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Effects of Controlled Rolling and Controlled Cooling on Strength and Toughness of X80M Steel
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Xiao-ming Yuan1, Li-ping Wu2, Shao-bing Wang1, Hai-long Gu3
Rare Earth Steel | 2021, 47(2) : 6 - 11
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Rare Earth Steel | 2021, 47(2): 6-11
• Expert Forum •
Effects of Controlled Rolling and Controlled Cooling on Strength and Toughness of X80M Steel
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Xiao-ming Yuan1, Li-ping Wu2, Shao-bing Wang1, Hai-long Gu3
Affiliations
  • 1.Technical Center of Inner Mongolia Baotou Steel Union Co., Ltd., Baotou 014010, Inner Mongolia Autonomous Region, China
  • 2.Inner Mongolia Baotou Steel Metal Manufacturing Co., Ltd., Baotou 014010, Inner Mongolia Autonomous Region, China
  • 3.CNPC Bohai Equipment North China Petroleum Steel Pipe Co., Ltd., Cangzhou 062658, Hebei, China
Published: 2021-04-25 doi: 10.13647/j.cnki.btgkj.2021.02.002
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The high-temperature deformation behavior and continuous cooling phase transformation law for austenite of X80M steel are studied with thermal simulation compression and thermal expansion tests as well as the parameters of controlled rolling and controlled cooling are formulated and the industrial production is carried out. The study results showed that the deformation in final pass of controlled rolling and controlled cooling process was greater than 25% and it could be with perfect recrystallization, grain size was significantly refined and acicular ferrite + bainite with suitable proportion was obtained when the cooling rate was 20~25 ℃/s, the yield ratio of steel strip was about 0.86, impact energy at-20 ℃ was not lower than 370 J, shearing area of drop-weight test at-15 ℃ was not smaller than 95% as well as ductile-brittle transition temperature of Charpy V test was-45 ℃ to ensure the welded pipe to be with low bauschinger strength variation and ductile-brittle transition temperature and excellent resistance to buckling instability.

X80M steel  /  controlled rolling and controlled cooling  /  strength and toughness  /  bauschinger effect  /  microstructure
袁晓鸣, 武利平, 王少炳, 谷海龙. 控轧控冷对X80M钢强韧性的作用. 包钢科技, 2021 , 47 (2) : 6 -11 . DOI: 10.13647/j.cnki.btgkj.2021.02.002
Xiao-ming Yuan, Li-ping Wu, Shao-bing Wang, Hai-long Gu. Effects of Controlled Rolling and Controlled Cooling on Strength and Toughness of X80M Steel[J]. Science & Technology of Baotou Steel, 2021 , 47 (2) : 6 -11 . DOI: 10.13647/j.cnki.btgkj.2021.02.002
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Year 2021 volume 47 Issue 2
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Article Info
doi: 10.13647/j.cnki.btgkj.2021.02.002
  • Receive Date：2020-01-12
  • Online Date：2026-10-20
  • Published：2021-04-25
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History
  • Received：2020-01-12
Funding
Affiliations
    1.Technical Center of Inner Mongolia Baotou Steel Union Co., Ltd., Baotou 014010, Inner Mongolia Autonomous Region, China
    2.Inner Mongolia Baotou Steel Metal Manufacturing Co., Ltd., Baotou 014010, Inner Mongolia Autonomous Region, China
    3.CNPC Bohai Equipment North China Petroleum Steel Pipe Co., Ltd., Cangzhou 062658, Hebei, China
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Citations
表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
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Genus		 种数
Number of
species		 占总种数比例
Percentage of total
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鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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