|About this Abstract
||2022 TMS Annual Meeting & Exhibition
||2022 Technical Division Student Poster Contest
||SPG-34: Development of a Generalized Fatigue Assessment Approach for Steel Castings
||Bret Cordle, James Jordon, Paul Allison, Hayley Brown, Jacob Williamson
|On-Site Speaker (Planned)
In this work, a generalized model for steel castings is employed to capture the effects steel casting features (i.e. shrinkage porosity, gas pores) on the fatigue performance. It has been well documented that the soundness of the casting has drastic effects on the fatigue performance, however there is still a modern day need to present a quantified assessment of process-structure-property performance that incorporates common non-destructive analysis techniques to estimate the fatigue life properties of the component. The proposed model elucidates constitutive fatigue behavior and has been created from strain-life fatigue behavior, microstructural properties, and post-mortem fractography for cast 4130 steel. The model was validated across literature data concerning the fatigue life of other cast steels to show the applicability of the new model across the industry. Further, the model presented has been shown to provide fatigue life predictions of cast steels to an acceptable degree of engineering accuracy.
||Iron and Steel, Mechanical Properties,