Optimization of microstructure development: Application to hot metal extrusion

James C. Malas, Anil Chaudhary, W. M. Mullins, Enrique A. Medina, S. Venugopal, Steven Medeiros, R. Dennis Irwin, W. Garth Frazier, Raghavan Srinivasan

Research output: Contribution to conferencePaperpeer-review

Abstract

A new process design method for controlling microstructure development during hot metal deformation processes is presented. This approach is based on modern control theory and involves state-space type models for describing the material behavior and the mechanics of the process. The challenge of effectively controlling the values and distribution of important microstructural features can now be systematically formulated and solved in terms of an optimal control problem. This method has been applied to the optimization of grain size and certain process parameters such as die geometry profile and ram velocity during extrusion of plain carbon steel. Various case studies are investigated and experimental results show good agreement with those predicted in the design stage.
Original languageEnglish
Pages123-133
Number of pages11
StatePublished - 1996
EventProceedings of the 1996 3rd Biennial Joint Conference on Engineering Systems Design and Analysis, ESDA. Part 7 (of 9) - Montpellier, Fr
Duration: Jul 1 1996Jul 4 1996

Conference

ConferenceProceedings of the 1996 3rd Biennial Joint Conference on Engineering Systems Design and Analysis, ESDA. Part 7 (of 9)
CityMontpellier, Fr
Period7/1/967/4/96

ASJC Scopus Subject Areas

  • Geology
  • Geotechnical Engineering and Engineering Geology

Disciplines

  • Engineering Science and Materials

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