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Microstructure transformation behaviour of 610 MPa HSLA steel plate for 150000 m3 oil storage tank construction

  • Wei-hua Sun
  • Guo-dong Wang
  • Ji-ming Zhang
  • Dian-xiu Xia
Article

Abstract

Static and dynamic continuous cooling transformations (CCT) of 610 MPa HSLA steel plate for 150000m3 oil storage tank construction were measured by using an MMS200 thermomechanical simulation system. It was found that with the increase in cooling rate, the proeutectoid ferrite, pearlite, granular bainite, and lath bainite appeared in the transformed microstructure. Compared with those of static CCT, the transformation points of acicular ferrite, granular bainite, and lath bainite in the dynamic CCT curve were shifted to the left, resulting in an increased acicular ferrite and bainite transformation area.

Key words

steel plate oil storage microstructure transformation CCT curve tempering 

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Copyright information

© China Iron and Steel Research Institute Group 2010

Authors and Affiliations

  • Wei-hua Sun
    • 1
    • 2
  • Guo-dong Wang
    • 1
  • Ji-ming Zhang
    • 2
  • Dian-xiu Xia
    • 2
  1. 1.State Key Laboratory of Rolling and AutomationNortheastern UniversityShenyang, LiaoningChina
  2. 2.Jigang Group Co LtdJinan, ShandongChina

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