ProgramMaster Logo
Conference Tools for MS&T21: Materials Science & Technology
Login
Register as a New User
Help
Submit An Abstract
Propose A Symposium
Presenter/Author Tools
Organizer/Editor Tools
About this Abstract
Meeting MS&T21: Materials Science & Technology
Symposium Processing—Microstructure—Property Relationships of Titanium and Titanium Alloys
Presentation Title Nano-scale O” Phase and Fine-scale Alpha Precipitation in a Metastable Beta Ti-5Al-5Mo-5V-3Cr Alloy
Author(s) Dian Li, Stoichko Antonov, Rongpei Shi, Zachary Kloenne, Hamish Fraser, Yufeng Zheng
On-Site Speaker (Planned) Yufeng Zheng
Abstract Scope The microstructures in metastable beta titanium alloys mainly contain the hcp alpha precipitates and the bcc beta matrix, generated by the precipitation reaction during the aging treatment. In general, alpha precipitates prefer to nucleate along the beta grain boundary and form a thick layer of grain boundary alpha microstructure. However, by introducing nano-scale particles into the interior of beta grains, fine-scale intragranular alpha microstructures can be produced in the metastable beta titanium alloys. In this work, the characterization of nano-scale ordered O” phase and the influence of nano-scale O” phase on subsequent alpha precipitation in a metastable beta Ti-5Al-5Mo-5V-3Cr alloy will be introduced. The structure and composition of O” particles was investigated using aberration-corrected S/TEM and atom probe tomography. The driving force from these O” phase particles for the subsequent alpha precipitation was studied using CALPHAD. The fine-scale intragranular alpha microstructure produced will be discussed in detail.

OTHER PAPERS PLANNED FOR THIS SYMPOSIUM

A Data-driven Analysis for Selection and Use of Conventional Ti Alloys for Aeroengine Applications and Future Directions
Computational Polarized-Light Microscopy for Microtextured Regions Characterization in Titanium Alloys
Computational Polarized Light Microscopy for Orientation-based Quality Control
Deformation Behavior of Ti-Ni-Fe Based Ternary B2 Pseudo Binary Intermetallic
Exploiting Structural and Compositional Instabilities in Titanium Alloys to Optimize Microstructure/Property Interrelationships in Samples Fabricated by Additive Manufacuring
Influence of Athermal vs. Isothermal Omega Precipitation and Alpha Precipitation on TRIP/TWIP Deformation Mechanisms in Metastable Beta Ti alloys (invited)
Nano-scale O” Phase and Fine-scale Alpha Precipitation in a Metastable Beta Ti-5Al-5Mo-5V-3Cr Alloy
Now On-Demand Only: Strain Energy Density Fatigue Assessment of Ti-6Al-4V for Plain and Notched Geometries
Obtaining High Strength-ductility Combination inTIitanium by Microstructure and Texture Engineering through Multiaxial Plane-strain Forging
P1-29: Hierarchical Twinning Microstructure in the Metastable β Ti-24Nb-4Zr-8Sn Alloy
P1-30: Analysis of Temperature Factor Influence on the Nature of the Titanium Alloy Deformation during Extrusion
Regulating Elastic and Plastic Deformation by Heterogeneous Microstructure Design in Ti-alloys
Role of Novel Highly-indexed Twinning in Hierarchical α Microstructure in Metastable β Ti-5Al-5Mo-5V-3Cr Alloy
The BMG to Ti Weld, a Pool for Microstructure: Property Characterization
The Composition-processing-microstructure-property Relationships of Fe and Al Modified Ti-Cr Alloys

Questions about ProgramMaster? Contact programming@programmaster.org