ProgramMaster Logo
Conference Tools for 2022 TMS Annual Meeting & Exhibition
Login
Register as a New User
Help
Submit An Abstract
Propose A Symposium
Presenter/Author Tools
Organizer/Editor Tools
About this Abstract
Meeting 2022 TMS Annual Meeting & Exhibition
Symposium Refractory Metals
Presentation Title Flow behavior and associated microstructures of niobium at 1200 to 1500°C
Author(s) Emily Brady, Eric Taleff
On-Site Speaker (Planned) Emily Brady
Abstract Scope The tensile flow behavior of a Type 2 niobium sheet material, per ASTM B393-18, was evaluated at temperatures from 1200 to 1500°C and true-strain rates of 10-3 and 10-4 s-1 in a vacuum environment. Microstructures before and after tensile testing were characterized using scanning electron microscopy and electron backscatter diffraction. Microstructural features characterized include grain size, microtexture, and structures produced during deformation at elevated temperature. The flow behaviors and microstructures of this material are compared to those of a Type 1 niobium material; the Type 1 material has a lower impurity content than the Type 2 material. The Type 2 material is more resistant to grain growth and presents higher flow stresses than the Type 1 material. Differences in microstructure between the Type 1 and Type 2 materials are used to rationalize the differences in flow behaviors observed at elevated temperatures.
Proceedings Inclusion? Planned:
Keywords Mechanical Properties, Characterization, High-Temperature Materials

OTHER PAPERS PLANNED FOR THIS SYMPOSIUM

Bending Creep Deformation of ODS MoLa with 0.6 vs 1.1 wt.%La
Design of BCC high-entropy alloys with low neutron absorption cross-section
Design of MoWTaTiZr Refractory Multi-principal Element Alloys
Development of Heat-Treatable Crss-Cr3Si-based Alloys: Microstructure, Oxidation, and Creep
Development of novel chromium-superalloys strengthened by B2 intermetallic precipitates
Effect of heating rate and substrate on the oxidation behavior of hafnium aluminum diboride thin films
Flexible powder production for additive manufacturing of refractory metals and alloys
Flow behavior and associated microstructures of niobium at 1200 to 1500°C
Grain boundary doping as effective method to improve mechanical properties in ultra-fine grained tungsten
Grain Boundary Segregation Engineering in Technically Pure Molybdenum Examined via Three-point Bending Tests
High-throughput Engineering of Oxidation Behavior in complex refectory alloys
Hydrogen Reduction of Cobalt(II,III) oxide to make sub-micron and micron size cobalt metal powder for WC-Co synthesis
NanoPhase Separation Sintering in Mo and Mo-W Based Systems
Nanostructured tungsten alloys for nuclear fusion
Oxidation behavior of Mo-Si-B-Al alloys at elevated temperature
Platinum-based superalloys: Combating high temperatures and aggressive environments
Realizing sub-micron tungsten and tungsten composite microstructures via deformable punch spark plasma sintering
Refractory High Entropy Alloys for Applications in Extreme Environments
Studies on the phase formation of cobalt contacted with zinc vapour
Sustainability-based Selection of Materials for Refractory High Entropy Alloys
Tensile Properties of Molybdenum & ODS MoLa Sheet at Elevated Temperatures
The influence of impurities on the interfacial chemistry of niobium – alumina high-temperature refractories
The oxidation behavior of the eutectic alloy Mo-20Si-52,8Ti in dry and wet atmospheres
Thermal stability of thin rolled potassium-doped tungsten sheets at temperatures between 1100 C and 1400 C
Thermodynamic assessment of the V-Ti-B system
Tungsten grain optimization and composite fabrication for use in fusion reactors

Questions about ProgramMaster? Contact programming@programmaster.org