Frontiers of corrosion science

应力腐蚀开裂（SCC）是在拉应力和反应环境的同时影响下裂纹的缓慢增长。通常这个术语适用于金属，尽管玻璃和陶瓷也可以显示相关的现象。SCC在广泛的行业中具有巨大的工程重要性。在金属中，这是这个建议的主题，一直有激烈的争论，在这种裂缝的尖端发生的纳米级事件。最近，新的工具和理论已经发展出来，可以期望观察和模拟这些事件。然而，它们主要用于研究复杂的工程合金在困难的环境中，如高温水，或在某些原子建模方案的情况下，材料更像脆性固体比金属。在这个项目中，我们将回到容易研究的模型合金系统，并应用一系列现代方法。这将极大地推进这一主题的基础。

Stress corrosion cracking (SCC) is the slow growth of cracks under the simultaneous influence of a tensile stress and a reactive environment. Usually the term is applied to metals, although glasses and ceramics can also show related phenomena. SCC has enormous engineering importance in a wide range of industries. In metals, which are the subject of this proposal, there have always been fierce arguments as to the nanoscale events that occur at the tips of such cracks. Recently, new tools and theories have evolved that can aspire to observe and model such events. However they have been used mainly to study complex engineering alloys in difficult environments such as high-temperature water, or in the case of certain atomistic modelling schemes, materials that are more like brittle solids than metals. In this project, we will revert to easily studied model alloy systems and apply a range of modern approaches to them. This should greatly advance the foundations of the subject.