Microstructure Transformation Behaviour of 610 MPa HSLA Steel Plate for 150000 m~3 Oil Storage Tank Construction

钢铁研究学报(英文版), 2010, 17(2): 48-52.

^1, , ^2, , ^3, , ^4,

1.State Key Laboratory of Rolling and Automation,Northeastern University,Shenyang 110004,Liaoning,China;Jigang Group Co Ltd,Jinan 250101,Shandong,China

2.State Key Laboratory of Rolling and Automation,Northeastern University,Shenyang 110004,Liaoning,China

3.Jigang Group Co Ltd,Jinan 250101,Shandong,China

4.Jigang Group Co Ltd,Jinan 250101,Shandong,China

基金项目: National Key Technology Research and Development Program of China(2007BAE51B07)

Microstructure Transformation Behaviour of 610 MPa HSLA Steel Plate for 150000 m~3 Oil Storage Tank Construction

SUN Wei-hua ^1, , WANG Guo-dong ^2, , ZHANG Ji-ming ^3, , XIA Dian-xiu ^4,

1.State Key Laboratory of Rolling and Automation,Northeastern University,Shenyang 110004,Liaoning,China;Jigang Group Co Ltd,Jinan 250101,Shandong,China

2.State Key Laboratory of Rolling and Automation,Northeastern University,Shenyang 110004,Liaoning,China

3.Jigang Group Co Ltd,Jinan 250101,Shandong,China

4.Jigang Group Co Ltd,Jinan 250101,Shandong,China

Keywords： steel plate

Static and dynamic continuous cooling transformations (CCT) of 610 MPa HSLA steel plate for 150 000 m~3 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 aeicular ferrite and bainite transformation area.

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Microstructure Transformation Behaviour of 610 MPa HSLA Steel Plate for 150000 m~3 Oil Storage Tank Construction

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