控轧控冷技术的发展和应用

15120061HEBEIMETALLURGYTotal1512006Number12006-01-0612231.1000832.3.050031TG335.11A1006-5008200601-0010-03DE#E$%&’E()*(D*&&$+,*)+%(%-,%().%$$ED.%$$+(/*(D,%().%$$ED,%%$+(/YULiang12LIUJun-hui2SONGHui-gai31.MaterialScienceandEngineeringInstituteBeijingUniversityofScienceandTechnologyBeijing1000832.No.2SteelRollingMillShijiazhuangIronandSteelCompanyShijiazhuangHebei0500313.No.4SteelRollingMillShijiazhuangIronandSteelCompanyShijiazhuangHebei050031*0123452Itisintroducedthatthehistoryandtheoryofcontrolledrollingandcontrolledcoolingtechnologyaswellasitscomparisonwiththenormaloneinimprovingsteelmicrostructureandgrainsize.Itmustbeanin-exorabletrendforproductionofhigh-performancesteels.6789:3;1controlledrollingandcontrolledcoolingausteniteferritemicrostructuregrainsize1202C-RC-C189020602060NbBritishIronandSteelresearchassocitionK20703γα01200611a1050～900#-$%950～8001&’(3)&1001*+950～900a&#-$%*)&,+)&Ⅱ14γ2a2&α2&-γ2*α2*-γ+αα2+γαα2+-2&2&-2&**-&-511151HEBEIYEJINβ1121623220gγ+α+A2F20g20MnSi35+Gr1516Mn16MnZC314Mn34i56σ7=450～610M89-40:ak=39～612Jσ7=411～470M89-40:ak=766～1380Jσ7=480～529M89-40:ak=796J4C;-40:ak9009MnN=σ7=382M89-40:ak=48Jσ7343M89-40:ak=926Jσ7392～411M89-40:ak=463～926J16Mn5σ7343M89σ7=382M89-40:ak=690J15Mn3σ7σ7392M89-40:ak246J20g9～15A316MnA3F1520MnSi23A3F65YGr15$%1521200611MgO4MgO1MgOFeOAl2O3FeOAl2O3FeOAl2O35.3443(～45(35(～37(-87(46)*+142MgO3≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈1271.M.1984.2.,.20027.73-77.3.M-1998.51