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MSE 555 Deformation Mechanisms in Crystalline Solids

Sem. 1. Class 3, cr. 3. (offered in alternate years). Prerequisite: senior or graduate standing in engineering or science.

MSE 555 is an elective course.

Weekly Schedule: Three 50-minute lectures.

Focuses on the mechanisms for deformation and fracture of metal, intermetallic, and ceramic materials, with particular emphasis on high temperature properties. The industrial success of superalloys, dispersion-strengthened alloys, stainless steels, composites, and thermal barrier coatings will serve as the basis for exploring the relationship between composition, microstructure, and component application in high temperature performance. Topics included are alloying effects on dislocation climb and glide, grain boundary and lattice diffusion, and dynamic recrystallization. The interactions between environment and thermal and mechanical cycling also will be considered. Design tools for prediction and evaluation of component life will be investigated in detail, including an exploration of deformation mechanism maps. Offered in alternate years.

Relation of Course to Program Outcomes

1. an ability to apply knowledge of mathematics, science, and engineering to problems in materials engineering.
5. an ability to identify, formulate, and solve engineering problems, particularly in the context of materials selection and design.
7. an ability to exhibit effective oral and written communication skills.

Goals
To provide an in-depth understanding of the leading theories for deformation mechanisms.
To develop facility with design considerations between constitutive models and deformation mechanisms.

Course Objectives

  • Understanding of dislocation plasticity: nucleation, motion, multiplication and interactions of dislocations.
  • Understanding of diffusion-based creep and stress relaxation: time dependent dislocation motion, dislocation climb, Nabarro-Herring Creep, Coble Creep, Harper-Dorn Creep.
  • Recognition of mapping strategies for design using deformation mechanism maps.
  • Ability to describe effects of processing and microstructure on deformation mechanisms.

Reference
"Deformation & Fracture Mechanics of Engineering", 4th ed., R. W. Hertzberg (Wiley & Sons 1996).

Instructor(s)
David Johnson

Contribution of course to meeting the professional component: MSE 555 is a materials-specific technical elective course.

Prepared by: Elliott Slamovich                                                            Date: April 25th, 2007