IMI Interdisciplinary Mathematics InstituteCollege of Arts and Sciences

Integrated Microstructural Modeling for Conventional Solidification Processes and Its Pathway to Additive Manufacturing

  • Nov. 8, 2019
  • 3:30 p.m.
  • LeConte 317R

Abstract

Computational modeling and simulation have played an increasing role in accelerating both materials and process development. New alloys and ever more intricate designs are being introduced to both aero engines and industrial gas turbines to push the limits of efficiency. With increasingly complex manufacturing processes, controlling microstructure and eliminating defects are the key requirements to achieve the desired mechanical and functional properties. In this talk, I will introduce an integrated microstructural modeling tool that was developed to predict microstructures as a function of alloying composition and processing conditions. Governing equations of heat transfer, fluid dynamics, thermodynamics and solidification are solved iteratively. Two cases studies on the formation of a channel-like defect, freckle, in single crystal turbine blades and Additive Manufacturing will be presented to reveal the scientific insights and impacts to industrial applications. Potential research based on current capabilities and the significant computational challenges will be discussed, providing an outlook on the future development for advanced solidification processes, in particular, Additive Manufacturing.

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