Monday, May 12

10:30 AM-12:10 PM
Peale A Room

Diffusional Phase Transformations

Understanding the dynamics of diffusional phase transformations is central to predicting the development of microstructure in materials and their resulting properties. In these systems, the motion of the interfaces are governed by the diffusion of mass with boundary conditions which are a function of the curvature of the interface and, possibly, elastic stress. The speakers will highlight the current developments in this area. They will describe the motion of these interfaces using both the sharp interface and diffuse interface, or phase field, descriptions.

Organizer: Peter W. Voorhees
Northwestern University

10:30-10:50 Numerical Study of Two-Dimensional Late-Stage Coarsening at High Area Fractions
Norio Akaiwa, National Research Institute for Metals, Japan and Daniel I. Meiron, California Institute of Technology
10:55-11:15 On Sharp Interface and Diffuse Interface Approaches for Computing Microstructural Evolution in Elastically Stressed Solids
P. H. Leo, J. S. Lowengrub, and Thomas Little, University of Minnesota, Minneapolis
11:20-11:40 Correspondence Between a Phase-Field Theory and a Sharp-Interface Theory for Diffusional Phase Transitions Under Strain
Eliot Fried, University of Illinois, Urbana-Champaign
11:45-12:05 Coarsening of Second Phase Particles in Applied Stress Fields
Werner Hort and William C. Johnson, University of Virginia

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MMD, 12/9/96