Authors:
Michael Andersson (1)
1- Höganäs AB, Sweden
Abstract:
Astaloy CrS is a water atomized iron powder alloyed with 0.85%Cr and 0.15%Mo, recently developed to meet coming demands for sustainability. For many applications fatigue strength is a limiting factor, and reliable fatigue models and data are key to using any material to the best potential, not least for sustainability reasons. This paper focuses on the fatigue strength of Astaloy CrS, where the strength of this new material is compared to more traditional alloying systems, such as FeCuC. In parallel, a fracture mechanics model fatigue is developed to predict the strength of the material. With this model it’s possible to include both the effect of density as well as stress concentrations to estimate component strength under different conditions.
DOI:
https://doi.org/10.59499/EP235756038