| Abstract: | Future Perspectives for the Powder Metallurgy by Structural Durability Considerations The fatigue behaviour under complex variable amplitude loading cannot be simply assessed by knowledge of constant amplitude data. The peculiarity of variable amplitude loading, which occurs in almost all technical applications, is the possible frequent exceedance of the so called fatigue limit without reducing the required service life of the components. This fact which is described as structural durability enables a lightweight design of components and results in an aimed material exploitation. Thus, this advantage has not yet been considered in the design of PM parts. The paper discusses the suitability of PM steels for such complex service loadings and if the concept of structural durability may open new application perspectives. |
