焊缝超声NDT三法比照评析  

Comparison and Analysis of Three Ultrasonic Methods in Weld Inspection

作　　者：李衍 LI Yan(NDT Subcommittee of Wuxi Pressure Equipment Society,Wuxi 214026,China)

机构地区：[1]无锡市承压设备学会NDT专委会

出　　处：《无损探伤》2020年第1期1-6,共6页Nondestructive Testing Technology

摘　　要：在内植典型缺陷的焊接试样上,比较了用超声衍射时差法(TOFD)和相控阵(PA)法与传统法进行检测的结果。评析了计算机成像(CI)法与传统法的缺陷检测能力、缺陷信号显示、检测成本及时间效率。指出CI法最终取代传统法的必然性与注意点。The results acquired using the three ultrasonic NDT methods are compared on the welded specimens with planted typical defects.Application of CI(computerized imaging)techniques and conventional UT is evaluated in terms of defect detection capability,defect signal response,inspection costs and time efficiency,thereby indicating the inevitability and key points for advanced CI methods replacing traditional method.

关 键 词：超声检测 传统法 计算机成像法 衍射时差法 相控阵法 

分 类 号：TG115.28[金属学及工艺—物理冶金]