Mitigating hydrogen embrittlement in high-strength steels

减轻高强度钢的氢脆

• 批准号: LP180100431
• 负责人: Prof Julie Cairney
• 金额: $ 22.81万
• 依托单位: The University of Sydney
• 依托单位国家: 澳大利亚
• 项目类别: Linkage Projects
• 财政年份: 2019
• 资助国家: 澳大利亚
• 起止时间: 2019-06-01 至 2024-12-31
• 项目状态: 已结题
• 来源: https://dataportal.arc.gov.au/RGS/Web/Grants/LP180100431
• 关键词: Mitigating; hydrogen; embrittlement; strength; steels

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.

氢在许多合金中造成严重破坏，导致脆化，可能导致灾难性的故障。对于任何结构暴露在氢中的行业来说，这都是一个非常严重的问题，并且是潜在的氢经济中氢的生产、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的困难的限制。在这个项目中，我们将结合氚和低温原子探针显微镜，获得显示钢中氢原子位置的准确3D地图。通过这种方式，我们将阐明提出的氢捕获解决方案如何减少氢脆，从而有助于制定耐氢钢的设计标准。