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Meeting Materials Science & Technology 2020
Symposium Additive Manufacturing: Alloy Design to Develop New Feedstock Materials
Presentation Title Development of Oxidation Resistant Multi-Principle Element Alloys Applied with Additive Manufacturing
Author(s) Jose Loli, Yining He, Amish Chovatiya, Zachary Ulissi, Bryan Webler, Jack Beuth, Maarten De Boer
On-Site Speaker (Planned) Jose Loli
Abstract Scope Multi-Principle Element Alloys (MPEAs) are shown to have exceptional properties and demonstrate promise as a new methodology for alloy discovery. We focus on screening alloys that can be deposited as coatings by additive manufacturing and will further exhibit high oxidation resistance. To determine candidate MPEAs, we simulated CALPHAD data of 5 and 4 element equimolar combinations from a 12-element palette to screen alloys that were single phase at the solidus. Because oxidation behavior is difficult to predict for MPEAs, we made use of a regression model fitted on experimental data found in literature. We then arc-melted, characterized, and further screened candidate alloys based on oxidation behavior. To determine their compatibility with additive manufacturing, cracking susceptibility was tested with single laser track experiments. Given the complex interplay between oxidation resistance, MPEAs, and additive manufacturing, we expect our balanced modeling, machine learning, and experimental approach will lend insight in future MPEA development.


3D Characterization of Cracks Formed in “Weldable” AA6061 and Implications for Alloy Design
Accidental Alloy Development: In-situ Evolution of AM Powder and Opportunities for New Material Synthesis Pathways
An Interdisciplinary Approach for Alloy Design for Additive Manufacturing
Application of Taguchi, Response Surface, and Artificial Neural Networks for Rapid Optimization of Direct Metal Laser Sintering Process
CALPHAD Informed Design of Rare-earth Containing Alloys for Additive Manufacturing
Characterization of Spatter with Organized Features in Laser Powder Bed Fusion
Development of Oxidation Resistant Multi-Principle Element Alloys Applied with Additive Manufacturing
High-Throughput Accelerated Alloy Development
Laser Additive Manufacturing of Nanocomposite Powders
Mechanical Alloying of Feedstock Powder for Additive Manufacturing by Selective Laser Melting: Aluminum Alloy Matrix Composites
Micro-crack Mitigation by Alloy Modification in the Additively Manufactured Ni-base Superalloy CM247LC
Microstructure and Property Variability in DED Inconel 718 as a Function of Build Rate
Opportunities to Improve the Mechanical Properties of Titanium Alloys Produced by Laser Powder Bed Fusion
Optimization of Nitrogen-Atomized 17-4 Stainless Steel Feedstock for AM Processing
Processing of Y2O3-modified Nickel Superalloy by Selective Laser Melting.
Residual Stress Mitigation of Additive Manufactured Stainless Steel 316L Components through the Directed Energy Deposition Inclusion of TiC Nanoparticles
Sensitivity Analysis and Composition Design for Metal Additive Manufacturing Using CALPHAD-based ICME Framework

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