ProgramMaster Logo
Conference Tools for 2021 TMS Annual Meeting & Exhibition
Register as a New User
Submit An Abstract
Propose A Symposium
Presenter/Author Tools
Organizer/Editor Tools
About this Symposium
Meeting 2021 TMS Annual Meeting & Exhibition
Symposium Phonons, Electrons and Dislons: Exploring the Relationships Between Plastic Deformation and Heat
Sponsorship TMS Materials Processing and Manufacturing Division
TMS: Shaping and Forming Committee
Organizer(s) Aashish Rohatgi, Pacific Northwest National Laboratory
Sean R. Agnew, University of Virginia
Thomas R. Bieler, Michigan State University
Scope While the simple fact that plastic deformation efficiently converts mechanical energy (work) into heat is well known, many questions regarding this (and related) phenomenon are still unanswered or are not universally accepted. For example, what factors (composition, microstructure, etc.) determine the fraction of work which is converted into heat, what are the mechanisms of converting deformation to heat, and what is the role of “phonon radiation” of dislocations as they move at high velocities? Numerous research topics are affected since these heating effects can lead to helpful or harmful plastic instabilities during high-strain-rate deformation (Hopkinson bar tests, plate-impact tests, shock-deformation), shear-banding, friction stir welding/processing, machining, ball milling, etc. The topic of heat generation is typically addressed by using thermocouples or infra-red cameras to record the temperature rise associated with a corresponding plastic strain, but usually, there is less clarity or discussion around the mechanisms of heat generation. In conditions where visual or contact access is not possible, indirect methods to infer heating history or simulations are required, which includes assessment of degrees of dynamic recovery or recrystallization as an indicator of local heating history. On the flip-side, it is becoming increasingly clear that the mere presence of dislocations in the lattice can be used to engineer the thermal and electrical transport of materials relevant to applications as diverse as thermoelectrics, optoelectronics, topological insulators, and superconductors. An emergent theoretical construct known as a “dislon” has recently been introduced, which promises to explain such diverse manifestations of the interactions between phonons, electrons and dislocations. Therefore, this symposium aims to provide a forum for reporting experimental, computational, and theoretical methods to understand both, heat generation and heat transfer in materials, through the interactions between phonons, electrons and dislons. Research exploring the fundamental physics, in association with experimental validation, is also encouraged.
Abstracts Due 07/15/2020
Proceedings Plan Undecided
. . . you are welcome to do so. Just click on the button. Note: To submit an abstract, you must be registered and logged into the system.

Questions about ProgramMaster? Contact