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Study on Structure Properties of Controlled Rolling and Controlled Cooling for Low Alloy Structural Steel
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Yi-nan Yue1, 2, Rui-hua Guo1, Xiong Yang2
Rare Earth Steel | 2018, 44(6) : 42 - 45
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Rare Earth Steel | 2018, 44(6): 42-45
• Quality of Variety and Experiment and Research •
Study on Structure Properties of Controlled Rolling and Controlled Cooling for Low Alloy Structural Steel
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Yi-nan Yue1, 2, Rui-hua Guo1, Xiong Yang2
Affiliations
  • 1.School of Material and Metallurgy, Inner Mongolia University of Science and Technology, Baotou 014010, Inner Mongolia Autonomous Region, China
  • 2.Technical Center of Inner Mongolia Baotou Steel Union Co., Ltd., Baotou 014010, Inner Mongolia Autonomous Region, China
Published: 2018-12-25 doi: 10.13647/j.cnki.btgkj.2018.06.012
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In order to understand the change rules for microstructure and properties of low alloy structural steel with controlled rolling and controlled cooling process, the Mn-B-Cr-Nb-Ti series of Q690 low alloy high strength structural steel was taken as the object of study, the change rules for structure properties with different processes are analyzed through changing the controlled rolling and controlled cooling process. The test results showed that the tensile strength, yield strength and yield ratio of the test steel were all decreased slowly, the elongation was increased and the impact energy at-20 ℃ was decreased periodically with the increase of finish cooling temperature. The microstructure was changed as the rules of ferrite, granular bainite and lath bainite as well as the effects on the properties of the material are different with the decrease of finish cooling temperature.

low alloy structural steel  /  controlled rolling and controlled cooling  /  mechanical properties  /  microstructure
岳祎楠, 郭瑞华, 杨雄. 低合金结构钢控轧控冷组织性能研究. 包钢科技, 2018 , 44 (6) : 42 -45 . DOI: 10.13647/j.cnki.btgkj.2018.06.012
Yi-nan Yue, Rui-hua Guo, Xiong Yang. Study on Structure Properties of Controlled Rolling and Controlled Cooling for Low Alloy Structural Steel[J]. Science & Technology of Baotou Steel, 2018 , 44 (6) : 42 -45 . DOI: 10.13647/j.cnki.btgkj.2018.06.012
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Year 2018 volume 44 Issue 6
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Article Info
doi: 10.13647/j.cnki.btgkj.2018.06.012
  • Receive Date：2018-03-01
  • Online Date：2026-10-20
  • Published：2018-12-25
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  • Received：2018-03-01
Affiliations
    1.School of Material and Metallurgy, Inner Mongolia University of Science and Technology, Baotou 014010, Inner Mongolia Autonomous Region, China
    2.Technical Center of Inner Mongolia Baotou Steel Union Co., Ltd., Baotou 014010, Inner Mongolia Autonomous Region, China
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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
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
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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