Assessment of exploitation properties of cast aluminium alloys on the basis of creep and LCF investigations

摘要: In spite of the great progress in modelling material behaviour achieved during last decade, there is still a necessity to determine model which would describe complex processes more accurately. Among many problems be solved, proper selection and its verification on basis experimental data seems most important nowadays. Since creep fatigue mechanisms differ from each other, it perform experiment both kinds able verify models. The paper presents LCF results AlSi8Cu3 AlSi7MgCu0.5 cast aluminium alloys. For materials, two levels porosity were considered. Low (melt) was degassed production achieve density index less than 3%. high not order enlarge up value higher 6%. Up now, efforts are made carry out investigations whose main objective find such parameter, allow for describing dam-