ProgramMaster Logo
Conference Tools for 2017 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 2017 TMS Annual Meeting & Exhibition
Symposium Hume-Rothery Award Symposium: Alloy Phase Chemistry at the Atomic Level - Opportunities and Challenges
Presentation Title Design and Development of Novel High-temperature Creep Resistant 9% Cr Steels
Author(s) Dieter Isheim, Yao Du, Cameron T Gross, Semyon Vaynman, Yip-Wah Chung
On-Site Speaker (Planned) Dieter Isheim
Abstract Scope Structural steels soften remarkably when heated above several hundred C due to the transition from athermal dislocation glide to thermally activated glide and diffusion processes accelerating changes of the microstruture critical to strength. We utilize a novel combination of several strategies for the design of 9% Cr steels with reduced carbon concentration to suppress Cr<SUB>23</SUB>C<SUB>6</SUB>, precipitating semi-coherent mono-carbonitride precipitates (MX, M = slow diffusing early transition metal, X = carbon or nitrogen), minimizing the driving force and nucleation of Laves and Z-phases, for enhanced microstructural stability, and addition of Mo and W for solid solution strengthening with the ultimate goal to obtain creep rupture times longer than 100,000 hours at 650C and 35MPa, for applications in electric power generation. We present results from computational and experimental studies, including atom-probe tomography, phase stability and precipitation kinetics and estimations of the long-term microstructural stability and mechanical properties during exposure to above 700C.
Proceedings Inclusion? Planned: Supplemental Proceedings volume

OTHER PAPERS PLANNED FOR THIS SYMPOSIUM

A New Look at Steel Martensite Tempering with Advanced Characterization Tools
Advanced FIM and APT Techniques at the University of Oxford
Advanced Microstructural and Chemical Characterization of Nano-scale NiMnSi Precipitates Formed in Irradiated Reactor Pressure Vessel Steels Using Atom Probe Tomography and Scanning Transmission Electron Microscopy
Arranging Atoms for Fun and Profit: A Tale of Two Smiths
Atomic-scale Analytical Tomography
Atomic Scale Modeling of Phase Separation in Fe-Cr Alloys
Atomistic Modelling of Carbon Redistribution in Martensite Phase
Combining Small Angle Scattering, Atom Probe Tomography and Differential Calorimetry for a Better Characterization of Solid Solution Decomposition
Design and Development of Novel High-temperature Creep Resistant 9% Cr Steels
Design of Nd-Fe-B Permanent Magnets with Maximum Coercivity by Controlling Grain Boundary Chemistry at the Atomic Level
Determination of Interfacial Free Energies in Two-phase Metallic Alloys: Atom-probe Tomographic Experiments and First-principles Calculations
Diffusivity Determination of Slow Diffusion Systems using Diffusion Couples and Multiples
First-principles Modeling of Anomalous Precipitation in W-Re Alloys under Neutron Irradiation
Grain Boundaries in Molybdenum. The Role of Segregation for an Improved Ductility
Interaction of Solutes with Interfaces in Iron
Kinetic Pathways in Phase Separation Processes: Atom-Probe Tomography versus Modeling
Local Order and Lattice Dynamics in a Shape Memory Strain Glass Alloy
Method for Correcting Atom Probe Tomography Trajectory Aberration Artifacts in Multiphase Materials
Microstructural Characterization of Mn-Ni-Si Precipitates in Reactor Pressure Vessel Steels from the High Fluence Intermediate Flux UCSB ATR-2 Irradiation
Nanoalloys & Nanoparticles for Catalysis: Insights from Atom Probe Tomography & Complementary Techniques
On the Amazing Role of Atom Probe Tomography in Nuclear Materials Research: Some Seminal Contributions and Opportunities for Developing a New Lab On a Chip Paradigm
Outlooks for Atom Probe Microscopy
Phase Decomposition in Fe-Cr Alloys under Irradiation
Precipitation Kinetics: Quantitative In-situ Characterization Using Small-angle Scattering Helps Establish Models Validity
Prediction of Segregation Induced Precipitation at Dislocations via Atomistic Simulations
Quantification of Hydrogen using Atom Probe Tomography
Revisiting Field Ion Microscopy
Solute Distribution Analysis of Early Stages of Aging in Al-Mg-Si Alloys via Atom Probe Tomography
Solute Segregation to Migrating Ferrite/Austenite Interfaces
Spinodal Decomposition in FeCr Alloys: From Fundamental to Applications
The Role of Atom Probe Tomography in Decoding the Materials Genome
Thermally Induced Phase Transformations in Beta-titanium Alloys and Corresponding Effects on Mechanical Properties
Unique Insights from the Correlated Combination of Atom Probe and Electron Tomography

Questions about ProgramMaster? Contact programming@programmaster.org