精川小课堂 | 输氢管道氢脆研究中的10个问题

学习加拿大卡尔加里大学、加拿大皇家科学院院士程玉峰教授《进一步推进输氢管道氢脆研究探讨》报告受益匪浅，报告中提及的10个问题，梳理（英译中）如下：

Q1. Does enough H atoms generate in gaseous hydrogen pipeline to cause crack?

含氢/氢气管线中能否产生足够的H原子从而导致开裂？

Q2. Is the cathodic H-charging representative of the gasous H-charging?

阴极电化学充氢是否可以代表气相充氢？

Q3. Why are H atoms not charged (or at an appreciable amount) in the steels in gasous environments?

在气相环境下，钢中为何没有充氢（或氢含量不高）？

Q4. What is a reliable gaseous H-charging method with a convincing reproducibility?

哪一种方法是可靠、重现性好的气相充氢方法？

Q5. While the controversial results on stress strain behavior are obvious, which is correct and how does the H2 gas environment affect the deformation behavior of steels?

已发表研究文献中应力应变行为有着明显的相反结果，哪一方是正确的？氢气环境是如何影响钢材的（塑性）变形行为？

Q6. While the SSRT results are obviously controversial, does the cyclic loading affect H atom entry and thus the fatigue behavior of steels? How is the H-fatigue interaction?

文献中一些SSRT实验结果明显是相反的，循环载荷是否影响了氢原子的进入从而对钢材的疲劳行为产生影响？

Q7. How is the amount of accumulated H atoms at pipeline defects quantified？More important, how are the modeling results verified one pipes?

如何量化管道缺陷处积累的氢原子量？更重要的是，如何在一个管道中验证建模的结果？

Q8. How is th pipeline surface condition reproduced in the lab to obtain realistic H-charging results under controllable test conditions?

如何在实验室中再现管道的表面状态，从而在可控试验条件下获得真实的充氢实验结果？

Q9. How does the cyclic loading affect the H atom entry and distribution in steels?

循环载荷如何影响氢原子进入钢中以及在钢中的扩散？

Q10. How does the cyclic loading reduce the threshold H concentration to initiate cracks?

循环载荷如何降低氢浓度阀值从而诱发裂纹？