Effect of elastic stress on the rust layer of S450EW weathering steel formed in salt-spray was studied through electrochemical methods and characterisations on rust layers. Results show that stratification of the rust layer is mitigated with stress level enhanced on the steel. The stratification involves the magnetic Fe₃O₄/γ-Fe₂O₃ phase(s), which tends to segregate in the inner sublayer. The segregation was reduced by stress through a mechanism associated with the magnetomechanical effect. The magnetisation of the steel matrix can be completely regressed by stress up to 200 MPa. Thereby, the magnetic attraction between Fe₃O₄/γ-Fe₂O₃ and the matrix can be reduced considerably.

通过电化学方法和表征，研究了弹性应力对盐雾条件下S450EW耐候钢锈蚀层的影响。结果表明，随着钢上应力水平的提高，锈层的分层得以缓解。分层涉及到磁性的Fe ₃ ö ₄ /γ-的Fe ₂ ö ₃相（一个或多个），这倾向于在内部子层来隔离。通过与磁机械效应相关的机制，应力降低了偏析。钢基质的磁化强度可以通过最大200 MPa的应力完全消退。从而，铁之间的磁引力₃ ö ₄ /γ-的Fe ₂ ö ₃ 并且矩阵可以大大减少。