非调质的发展现状

15120061HEBEIMETALLURGYTotal1512006Number12006-01-0612121.1000832.050031-TG142.33B1006-5008200601-0006-04DE#E$%&’E()*(D&+E,E()%-(%(-./E(01ED*(D(%(-)E’&E+ED’20+%*$$%3,)EE$LIURui-ning12WANGFu-ming1LIQiang21.MetallurgicalandEcologicalEngineeringInstituteBeijingUniversityofScienceandTechnologyBei-jing1000832.TechniqueCenterShijiazhuangIronandSteelCompanyShijiazhuangHebei050031*4567896Thedevelopmentandapplicationofnon-quenchedandnon-temperedmicro-alloysteelareintro-duced.ItisfullyaccordantwiththenationalironandsteeldevelopmentpolicyandShiSteelˊsownstrategy.:;=7?5micro-alloynon-quenchedandnon-temperedsteeldevelopmentapplication1260tΦ14～180mm4540Cr6K+49MnLS338K18K12LNbTi2.12060701972THMSSEN49MnLS3-850MNaCO4540CrMn620061!#$20903!%&%’(850～1100)*%+,-.)./,+,-.800～1000)*%22.22003+045-40)&!36)&2!6200-31--601-0.322-1.0)&-0.12!-0.024/31250450.1µ5460-)&+)&+!7/37)&+)&+0.06160-60-2ε2--12)&2!8!9≥686)*%!:≥490)*%5≥171#≥451a;≥78=52319882?%@%’’%#+ABB#*.C.D’3E?A---*7151HEBEIYEJINBMF-BF-M112.3*+N*+N*N120×10-6*+N0.15,0.08,～0.13,1200-γ→α0.3,～0.4,1325～1360-1100-1300-50,50.01,～0.04,6./N0.01,7./N2.4-35M0*138M0*./42*140M0*15540M0B4540+2+36102+314119782035M0*40M0BE4610048M0*40+215,82006111!50#$%Φ60&70’6Φ4248#$%125×12512#$2%(’Φ80～10035#$%)Φ48’43&%’1Φ55*+40#$%Φ2528*+45#$%Φ30362.52.5.1→,+%-→→→2249#$%’330#$2’.%35#$%*+40#$%12#$2%(35#$2’.%’/452.5.2199631/(!01571219959--(’970/(!0157121995209030149#$%’320150131.2.1996219-24.2..2.199359-14.3.#.2000.4.2.199333111.5.#.1997.6.2.1994193-98.7.2.2002149-54.9