Fiscal Year	2007
Division	Graduate School of Engineering & Applied Science
Department	Mechanical & Aerospace Engineering
Investigator(s)	McNelley, Terry R.
Sponsor	University of Texas, Austin (Other)
Summary	This proposal is for funding to assess the grain boundary sliding to solute drag creep transition during deformation under various stress states including uniaxial and biaxial conditions, and to compare experimental and model textures for this transition. Microtexture analysis of cavity initiation and growth will be extended to determine the contribution of grain boundary sliding under various stress states and will include three-dimensional examination of growing cavities in relation to the dispersed constituent particles. Mechanical testing of thermomechanically processed DC cast material will be conducted to assess the role of grain refinement in the transition.
Keywords	Superplasticity Aluminum Magnesium Alloys Deformation Processing Failure
Publications	Publications, theses (not shown) and data repositories will be added to the portal record when information is available in FAIRS and brought back to the portal
Data	Publications, theses (not shown) and data repositories will be added to the portal record when information is available in FAIRS and brought back to the portal