite this article as:
Jia-hua Liu, Lei Wang, Yang Liu, Xiu Song, Jiong Luo, and Dan Yuan, Fracture toughness and fracture behavior of SA508-III steel at different temperatures, Int. J. Miner. Metall. Mater., 21(2014), No. 12, pp. 1187-1195. https://doi.org/10.1007/s12613-014-1026-2
引用本文 PDF XML SpringerLink

Fracture toughness and fracture behavior of SA508-III steel at different temperatures

  • 通讯作者:

    Lei Wang    E-mail: wanglei@mail.neu.edu.cn

  • The fracture toughness of SA508-III steel was studied in the temperature range from room temperature to 320°C using the J-integral method. The fracture behavior of the steel was also investigated. It was found that the conditional fracture toughness (JQ) of the steel first decreased and then increased with increasing test temperature. The maximum and minimum values of JQ were 517.4 kJ/m2 at 25°C and 304.5 kJ/m2 at 180°C, respectively. Dynamic strain aging (DSA) was also observed to occur when the temperature exceeded 260°C with a certain strain rate. Both the dislocation density and the number of small dislocation cells effectively increased because of the occurrence of DSA; as a consequence, crack propagation was more strongly inhibited in the steel. Simultaneously, an increasing number of fine carbides precipitated under high stress at temperatures greater than 260°C. Thus, the deformation resistance of the steel was improved and the JQ was enhanced.
  • Fracture toughness and fracture behavior of SA508-III steel at different temperatures

    + Author Affiliations
    • The fracture toughness of SA508-III steel was studied in the temperature range from room temperature to 320°C using the J-integral method. The fracture behavior of the steel was also investigated. It was found that the conditional fracture toughness (JQ) of the steel first decreased and then increased with increasing test temperature. The maximum and minimum values of JQ were 517.4 kJ/m2 at 25°C and 304.5 kJ/m2 at 180°C, respectively. Dynamic strain aging (DSA) was also observed to occur when the temperature exceeded 260°C with a certain strain rate. Both the dislocation density and the number of small dislocation cells effectively increased because of the occurrence of DSA; as a consequence, crack propagation was more strongly inhibited in the steel. Simultaneously, an increasing number of fine carbides precipitated under high stress at temperatures greater than 260°C. Thus, the deformation resistance of the steel was improved and the JQ was enhanced.
    • loading

    Catalog


    • /

      返回文章
      返回