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Meeting 2021 TMS Annual Meeting & Exhibition
Symposium Advances in Titanium Technology
Presentation Title Influence of Microtextured Regions on Early Plasticity in Ti64
Author(s) Joseph Wendorf, Jean-Charles Stinville, Marie-Agathe Charpagne, McLean Echlin, Andrew Polonsky, Paul Dawson, Tresa Pollock
On-Site Speaker (Planned) Joseph Wendorf
Abstract Scope Titanium alloys have been extensively used throughout the cold section of jet engines for several decades due to their high strength to weight ratio and excellent fatigue performance. However, many titanium alloys develop microtextured regions (MTRs) during forging which significantly reduce dwell fatigue life. 3D EBSD datasets collected via Tribeam tomography enable characterization of the overall millimeter scale 3D structure of MTRs at high enough resolution to also study the micron scale structure of individual grains and grain neighborhoods. Grains that begin to yield far below the macroscopic yield strength are predicted via linear elastic finite element techniques operating on such a dataset, and these results are validated against experimental DIC measurements. The influence of extreme hard and soft grain neighborhoods found within MTRs as well as the importance of soft grains embedded in otherwise hard oriented MTRs will be discussed.
Proceedings Inclusion? Planned:

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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