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Meeting 2021 TMS Annual Meeting & Exhibition
Symposium Advances in Titanium Technology
Presentation Title Towards an ICME Framework of Designing Post-process for Additively Manufactured Ti-6Al-4V
Author(s) Shengyen Li, Kirby Matthew, James Sobotka
On-Site Speaker (Planned) Shengyen Li
Abstract Scope Metal additive manufacturing produces net-shape products and generally introduces local features that need additional heat treatments to tailor the microstructure to meet performance requirements. This presentation will introduce an ICME workflow to discover the processing-structure-properties relations and optimize post-building heat treatment of AM-built Ti-6Al-4V. In this workflow, we adopt a finite-element, heat-transfer model to simulate AM-building process. Scheil-Gulliver and a martensitic transformation models assist to evaluate micro-segregation and estimate the stability of the BCC phase. This workflow also accommodates a phase transformation model to predict the microstructure evolution through an AM building and subsequent heat-treatments. The predicted microstructure features are the inputs to a mechanistic model to calculate the stress-strain curves. We will exercise this workflow to design a heat treatment to improve the ductility of Ti-6Al-4V. This presentation will summarize the predicted values, including phase fraction, grain size, yield strength, and elongation, to compare to the measured values.
Proceedings Inclusion? Planned:
Keywords Additive Manufacturing, Titanium, ICME

OTHER PAPERS PLANNED FOR THIS SYMPOSIUM

An In-situ Deformation Micro-mechanisms Study of a Ti-Al-V-Fe (α+β) Alloy
Anomalous c+a Dislocation Activity in TIMETAL-407 (Ti-407)
Atom Probe Tomographic Study of Precursor Metastable Phases and Their Influence on α Precipitation in the Metastable β-titanium Alloy, Ti-5Al-5Mo-5V-3Cr
Colony Orientation Dependence in the Deformation and Spheroidization of Two-Phase Titanium Alloys
Development of Cold Spray Additive Technology for Manufacturing Titanium Mill Products
Effect of Grain Orientation on Slip Transmission in Titanium: An Analysis of Strain Localization within Slip Bands
Enhanced Work-hardening from Oxygen-stabilized Omega Precipitation in Aged Metastable Beta Ti Alloys
Hierarchical Twinning Microstructure in Beta Titanium Alloys
How Microtextured Regions Influence the Early Slip Activity in Ti Alloys
Influence of Microtextured Regions on Early Plasticity in Ti64
Investigation to Hole Surface Microstructure Evolution in Drilling of Aerospace Alloys: Ti-5553
Localization of Plastic Strain in Microtextured Regions of Ti-6Al-4V
Multiscale Characterization of Titanium Alloy Microstructures and Links to Processing and Properties
Opportunities to Develop Superior Titanium Alloys by Laser Powder Bed Fusion
Optimizing Microstructure and Properties of Additively Manufactured Titanium Alloys Using Alloying and Post-AM Heat-treatment
The Effect of Process Parameters on Abnormal Grain Growth during Beta Annealing of Hot-Forged Ti-6Al-4V
Titanium Mill Product Yield Enhancement via Electrochemical Conditioning
Towards an ICME Framework of Designing Post-process for Additively Manufactured Ti-6Al-4V

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