对锆合金管材和板材进行不同氢含量的气态渗氢处理,分别采用称重法、化验法及金相法对氢含量进行了表征,并对其相关性展开了研究。结果表明:当氢含量较低时,称重法检测的氢含量波动较大,而化验法检测的氢含量波动相对较小,化验法检测的氢含量低于目标渗氢量,而称重法检测的氢含量接近于目标渗氢量;当氢含量较高时,称重法检测氢含量的波动仍然较大,而化验法检测氢含量的波动范围则随着目标渗氢量的增大而逐渐增大,并且化验法的检测结果高于目标渗氢量,而称重法的检测结果接近于目标渗氢量;当氢含量较低时,金相法估算的氢含量与目标渗氢量有一定的正相关关系,而当氢含量较高时,由于氢化物变得比较细小、密集,使得金相法估算出的氢含量存在较大的偏差。

Zirconium alloy tubes and plates were gas hydrogenated with different hydrogen contents. The hydrogen content was characterized by weighing method, chemical test method and metallographic method, and the correlation was studied. The results show that when the hydrogen content was low, the hydrogen content measured by the weighing method fluctuated greatly, while the hydrogen content measured by the chemical method fluctuated relatively small. The hydrogen content measured by the chemical method was lower than the target hydrogen permeation amount, while the hydrogen content measured by the weighing method was close to the target hydrogen permeation amount. When the hydrogen content was high, the fluctuation of the hydrogen content measured by the weighing method was still large, while the fluctuation range of the hydrogen content measured by the test method gradually increased with the increase of the target hydrogen content, and the measurement result of the test method was higher than the target hydrogen content, while the measurement result of the weighing method was close to the target hydrogen content. When the hydrogen content was low, the hydrogen content estimated by the metallographic method had a certain positive correlation with the target hydrogen content. When the hydrogen content was high, the hydride became smaller and denser, which made the hydrogen content estimated by the metallographic method had a large deviation.