The effect of elastic stress on Ostwald Ripening Phenomena. Final report, August 1, 1990--July 31, 1993
Technical Report
·
OSTI ID:10193669
- Univ. of Virginia, Charlottesville, VA (United States). Dept. of Materials Science and Engineering
The purpose of this research program is to understand the influence of elastic misfit strain and applied stress on the development of microstructure in two-phase coherent alloys. The long-term goal of this research is to identify those material parameters that promote microstructural stability in multiphase systems at elevated temperatures. The authors efforts have been focussed on two fronts. First, they have developed a methodology and the corresponding code to simulate the three-dimensional coarsening behavior of elastically and diffusionally interacting spherical particles in an infinite matrix. Secondly, they have completed a set of experiments using model ternary Ni-Al-Mo alloys that were designed to provide quantitative data on symmetry-conserving and symmetry-breaking precipitate shape transitions and particle coarsening kinetics for a critical check on the theory and computer simulations.
- Research Organization:
- Carnegie-Mellon Univ., Pittsburgh, PA (United States)
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- DOE Contract Number:
- FG02-84ER45166
- OSTI ID:
- 10193669
- Report Number(s):
- DOE/ER/45166--6; ON: DE95002599
- Country of Publication:
- United States
- Language:
- English
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