UT检测纵波实用AVG曲线的计算、制作和使用  

Calculation, Facture and Use of Practical AVG Curve in UT Inspection by Longitudinal Wave

作　　者：侯文科[1] 刘伟明 李兆华[3] 司春杰[3] 

机构地区：[1]山东大学材料科学与工程学院,山东济南250061 [2]烟台市产品质量监督检验所,山东烟台264001 [3]济南钢铁集团总公司,山东济南250101

出　　处：《山东冶金》2004年第4期49-51,共3页Shandong Metallurgy

摘　　要：应用脉冲反射法进行超声波探伤时 ,使用当量试块或通用AVG曲线对缺陷定性、定量分析均存在一定困难。为提高探伤效率 ,针对一定的使用条件 ,通过理论计算绘制出实用AVG曲线。使用该曲线能直观方便地得出缺陷当量 ,可方便地调节探伤灵敏度并可对缺陷进行定性。While using pulse reflection method to do ultrasonic inspection, it is difficult to analyze the defect quantificationally and qualitatively through equivalence sample and currency AVG curve. Aiming at the using conditions, a practical AVG curve was charted through theoretical calculation in order to improve flaw detection efficiency. The equivalence of defect can be easily evaluated by using practical AVG curve chart and this curve can be easily used to adjust the flaw detection sensitivity and analyze the defect quantificationally and qualitatively.

关 键 词：AVG曲线 脉冲反射法 超声波探伤 缺陷当量 灵敏度 

分 类 号：TG115.285[金属学及工艺—物理冶金]