摘要:
在临氢及湿硫化氢环境下运行的压力容器，可能会产生氢鼓泡(HB)和氢致开裂(HIC)，初期HB有时鼓包不明显，易被漏检。利用超声相控阵，可以检测大量氢致开裂。给出了相控阵检测具体参数，包括仪器、探头、试块、灵敏度、扫描深度、显示延迟、水平图像中心、发射脉冲宽度、重复频率、发射电压、扫描类型、扫描波形、焦点深度、角度、孔径等具体仪器设置。
Abstract:
HIC or HB appears in some pressure vessels in hydrogen or wet hydrogen sulfide environment. HIC or HB is not easy to be found, but HIC or HB can be found by ultrasonic phased array. Specific system settings such as system, probe, test block, sensitivity, scan depth, display delay, horizontal image center, transmit pulse width, PRF, transmit voltage, scan type, scan waveform, focus depth, angle and aperture has be introduced.
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