Fatigue Resistance of A390.0 Alloy Modified with Phosphorus

The paper presents fatigue tests (unilateral pulsating vibrations) for hypereutectic silumin AlSi17Cu5Mg aimed at simulation of deflection of the piston head in a combustion engine. The methodology of the tests and the way of marking the deflection of the tested material is described together with the detailed description of the test stand. The fatigue resistance Z_G was identified in the tested material and a Wöhler diagram was prepared to show the areas of limited and unlimited fatigue resistance.