1、Designation:E270014Standard Practice forContact Ultrasonic Testing of Welds Using Phased Arrays1This standard is issued under the fixed designation E2700;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revision,the year of last revision.A num
2、ber in parentheses indicates the year of last reapproval.Asuperscript epsilon()indicates an editorial change since the last revision or reapproval.1.Scope*1.1 This practice describes ultrasonic techniques for in-specting welds using phased array ultrasonic methods(seeNote 1).1.2 This practice uses a
3、ngle beams,either in S-scan orE-scan modes,primarily for butt welds and Tee welds.Alter-native welding techniques,such as solid state bonding(forexample,friction stir welding)and fusion welding(forexample,electron beam welding)can be inspected using thispractice provided adequate coverage and techni
4、ques are docu-mented and approved.Practices for specific geometries such asspot welds are not included.The practice is intended to be usedon thicknesses of 9 to 200 mm(0.375 to 8 in.).Greater andlesser thicknesses may be tested using this standard practice ifthe technique can be demonstrated to prov
5、ide adequate detec-tion on mockups of the same wall thickness and geometry.1.3 The values stated in SI units are to be regarded as thestandard.The values given in parentheses are for informationonly.1.4 The values stated in inch-pound units are to be regardedas standard.The values given in parenthes
6、es are mathematicalconversions to SI units that are provided for information onlyand are not considered standard.NOTE1This practice is based on experience with ferrous andaluminum alloys.Other metallic materials can be examined using thispractice provided reference standards can be developed that de
7、monstratethat the particular material and weld can be successfully penetrated by anultrasonic beam.NOTE2For additional pertinent information,see Practices E2491,E317,and E587.2.Referenced Documents2.1 ASTM Standards:2E164 Practice for Contact Ultrasonic Testing of WeldmentsE317 Practice for Evaluati
8、ng Performance Characteristics ofUltrasonic Pulse-Echo Testing Instruments and Systemswithout the Use of Electronic Measurement InstrumentsE543 Specification for Agencies Performing NondestructiveTestingE587 Practice for Ultrasonic Angle-Beam Contact TestingE1316 Terminology for Nondestructive Exami
9、nationsE2192 Guide for Planar Flaw Height Sizing by UltrasonicsE2491 Guide for Evaluating Performance Characteristics ofPhased-Array Ultrasonic Testing Instruments and Systems2.2 ASME Standard:3ASME B and PV Code Section V,Article 42.3 ISO Standards:4ISO 2400 Reference Block for the Calibration of E
10、quipmentfor Ultrasonic ExaminationISO 9712 Nondestructive TestingQualification and Certi-fication of NDT Personnel2.4 ASNT Documents:5SNT-TC-1A Recommended Practice for Personnel Qualifi-cation and Certification in Nondestructive TestingANSI/ASNT CP-189 Standard for Qualification and Certifi-cation
11、of NDT Personnel2.5 AIA Standard:6NAS-410 Certification and Qualification of NondestructiveTesting Personnel3.Terminology3.1 DefinitionsFor definitions of terms used in thispractice,see Terminology E1316.4.Summary of Practice4.1 Phased arrays are used for weld inspections for numer-ous applications.
12、Industry specific requirements have beendeveloped to control the use of this technology for thoseapplications.A general standard practice document is required1This practice is under the jurisdiction of ASTM Committee E07 on Nonde-structive Testing and is the direct responsibility of Subcommittee E07
13、.06 onUltrasonic Method.Current edition approved Oct.1,2014.Published October 2014.Originallyapproved in 2009.Last previous edition approved as E270009.DOI:10.1520/E2700-14.2For referenced ASTM standards,visit the ASTM website,www.astm.org,orcontact ASTM Customer Service at serviceastm.org.For Annua
14、l Book of ASTMStandards volume information,refer to the standards Document Summary page onthe ASTM website.3Available from American Society of Mechanical Engineers(ASME),ASMEInternational Headquarters,Three Park Ave.,New York,NY 10016-5990,http:/www.asme.org.4Available from American National Standar
15、ds Institute(ANSI),25 W.43rd St.,4th Floor,New York,NY 10036,http:/www.ansi.org.5Available fromAmerican Society for Nondestructive Testing(ASNT),P.O.Box28518,1711 Arlingate Ln.,Columbus,OH 43228-0518,http:/www.asnt.org.6Available from Aerospace Industries Association of America,Inc.(AIA),1000Wilson
16、Blvd.,Suite 1700,Arlington,VA22209-3928,http:/www.aia-aerospace.org.*A Summary of Changes section appears at the end of this standardCopyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 to define the requirements for wider use of the technology.Several manufacturers have developed portable,user-friendlyinstruments.Codes and code cases have been developed,or arebeing developed,to cover phased array weld inspection re-quirements by organizat
