|About this Abstract
||2018 TMS Annual Meeting & Exhibition
||Additive Manufacturing of Metals: Establishing Location Specific, Processing-Microstructure-Property-Relationships III
||A-5: Deformation Mechanism of Inconel 718 Made by Additive Manufacturing and Investigated by In-situ Neutron Diffraction
||Qingge Xie, Yan Chen, Alexandru Dan Stoica, Gian Song, Sarma Gorti, Radhakrishnan Balasubramaniam, Hassina Z Bilheux, Michael M Kirka, Ryan R Dehoff, Jean-Christophe Bilheux, Louis J. Santodonato, Ke An
|On-Site Speaker (Planned)
Inconel 718 samples made by additively manufacturing process (AMP) with two different microstructures were studied using time-of-flight in-situ neutron diffraction. The lattice strain behavior of both samples was investigated under tensile and compression tests. Although similar behavior as the deformation of single phase face centered cubic (FCC) metals was observed, i.e. the <220> peak intensity in the load direction (LD) increases in compression and the <111> and <200> peak intensities increase in tension. The deformation of the FCC matrix of current samples under the effect of the precipitate shows that the peak intensity increase with additional <111> and <200> peaks at early deformation in compression. The <200> peak intensity and the <400> peak intensity show different evolution trend in tension. To understand this irregular behavior, the micromechanical mechanism including the evolution of the crystallographic texture, lattice strains of precipitates and the loading sharing among different grain families will be presented.
||Planned: Supplemental Proceedings volume