Abstract
The High Cycle Fatigue (HCF) properties of polycrystalline Nickel based superalloy Inconel 100 containing shrinkages and pores have been studied. The main objective of this work is to study the influence of clustered defects (pores and shrinkages) on the fatigue properties of the material. Four test samples are tested experimentally to determine their fatigue life. The three dimensional characterization of the defects are done by X-ray Computed Tomography (X-ray CT). From the images obtained, an image based finite element (FE) model is developed to simulate numerically with elastic and elasto-viscoplastic behaviour law. The aspect ratio and sphericity of the defects clearly distinguishes the type of defect in the specimen. Defect’s size along with its position plays an important role compared to other morphological parameters of the defect. Failure is found to occur in the region of clustered defects (shrinkages). It is possible to determine the fatigue life of the material numerically by means of stress concentration factor (SCF) of the defect.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
