奥氏体不锈钢与普通碳钢对接环焊缝的超声波探伤

,(,430074)(,430012)ULTRASONICINSPECTIONOFTHEBUTT2WELDEDBOXINGSEAMBETWEENAUSTENITICSTAINLESSSTEELANDQ235STEELWANSheng2yun,XIONGLa2sheng(HuazhongUniversityofScienceandTechnology,Wuhan430074,China)SHISheng2ping(WuhanJianganRollingStocksWorks,Wuhan430012,China):TG115.28:B:100026656(2003)05202742021Cr18Ni9Ti,Q235(1)1,,,11.1,,2mm,,,,;,:20022052162,,21Cr18Ni9Ti,1.2CTS2228mm12mm,f=2.5MHzSAN20K21.34mm4mm,3,,,,22.12CTS226f=10MHz,6mm,47225520035NDTVol.25No.5May2003©1995-2003TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.342mm2mm52mm2mm615mm2mm780.2mm10mm9110mm10113mm112(CPbNb2O4)10,5mm2.2,2mm,,,,10dB,482.376,27,107,,,,,912,,,T=10mm,2=10,2=11.9,122Sl=10.8mm,=0.59mm,N=15.3mm,b=25mm,0=6193,,,572:©1995-2003TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.