Alloy Design through Integration of Mechanical Testing, Characterization, and Modeling

National Laboratory: 
Pacific Northwest National Laboratory
Characterization Class: 
Mechanical Behavior of Materials
Microscopy
Description: 

Pacific Northwest National Laboratory’s Reactor Materials and Mechanical Design Group has the expertise and equipment to perform metallography, scanning electron microscopy, energy-dispersive spectroscopy, electron backscatter diffraction, and nanometer-scale chemical imaging in conjunction with tensile, dynamic, corrosion, and small-specimen mechanical testing. All of this expertise is collocated in one facility. PNNL also offers multiscale modeling expertise that combines the finite element method, phase-field modeling, Monte Carlo simulations, molecular dynamics simulation, and density functional theory.

Capability Bounds: 

Access to a variety of tools enables PNNL to accommodate different sample sizes and geometries. While, for multiscale modeling, PNNL can select  techniques that are appropriate to the scale of the problem.

Unique Aspects: 

Collocation of characterization, testing, and modeling facilities and staff creates the unique ability to offer integrated science-based solutions for both alloy development and mitigating alloy degradation in extreme environments. Meanwhile, resident expertise within the group spans a range of modeling scales in length and time. PNNL’s modeling experts work closely with experimentalists in the group.

Availability: 

Facilities and modeling capabilities are available for U.S. Department of Energy, Office of Energy Efficiency and Renewable Energy project work.

Single Point of Contact: 

Name: Nicole Overman
Email: nicole.overman@pnnl.gov
Phone: 509-375-1913

References: 
  1. T. C. Kaspar, T. C., M. E. Bowden, C. M. Wang, V. Shutthanandan, N. R. Overman, R. M. van Ginhoven, B. D. Wirth, and R. J. Kurtz. "Epitaxial Fe/Y 2 O 3 interfaces as a model system for oxide-dispersion-strengthened ferritic alloys."Journal of Nuclear Materials 457 (2015) 352-361.
  2. D. E. Burkes, R. Prabhakaran, T. Hartmann, J.-F. Jue, and F. J. Rice. "Properties of DU–10 wt% Mo alloys subjected to various post-rolling heat treatments." Nuclear Engineering and Design 240, no. 6 (2010): 1332-1339.
  3. N. R. Overman, C. T. Overman, D. J. Edwards, and E. W. Hoppe. "Mechanical property anisotropy in ultra-thick copper electrodeposits." Applied Physics A120, no. 3 (2015) 1181-1187.
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