ProgramMaster Logo
Conference Tools for MS&T23: Materials Science & Technology
Register as a New User
Submit An Abstract
Propose A Symposium
Presenter/Author Tools
Organizer/Editor Tools
About this Abstract
Meeting MS&T23: Materials Science & Technology
Symposium Phase Transformations and Microstructure Evolution during Post-Processing of Additively Manufactured Metals
Presentation Title Tuning the Precipitate Microstructure in the Selective Laser Melted Ti-6Al-2Sn-4Zr-2Mo Alloy via Post Heat Treatment
Author(s) Deepak V. Pillai, Sydney Fields, Dian Li, Yufeng Zheng
On-Site Speaker (Planned) Yufeng Zheng
Abstract Scope Near-alpha Titanium alloys are widely used for high temperature applications in the field of aerospace due to its superior creep properties. Additive manufacturing (AM) is gaining a large acceptance in the manufacturing of hard-to-machine Ti alloys. The major challenge with the AM near alpha Ti alloys is the intricate martensitic microstructure with high strength but poor ductility. In this work, the microstructure evolution in selective laser melted (SLM) Ti-6Al-2Sn-4Zr-2Mo alloy during post heat treatment was studied using advanced scanning and transmission electron microscopy. It was found that the prior beta phase has columnar grains along the build direction with acicular alpha/alpha’ martensite phases throughout the beta matrix. The initial martensitic phase subjected to decomposition during post heat treatment, leading to a final microstructure with coarse primary alpha and fine secondary alpha precipitates. This work is supported by the NSF CAREER Award, grant DMR – 2145844.


Additive Manufacturing of 718 Ni ODS Alloys and Haynes 230 Alloys with Nanoprecipitates
Impact of Heat Treatment Rates on Phase Transformation in Additively Manufactured Gamma Prime Superalloys IN738LC
Influence of Post-process Forging on Microstructure and Properties of LPBF AlSi10Mg
Influence of Post Processing Annealing on Precipitation and Deformation Behavior of Additvely Processed Beta Titanium Alloys
Laser Reheating and Polishing of Powder-blown Directed Energy Deposition
Microstructural Evolution of One and Two Step Heat Treatments on Electron Beam Powder Bed Fusion Fabricated Haynes 282
Microstructure and Mechanical Characterization of As-deposited and Forged Wire Arc Additively Manufactured (WAAM) 316LSi
Microstructure Engineering of Specialty Alloys via Post Advanced Manufacturing Thermal Treatments
Observation of Structure Coarsening During Annealing of Additively Manufactured Ti-6Al-4V
Tuning the Precipitate Microstructure in the Selective Laser Melted Ti-6Al-2Sn-4Zr-2Mo Alloy via Post Heat Treatment
Understanding the Microstructure Evolution Pathway During the Post Heat Treatment in the Direct Energy Deposited Ti-5Al-5Mo-5V-3Cr Alloy
Use of In Situ TEM Heating to Study Transformation Pathways for Metastable Phases in New Candidate Alloys for Additive Manufacturing

Questions about ProgramMaster? Contact