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《Iron & Steel》 2006-08
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Effect of Production Processes on Low Temperature Toughness of 420 MPa High Strength Shipbuilding Steel

WANG Hong~1,2,LIU Xiao-lin~1,2, CAI Qing-wu~1(1.Rolling Center,University of Science and Technology Beijing,Beijing 100083,China;2.Technology Center,Xinyu Iron and Steel Co.,Xinyu 338001,Jiangxi,China)  
The strong instability of-40℃ longitudinal impact strength of E42 shipbuilding steel observed in trial production was studied by using different processes.The results show that for two-phase rolling,the structure with mixed crystals is formed in product due to rolling in partially recrystallized zone caused by the effect of rolling piece thickness increment on deformation temperature of non-recrystallized zone,and as the result,the low temperature impact strength of product is reduced.On the other hand,the granular bainite is formed during cooling at improper rate after rolling,making low temperature impact strength lower,too.
【CateGory Index】: U668.2
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【References】
Chinese Journal Full-text Database 1 Hits
1 YUAN Shao-qiang1,LIANG Guo-li1,LIU Yi2(1.Department of Scientific Research and Production Tangshan College,Tangshan 063000,China;2.Technical Center of Tangshan Iron and Steel Co.,Ltd,Tangshan 063000,China);Brief Account of Production Technology for High Strength Shipbuilding Steel Plate[J];Journal of Tangshan College;2007-06
【Citations】
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1 Hu Shu′eFu Chenguang and Yu Wei(Technical Centre of Jinan Iron and Steel Group Corp)(University of Science and Technology Beijing);Effect of Al、V on Austenitic Recrystallization Law[J];Wide and Heavy Plate;2001-02
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【Co-citations】
Chinese Journal Full-text Database 10 Hits
1 Xing Xiangqin~1 Wang Jiangang~2 Song Zhenguan~2(1.Jinan Iron and Steel Co.,Ltd.2.Northeast University);Study on Austenite Dynamic Recrystallization Behavior during Deformation inside EH36 Ship Plate Steel[J];Angang Technology;2006-03
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【Co-references】
Chinese Journal Full-text Database 5 Hits
1 XU Hai-ping,ZHANG Yu-zhu,ZHANG Zhi-jie(Handan Iron and Steel Company,Handan,Hebei,056015);DESIGN OF CHEMICAL COMPOSITION FOR HIGH-STRENGTH SHIP-PLATE STEEL OF A36 AND ANALYSIS FOR ITS CONTROLLED-ROLLING PROCESS[J];Hebei Metallurgy;2006-06
2 Ma Yunting (Quality Management Department of Wuyang Iron and Steel Co. Ltd) Ye Jianjun (Plate-rolling Plant of Wuyang Iron and Steel Co.Ltd);Application of Nb in Low Temperature High Strength Hull Structural Steel EH36[J];Wide and Heavy Plate;2002-03
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1 Li Wenqing Zhang Xiaohong Gao Ning Wang Yiuaen (University of Science and Technology Beijing) (Taiyuan Iron and Steel Company);The Effect of Al, Ti, V and Nb on the Grain Growth Behavior of Austenite in Medium Carbon Steels[J];Journal of University of Science and Technology Beijing;1990-05
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