用纵波直探头测量新型耐热钢材料横波声速的方法

详细信息

Measurement of Shear-Wave Sound Velocity Using Normal Probe for the New Heat-Resistant Steel

摘要: 介绍了一种利用纵波直探头现场测定新型耐热钢材料(如P91钢)横波声速的新方法。利用纵波直探头在工件材料中产生的变型横波，通过探讨该变型横波的产生原因及传播路径，推导出该工件材料的横波声速计算公式。检测过程中，通过修正斜探头的折射角度和AVG曲线，从而提高对工件中缺陷的定位精度，以避免生产过程中的漏检和误判。
- 超声波探伤 /
- 横波声速 /
- 声特性 /
- 耐热钢
Abstract: This paper introduces a new method for field determination of a new type of heat-resistant steel materials (such as P91 steel) shear wave sound velocity using normal probes. Using the variant transverse wave from the normal probe in the workpiece, exploring the causes and the propagation path of the variant shear wave , deduced the transverse wave sound velocity calculation formula for the material. When testing, correct the angle of refraction and AVG curve.So that increasing the positioning accuracy of the defects ,and avoiding the undetected and misjudgment.
- Ultrasonic testing /
- Shear wave velocity /
- Acoustic characteristics /
- Heat-resistant steel

[1]	郑晖，林树青.超声检测(第二版)［M］.北京：中国劳动社会保障出版社，2008.
[2]	JB/T 4730-2005承压设备无损检测［S］.