ASME中有关于奥氏体焊缝A型脉冲反射式的超声波检测方法及验收吗

人在无锡

ASME Sec. VIII DIV1中，UW-53，App.12；ASME Sec. V Art. 4中，其范围均没有提到关于材料区别对待的问题，个人理解，是不是也涵盖了奥氏体焊缝UT检测了呢？

奥氏体不锈钢对接焊缝的A型脉冲反射式超声波检测方法不同于碳钢对接焊缝，难道asme他们不明白？还是有其他的奥巴马？

人在无锡

论坛这么多搞设计的，难道没有人知道吗？就知道rt，碳钢mt，不锈钢pt！一r打天下！

人在无锡

这么好的问题怎么没有人回答呢？

fredwang

不知道为什么一定要中文字数，下面的文字是楼主所要的答案吗？
T-451 COARSE GRAIN MATERIALS
Ultrasonic examinations of high alloy steels and high nickel alloy weld deposits and dissimilar metal welds between
carbon steels and high alloy steels and high nickel alloys are usually more difficult than ferritic weld examinations.
Difficulties with ultrasonic examinations can be caused by an inherent coarse-grained and/or adirectionally-oriented structure, which can cause marked
variations in attenuation, reflection, and refraction at grain boundaries and velocity changes within the grains. It
usually is necessary to modify and/or supplement the provisions of this Article in accordance with T-150(a) when examining such welds in these materials. Additional items,whichmay be necessary, are weldmockups with reference reflectors in the weld deposit and single or dual element
angle beam longitudinal wave transducers.

lastexile14

标准中似乎没有针对奥氏体钢的检测，至少是在UT中