About this Abstract |
Meeting |
2025 TMS Annual Meeting & Exhibition
|
Symposium
|
Additive Manufacturing Modeling, Simulation and Machine Learning
|
Presentation Title |
A Numerical Analysis of Solidification Microstructure Dependence on Solidification Characteristics in Laser Based Additive Manufacturing |
Author(s) |
Sushil Patel, Swathi Tudumu, Laxmi Gurrala, Pikee Priya |
On-Site Speaker (Planned) |
Pikee Priya |
Abstract Scope |
The dependence of alloy microstructure on cooling rates is well known in literature. However, with the advent of additive manufacturing where components are built layer by layer using a heat source e.g. laser, arc, wire, etc., which melts material in form of either metal powders or wires, very high cooling/solidification rates can be achieved. The evolution of microstructures under such processing conditions is not well understood. This work aims to compare and understand the evolution of microstructures in different sections of a melt pool during Selective Laser Melting of various industrially important alloys (Inconel718, AlSi10Mg, 316LSS). The difference in alloy thermodynamics, kinetics and numerically determined thermal solidification characteristics such as thermal gradients and cooling rates are responsible for the difference in grain morphologies, size distributions and texture. This study aims to bring out these differences in selective laser melted sections in the mentioned alloy systems which determine their mechanical performance. |
Proceedings Inclusion? |
Planned: |
Keywords |
Additive Manufacturing, Computational Materials Science & Engineering, ICME |