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Opportunity at Air Force Research Laboratory (AFRL)

Modeling Structural Alloys for Aerospace Applications

Location

Materials & Manufacturing, RX/Manufacturing & Industrial Technologies Division

RO# Location
13.25.09.B6948 Wright-Patterson AFB, OH 454337817

Advisers

Name E-mail Phone
Woodward, Christopher Freundschuh christopher.woodward@us.af.mil 937.255.9816

Description

This research focuses on developing and applying modeling and simulation methods to explore broad aspects of metal alloy development. Target materials include but are not limited to high-temperature structural materials such as Ni-based superalloys, refractory metal intermetallics, and Ti-Al alloys. Current interest areas include modeling plasticity at the atomic and micron scales using electronic structure, atomistic, and dislocation dynamics methods. Research in this area includes size scale, chemical, ordering, solution, and precipitate effects. In addition, free energy models, based on first principles methods, are used to predict stability and the nature and evolution of defects in these materials. This includes properties of both the liquid and solid phases, and the microstructural evolution of complex metal alloys. Significant computational resources are available through the High-Performance Computing Modernization Office to perform large-scale calculations, analysis, and visualization. Research is closely integrated with the group’s three-dimensional characterization and microscale plasticity experimental techniques, and the AFRL/RX characterization facility.

 

Reference

Rao SI, et al: Philosophical Magazine 87: 4777, 2007

 

Keywords:
Plasticity; Dislocation; Electronic structure; Disloaction dynamics; Defects; Interfacial boundaries; Planar faults; Superalloys; Intermetallics;

Eligibility

Citizenship:  Open to U.S. citizens and permanent residents
Level:  Open to Postdoctoral and Senior applicants
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