|About this Abstract
||2019 TMS Annual Meeting & Exhibition
||Additive Manufacturing of Metals: Fatigue and Fracture III
||Surface Roughness Effects on Rotating-bending Fatigue Behavior of Additive Manufactured Stainless Steel 316L
||Ross Wykoff, Jutima Simsiriwong
|On-Site Speaker (Planned)
The ability to create parts with complex geometries has made the use of additive manufacturing (AM) more widespread in recent years. Among various types of metals, stainless steel (SS) 316L is commonly used due to its excellent mechanical properties and corrosion resistance. Since the mechanical behavior, particularly under cyclic loading, of AM parts is not well understood, a study is currently being carried out to obtain the fatigue resistance of laser-based powder bed fusion SS-316L subjected to rotating-bending cyclic loads. In this study, a series of tests is being performed using a cantilevered rotating-bending machine at various stress levels. Two sets of specimens, as deposited and machined conditions, are tested to obtain the effect of surface finish on fatigue behavior. In addition, a fracture analysis is conducted to obtain the microstructural factor responsible for crack initiation.
||Planned: Supplemental Proceedings volume