Mitigating hydrogen embrittlement in high-strength steels

氢在许多合金中造成严重破坏，导致脆性，从而导致灾难性的失效。对于任何结构暴露于氢气的行业来说，这都是一个非常严重的问题，也是潜在氢经济中氢气生产、运输、储存和使用的限制因素。然而，对氢在合金中的行为的理解受到观察它的困难的限制。在这个项目中，我们将通过结合氘化和低温原子探针显微镜获得精确的3D地图，显示氢原子在钢中的位置。通过这种方式，我们将阐明一个建议的解决方案，氢捕获，如何减少氢脆，有助于抗氢钢的设计标准。

Hydrogen wreaks havoc in many alloys, leading to embrittlement that can cause catastrophic failure. This is a very serious issue for any industry in which structures are exposed to hydrogen and is a limiting factor for the production, transport, storage and use of hydrogen in a potential hydrogen economy. However, understanding the behaviour of hydrogen in alloys is restricted by the difficulty of observing it. In this project we will obtain accurate 3D maps showing the position of hydrogen atoms in steel by combining deuteration with cryogenic atom probe microscopy. In this way we will will elucidate how a proposed solution, hydrogen trapping, reduces hydrogen embrittlement, contributing to design criteria for hydrogen-resistant steels.