Atomistic studies on irradiation damage in iron

Two topics involving irradiation damage in alpha-iron have been considered. First, damage cascades representative of those that would be induced by radiation have been simulated using molecular dynamics (MD). The number and type of defects produced are compared for pure iron and iron with a small hydrogen concentration. Second, the inter- action energy between point defects and line dislocations has been calculated for a number of configurations, using both molecular statics methods and calculations based on linear elastic continuum theory and the dipole force tensor. Results from both methods are com- pared. Results from these two topics are relevant for predicting macroscopic behaviors such as creep and plasticity in reactor structural materials.

Department dc:contributor.department

Nuclear and Radiological Engineering

Grantor dc:publisher

Georgia Institute of Technology

Year dc:date.issued

2010

Author dc:creator

• Hayward, Erin M. G.

Advisor dc:contributor.advisor

• Deo, Chaitanya S.

Committee members dc:contributor.committeemember

• Stacey, Weston
• Zhu, Ting

• Radiation
• Cascade
• Molecular dynamics
• Defect
• Dislocation
• Interaction energy

Handle dc:identifier.uri

http://hdl.handle.net/1853/34004

OAI identifier oai:identifier

oai:repository.gatech.edu:1853/34004