Applicability of life prediction methods to the low cycle fatigue of braze clad AlMn1.0Mg0.5 alloys

The original and modified universal slope methods, the uniform material law, and the modified Diercks equation have been applied to the low cycle fatigue life prediction in the braze clad AlMn1.0Mg0.5 alloys. The experimental data from clad and non-clad, pre-strained and non-pre-strained AlMn1.0Mg0.5 alloys at room temperature and at 75 and 180°C have been used to evaluate the applicability of the life estimation methods. It is likely that there is no universal method to predict the low cycle fatigue lives of all kinds of aluminium alloys. However, the modified universal slope method and the modified Diercks equation provide reasonably good predictions in these braze clad aluminium alloys.