|About this Abstract
||Materials Science & Technology 2020
||Phase Transformations in Additively Manufactured Materials
||Design of Post-fabrication Heat Treatments for Ti Free Grade 300 Maraging Steel Manufactured Using Laser Powder Bed Fusion (LBPF) Process
||Rangasayee Kannan, Donovan Leonard, Peeyush Nandwana
|On-Site Speaker (Planned)
In this study, a thermodynamic and kinetic assessment of precipitation and austenite reversion during various post-fabrication heat treatments in Ti free grade 300 maraging steel manufactured using laser powder bed fusion process is conducted. A thermo-kinetic model is developed using the principles of Scheil solidification, driving force for the onset of nucleation, rule of mixtures, in combination with classical theories for nucleation and growth of precipitates to predict the precipitation and austenite reversion kinetics during various post fabrication heat treatments. The thermo-kinetic model was applied to predict the optimal post fabrication heat treatment.