Finite Element Predictions of Grainscale Behavior in BCC Metals
Abstract not provided.
Publications
Comparing Models and Experiments on Tantalum Oligocrystals
Abstract not provided.
Relating Strain Accumulation to Microstructure in BCC Tantalum
Abstract not provided.
BCC Crystal Plasticity Model Incorporating Temperature Strain Rate and Non-Schmid Effect
Abstract not provided.
Experimental Measurements of Slip in BCC Metals
Abstract not provided.
Application of Generalized non-Schmid Yeild Law to Low Temperature Plasticity in BCC Transition Metals
Proposed for publication in Modeling and Simulation in Materials Science and Engineering (MSMSE).
Abstract not provided.
Indentation Cracking Near Edges and Interfaces
Abstract not provided.
Physically-Based Single Crystal and Polycrystal Models for Low-Temperature Plasticity in BCC Metals
Abstract not provided.
In situ TEM Observation of Plastic Deformation Process in Tantalum
Abstract not provided.
Incorporating Data from Experiments and Atomistic Simulations into Crystal Plasticity Models for BCC Metals
Abstract not provided.
Task II Modeling: Crystal Plasticity Simulations
Abstract not provided.
A Physically-Based BCC Crystal Plasticity Model Incorporating Non-Schmid Yield Behavior
Abstract not provided.
Multiscale Experiments on Stress Projection Parameters in BCC Tantalum
Abstract not provided.
Shape Memory Effect and Superelasticity in NiTiPt High Temperature Shape Memory Alloys
Abstract not provided.
Shape Memory Effect and Superelasticity in a Ti-rich NiTiPt High Temperature Shape Memory Alloy
Abstract not provided.
Deformation of Ta: From slow to fast
Abstract not provided.
An Investigation of Grain Orientation and Strain Fields in BCC Tantalum
Abstract not provided.
Nanoindentation and TEM Characterization of Ion Irridiated 316L Stainless Steels
Energy Technology 2012: Carbon Dioxide Management and Other Technologies
Understanding the effects of extensive radiation damage in structural metals provides necessary insight for predicting the performance of those metals considered for application in the extreme radiation environment. Predicting mechanical performance after long term radiation exposure is of great importance to extending the life of current nuclear reactors and for developing future materials for the next generation of reactors. A combination of finite element modeling, nanoindentation, and TEM characterization were used to rapidly determine the microstructure and mechanical properties influences of ion irradiation on a standard 316L stainless steel sample. The results of this study found that ion irradiation and small scale mechanical property testing can be used to characterize extensive levels of radiation damage structure, only when significant consideration is given to ion irradiation depth, surface roughness and polishing condition, the irradiation temperature, and.many other experimental parameters. © 2012 The Minerals, Metals, & Materials Society. All rights reserved.
Rapid Screening of Cladding Materials for Generation IV Nuclear Reactors
Abstract not provided.
Nanoindentation and TEM Characterization of 316L Stainless Steels
Abstract not provided.
An ICME approach to predict performance margins caused by microstructural variability
Abstract not provided.
Simulations and Experiments of the Deformation Behavior of BCC Metals
Abstract not provided.
Incorporating atomistic data of lattice friction into BCC crystal plasticity models
International Journal of Plasticity
Despite the technological importance of body-centered cubic (BCC) metals, models of their plastic deformation are less common than those of face-centered cubic (FCC) metals, due in part to the complexity of slip in BCC crystals caused by the thermal activation of screw dislocation motion. This paper presents a physically based crystal plasticity model that incorporates atomistic models and experimental measurements of the thermally activated nature of screw dislocation motion. This model, therefore, reproduces the temperature, stress, and strain rate dependence of flow in BCC metals in a simple formulation that will allow for large, grain-scale simulations. Furthermore, the results illustrate the importance of correctly representing mechanistic transitions in materials with high lattice friction. © 2012 Elsevier Ltd. All rights reserved.
Direct Observation of Plastic Deformation Mechanisms in Tantalum via In-Situ TEM and SEM Straining Experiments
Abstract not provided.
In situ and Ex situ TEM Ion Irradiation for Cladding Materials
Abstract not provided.
Results 51–75 of 135