About this Abstract |
Meeting |
2023 TMS Annual Meeting & Exhibition
|
Symposium
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Deformation-induced Microstructural Evolution during Solid Phase Processing: Experimental and Computational Studies
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Presentation Title |
Microstructural and Chemical Evolution of Frictional Contacts |
Author(s) |
Izabela A. Szlufarska |
On-Site Speaker (Planned) |
Izabela A. Szlufarska |
Abstract Scope |
A critical challenge in designing materials with superior tribological properties is the limited understanding of how the contact interface and the microstructures of contacting materials evolve during sliding. This evolution may include grain growth and refinement, evolution of dislocation networks, interaction of dislocations with interfaces, chemical mixing etc. All these phenomena can contribute to energy dissipation (friction) and they can affect the dominant type and amount of wear. In this talk, I will summarize the present understanding of how the microstructure of metallic contacts evolves during sliding and how this evolution can be controlled. I will also discuss how mechano-chemical changes that occur in contacts at the molecular scale, can have a significant impact on friction and adhesion of macroscale contacts, including geological slip in crustal faults. Finally, I will introduce the concept of chemical creep, where interfacial chemical reactions lead to measurable creep in mechanical contacts. |
Proceedings Inclusion? |
Planned: |
Keywords |
Mechanical Properties, Surface Modification and Coatings, |