摘要
超声波在P91/P92与碳钢中传播声速不一样,造成利用碳钢试块校准的超声波仪器在P91/P92管道焊接接头进行超声波检测时存在水平及垂直定位不准确的现象,通过理论分析及试验对比可以对P91/P92管道焊接接头缺陷进行精确定位。
Because of the velocity of ultrasonic wave in P91/P92 and carbon steel is different,the position of horizontal and vertical is inaccurate.Through theoretical analysis and test,the defects in P91/P92 pipe can be accurately positioned.
作者
吕磊
刘扬
LV Lei;LIU Yang(Inner Mongolia Electric Power Research Institute,Hohhot 010020,China;Inner Mongolia Datang International Xilinhot Power Generation Co.,Ltd.,Xilinhot 026000,China)
出处
《内燃机与配件》
2019年第18期113-115,共3页
Internal Combustion Engine & Parts
关键词
P91/P92
超声波探伤
无损检测
P91/P92
ultrasonic flaw detection
nondestructive examination
