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《Metal Hotworking Technology》 2007-10
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Effects of Cooling Rate on Microstructure and Mechanical Properties of C-Si-Mn Dual-phase Steel As-hot-rolled

JIA Zhi-wei1,SUN Bin-bin1,ZHANG Hong-mei1,2,LIU Zhen-yu2,WANG Guo-dong2 (1.Coll.of Mater.Sci.and Eng.,Liaoning University of Science and Technology,Anshan 114044,China; 2.The State Key Laboratory of Rolling and Automatic,Northeastern University,Shenyang 110006,China)  
The effects of cooling rate on microstructure and mechanical properties of C-Si-Mn dual-phase steel as-hot-rolled were studied by hot-rolling experiment.It is found that cooling rate has an great effect on the microstructure and mechanical properties of as-hot rolled dual-phase steel.There are three typical microstructure of as-hot rolled dual-phase steel and through different strengthening mechanism to obtain high yield strength and tensile strength.The yield strength and tensile strength can be obtained by controlling the cooling rate,and the result is better.
【CateGory Index】: TG142.2
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