ProgramMaster Logo
Conference Tools for Materials Science & Technology 2020
Register as a New User
Submit An Abstract
Propose A Symposium
Presenter/Author Tools
Organizer/Editor Tools
About this Abstract
Meeting Materials Science & Technology 2020
Symposium Phase Transformations in Additively Manufactured Materials
Presentation Title Microstructure Engineering through Post-heat Treatment of Inconel 718 Superalloy Made by Laser Powder Bed Fusion
Author(s) Yunhao Zhao, Kun Li, Noah Sargent, Wei Xiong
On-Site Speaker (Planned) Yunhao Zhao
Abstract Scope The post-heat treatment is critical to control microstructure and property of additively manufactured (AM) Inconel 718 builds, to which work hardening is no longer applied. Therefore, dedicated investigations should be conducted to understand the heat treatment-microstructure-property relationships of AM Inconel 718. In this work, the effects of homogenization and aging heat treatments on the microstructure and property evolution in Inconel 718 made by laser powder bed fusion are studied by experiments and CALPHAD (calculation of phase diagrams) modeling. It is found the homogenization at a higher temperature than traditional methods can effectively introduce recrystallization and reduce residual strains. This can further remove anisotropic properties through microstructure engineering in the following aging processes. The effects of isochronal aging processes at various temperatures on the materials is investigated by a high-throughput approach. The present work provides a new pathway for the post-processing development of AM Inconel 718.


Design of Post-fabrication Heat Treatments for Ti Free Grade 300 Maraging Steel Manufactured Using Laser Powder Bed Fusion (LBPF) Process
Development of Non-equilibrium Thermodynamic Tools for Additive Manufacturing
Effects of Laser Powder Bed Fusion Parameters and Heat Treatment on Microstructure and Mechanical Behavior of Inconel 718 Alloy
In-situ Characterization of Rapid Phase Evolution of AM Metals with High Energy Synchrotron X-ray Diffraction
Laser Powder Bed Fusion of Grade 300 Maraging Steel for Tooling Applications
Laser Powder Bed Fusion of Stainless Steel 15-5PH: Microstructure Analysis and Process Optimization
Microstructure Engineering through Post-heat Treatment of Inconel 718 Superalloy Made by Laser Powder Bed Fusion
Phase Field Simulations of Cellular-to-Dendritic Transition under Additive Manufacturing Conditions
Process Optimization and Microstructure Analysis to Understand Laser Powder Bed Fusion of Stainless Steel 316L
Rapid Solidification of Aluminium 6061 Using Fast Scanning DSC
Real-time Observation of the Competition between Ferritic vs Austenitic Solidification in Micro-laser Welding of 316L Using Synchrotron X-ray Diffraction
Understanding the Effect of Thermal Gradients on Additively Manufactured (AM) Builds Using In Situ TEM

Questions about ProgramMaster? Contact