Symposium SF07-Emerging Approaches for Probing Martensitic Transformation Dynamics

Martensitic transformations enable a multitude of novel applications, which range from high stroke/high force actuation, (multi-) ferroic refrigeration, to thermo-magnetic and -elastic energy harvesting. All these applications work in a certain time scale and require understanding how the martensitic transformation proceeds in that time. Driving transformations faster increases cycle frequency and accordingly power density of applications, but the intrinsic speed limits are not known yet. Driving these transformations slower results in critical behavior like avalanches and athermal transformations, which hampers device control. On even longer time scales, degradation and fatigue of these functional materials decrease the lifetime of a device. To understand the factor of time in martensitic transformations, this symposium unites experiments and theory. From the experimental side, time dependent phenomena can now be probed by methods with high time resolution, which allow capturing transformations in-operando. From the theoretical side, the exponential increase of computing power now allows covering the scales relevant for applications. Thus, this symposium bridges all time scales for a comprehensive understanding of dynamics of martensite. To accelerate the dynamic development of this emerging class of functional materials, we bring together researchers from materials science - who probe transformations and develop new materials, physics - who model time dependent transformations, and engineering - who apply these materials on different time scales. This symposium will thus elucidate the rich impact of time on martensitic transformations today, and fast applications of these functional materials tomorrow.

Topics will include:

Martensitic phase transformations at short and long time scales by experimental and theoretical approaches
Correlation of time and length scales by in-situ measurements of martensitic structure and microstructure
Microstructural origin of athermal and isothermal transformations
Criticality and avalanches during martensitic transformations
Advanced characterization methods with high spatiotemporal resolution, e. g. at synchrotron and free electron laser facilities, and THz spectroscopy
Theoretical and numerical modeling of martensitic dynamics, including scale bridging approaches, large-scale simulation, and AI methods
Novel manufacturing routes for long lifetime and low functional fatigue, including 3D printing and advanced deposition techniques
Dynamics of irreversible martensitic transformations
Coupled multiferroic dynamics during ferroelastic transformations
Increasing power density of microsystems by high cycle frequencies
Towards materials bridging understanding of dynamics of diffusionless structural transformations, including emerging materials like high entropy shape memory alloys, elastocaloric and ferroelectric materials

Invited Speakers:

Ashley Bucsek (University of Michigan, USA)
Beke Dezso (University of Debrecen, Hungary)
Till Domröse (Max Planck Institute for Multidisciplinary Sciences, Germany)
Paul G. Evans (University of Wisconsin-Madison, USA)
Tino Gottschall (Helmholtz-Zentrum Dresden-Rossendorf, Germany)
Thomas Niendorf (Universität Kassel, Institut für Werkstofftechnik/Metallische Werkstoffe, Germany)
Ruben Santamarta (Universitat de les Illes Balears, Spain)
Avadh B. Saxena (Los Alamos National Laboratory, USA)
Daniel Schmidt (Leibniz Institute for Crystal Growth, Germany)
Christhoper A. Schuh (Northwestern University, USA)
Hussein Sehitoglu (University of Illinois, USA)
Hanuš Seiner (Czech Academy of Sciences, Czech Republic)
Patrick Shamberger (Texas A&M University, USA)
Doron Shilo (Technion–Israel Institute of Technology, Israel)