Macroscopic behaviour of materials is often controlled by microscopic events; this has driven interest in testing and analysing increasingly smaller features. The ability to perform mechanical tests on the micron scale, with modelling and high-resolution chemical and structural analysis on the same scale, now makes it possible to investigate in detail the mechanisms controlling one of the most complex modes of fracture: stress corrosion cracking (SCC). In this paper, through such a multifacet...