高强铝合金材料的超声检测

(,100095):,,,:;;;:TG115.28+5:A:100026656(2001)1120479203ULTRASONICTESTINGOFALUMINIUM2LITHIUMALLOYFORGINGSZHANGJian2he(BeijingInstituteofAeronauticalMaterials,Beijing100095,China)Abstract:Aluminium2lithiumalloyislowerindensityandhigherinstrength.Itisanewkindofweldablestructuralmaterialforspacenavigation.Forgingsweretestedandthedifferenceinultrasonicpropertybetweentheadvancedalloyandconventionalaluminiumalloywasfound.Thedissectionofthesamplesprovedthatthedefectsinthealuminium2lithi2umalloywerelinearorstripinclusions.Keywords:Ultrasonictesting;Highstrengthaluminiumalloy;Inclusion;Forging,,,10%10%,,10%20%[1],,,()[2]1Al25Mg22Li20.1Zr,,(2.69g/cm3)20%[3]1.1:2000209215,,,,,,,,1,,,,2,,0.8mm,19742311200111NDTVol.23No.11Nov.2001©1995-2004TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.21.2mm,,,,290mm125mm70mm(2)289mm124mm68mm(1)1.2,LC9,,1.2.1Panametrics5605A,5800,LeCroy9310AL11mmsm/s170.022.1222.046340LC921.2mm270mm75.223.8723.826307,,1.2.2,,70%,93%,,LC9,,1.2.3,,,,,,,,,(Zr),,1.31.3.1USIP211;V109(),5MHz,12.7mm;,LC9;,30100m,2.55MHz1.3.2,LC921.2mm270mm,,70mm80%,34dB,1.3.3,A2,22/mm/mmF135.521.2mm-2dBF851.721.2mm-24dBF228.211.2mmF933.121.2mm-22dBF340.221.2mm-13dBF1036.991.2mm-12dBF436.251.2mm-22dBF1140.751.2mm-12dBF537.611.2mm-20dBF1237.611.2mm-24dBF637.901.2mm-7dBF1328.211.2mm-20dBF732.391.2mm-24dB22.1,,A2,,,,,084:©1995-2004TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.34A2F1F2,,120,5s;20,5min3F14F234F1F270mm,5,125mm,2.5,20%,,6,LC921.2mm270mm80%2.25F16,1.2mm,1.2mmF1F2,,,,,,,,,,,,7A2F1F2(a)F1(b)F27A2F1F2100(484)184:©1995-2004TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.44545t/sx/cmt/sx/cm135.254.89-35.504.8720.507.46-0.257.52328.509.6139.7510.444-23.505.76-23.505.7650.507.540.507.54632.509.9131.008.80724.255.703.595.4483.758.054.007.79930.259.7432.259.885()AEx/cmy/cmx/cmy/cm14.000.00611.000.0027.000.0074.000.00311.000.0088.000.0044.000.00911.000.0056.000.003(5),0194cm,14%(4),40.34cm,4.7%;50.44cm,6.3%,,,,,(1480m/s[2]),,,,,,:[1].Effectonflawlocationbythewaveshapeofa2cousticemissionpropogatinginalimitedmedium[A].11thWorldConferenceonNondestructiveTesting(Vol.1)[C].LasWegasUSA:1985.62-69.[2],.[J].,1999,21(4):145-148.[3]Oh2YangKwon,Yong2ChanJoo.SourcelocationinplatebyusingwavelettransformofAEsignals[A].14thInter2nationalAESymposium&5thAEWorldMeeting(Vol.4)[C],HawaiiUSA:1998.9-14.[4].[M].:,1998.(481)7,,,F1F2,,,,,,,,,,,,[1],,,,,3(1),,,(2),,,,(3),1.2mm,,:[1],.Al2Li[J].,1998,17(2):14.[2],,.8090[J].,1992,15(5):7.[3],,,.Al2Li[J].,1996,32(9):993.484:©1995-2004TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.