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20062,,(,210039):SPCC,,:0.012%,,;0.015%,,,,:SPCC;;;:TG142.1:B:1008-0716(2006)02-0014-05InfluenceofAluminumContentonLow2CarbonDrawSteelPlatesTextureandPerformanceHuHengfa,PeiXinhua,MuHailing(TechnologyCenter,ShanghaiMeishanIron&SteelCo.,Ltd.,Nanjing210039,Jiangsu,China)Abstract:OnthebasisoftypicalSPCCsteelproducedbyMeishanCo.,BaosteelGroup,throughanalyzingtheplatestexture,metallurgicalstructure,grainorientation,hardeningindex,planeplasticstrainratioandcoldformingperformancewithdifferentaluminumcontents,influenceofaluminumonplatesprocessingpropertieshasbeendis2cussedfromtheangleoftheproductsmicrostructure.Experimentalresultsshowthatmaterialsyieldingphenome2nonwillbeeliminatedanditcanmeetrequirementsforperformanceasdrawsteelplatewhenitsaluminumcontentisabout0.012%.Whenthealuminumcontentreaches0.015%,thematerialhasnicemechanical,drawing,andform2ingpropertiesandtexture.Inactualproductionprocess,accordingtotheproductsservicerequirements,aluminumcontentcanbekeptinareasonablescope,whichwillbenefittheproductionandimprovementofproductscompre2hensiveperformance.Keywords:SPCC;aluminumcontent;texture;performance0,AlAlN,{111},[1-3],,{001}{111}rr,,,19611983025-86362167,,,[4,5],0.020%,,,,:,,41SPCC,,,,1SPCCSPCC,0.04%0.07%,,,,,{111},r,NC,CN,111,{111},r,NMn,,{111}[6],Mn0.20%,{111},r,,,,,,,,,CN,AlAl0.030%0.060%0.003%0.040%26SPCC,2.3mm,0.8mm,11SPCCTable1Chemicalcompositionoflow-carbondrawsteelplatesSPCC%CSiMnPSAlAlSM10.0520.0110.2160.0130.0170.0030.003M20.0460.0180.1870.0140.0190.0080.008M30.0570.0180.2090.0180.0130.0120.012M40.0430.0130.1890.0190.0180.0150.014M50.0640.0100.1780.0090.0120.0220.016M60.0420.0140.1890.0180.0180.0370.0182.1SPCC,AlN,AlN,AlN,AlN,SPCC,1250,860,600,AlN,,,2.2,,,SPCC,AlN,{111},{111}2.3rrn,,35120062,2n10%18%,r15%,Rp0.22Table2Mechanicalpropertiesoflow-carbondrawsteelplatesnrs/MPab/MParM1-Z0.2021.0802813720.760M1-450.1940.8652993830.780M1-H0.1941.6323193760.8500.4881.1090.1969.5M2-Z0.2031.1202883650.790M2-450.2010.9303033680.830M2-H0.2081.8902953650.8100.5751.2180.2049.6M3-Z0.1881.6782253460.650M3-450.1941.2882153550.606M3-H0.1932.0732093270.6390.5651.6650.1929.4M4-Z0.2141.8011983500.566M4-450.2081.4612043490.585M4-H0.1922.0122163420.6320.5131.7450.20310.1M5-Z0.2001.5932083500.594M5-450.2101.5682083540.588M5-H0.1901.9522073330.6220.5761.7180.1959.5M6-Z0.1991.9862063340.617M6-450.1921.4422083430.610M6-H0.1932.1082023380.6000.6031.7440.1959.72.4,Axiophot2,11M1M4Fig.1InclusionsinsamplesM1M42.51/4,PHILIPS/XpertMPDPROX2Schulz233.1,SPCC,0.008%,,,0.012%,,CN,Al(CN),,,r(3),r(4),0.015%r612ODFFig.2Textureofsampleswithdifferentaluminumcontent(=constant,ODFsection)3SPCCrAlFig.3RelationshipbetweenaveragerandAlcontentinsteelplateSPCC,rn0.2(5)nr,r,4SPCCrAlFig.4RelationshipbetweenaveragerandAlcontentinsteelplateSPCC3.2,Al,,8.5Al,71200625SPCCnAlFig.5RelationshipbetweennandAlcontentinsteelplateSPCC,,7,AlN,,,,:0.015%,,AlN,,0.045%,,()3.36AlSPCC5,ODF,,Al{111}110Al,Al,AlN,,AlNAlr,SPCCrAl,Al0.015%rr4(1)SPCCr,rn0.20.015%r(2),Al,Al,,,,(3),,(4)SPCC,0.012%,,0.015%,,,(5),Al,Al,,,![1],,.[J].,1998,(7):37-40.[2],.08Al[J].,1995,(1):54-58.[3],,.08AL[J].,1996,(2):96-100.[4],,.[J].,2001,(2):1-7.[5],.[J].,2004,(3):4-7.[6].(111)[J].,1990,(2):1-7.(:2006-01-24)(:2006-02-06)81