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Strength, plasticity, fracture and fatigue behaviour controlled by interfaces and grain boundaries

It is known that interfaces, grain boundaries, phase boundaries, and surfaces play a crucial role in determining material strength and deformation mechanisms. Recent developments in mechanical testing and high-fidelity modelling techniques have made it possible to correlate interfacial phenomena with mechanical response.


Understanding the mechanics of interface dominated materials is of fundamental importance because it simultaneously allows for the exploration of new properties at the smallest length scales as well as provides a basis for understanding multiscale phenomena that originate at these length scales. This symposium will focus on recent developments in the fields of mechanical testing and modelling behaviour of nano-objects, thin films and bulk nanostructured materials, focusing on the governing mechanisms for improved strength, fracture and fatigue (mechanical and thermal) behaviour as well as advanced characterization methods of interfaces, grain boundaries, and surfaces. Thin film and small volume mechanical behaviour has been explored for many years using several different in-situ and ex-situ techniques (nanoindentation, TEM, SEM, micro-XRD, etc), however, the need for new or improved testing techniques for the coupled measurement of electrical, magnetic, or shape memory properties under stress are also of interest - for example, changes in resistance due to micro-cracking or materials degradation. Furthermore, the enhanced understanding of microstructures that influence fatigue and fracture in thin films and nanostructured materials is of interest. The combination of advanced testing techniques and simulation methods will improve the knowledge related to strength, fatigue and fracture of surfaces, interfaces and grain boundaries dominated materials.

Hot topics to be covered by the symposium:

  • Mechanical and thermal fatigue of thin films and nanostructured materials
  • Influence of microstructure and/or interfaces on fatigue damage development
  • Nano- and microscale characterization of interfaces;
  • Fundamental aspects of dislocation-interface interactions;
  • Role of interfaces in rate dependent deformation and back stress;
  • Influence of interfaces on damage and fracture;
  • Intrinsic and extrinsic size effects on mechanical properties;
  • Advances in ex-situ and in-situ micro/nanomechanical testing;
  • Advances in numerical technical methods;
  • Bridging scales: from small scale mechanics to bulk behavior.

Tentative list of invited speakers:

  • Frederic Sansoz (The University of Vermont, USA)
  • T. Pardoen (UCL, Belgium)
  • David Armstrong (Oxford, U.K.)
  • Cynthia Volkert (Uni. Göttingen, Germany)

Tentative list of scientific committee members:

  • Daniel Kiener (Dept. Material Physics, Montanuni. Leoben)
  • Gerhard Dehm (MPIE, Düsseldorf, Germany)
  • Angus Wilkenson (Oxford, U.K.)
  • Clarissa Yablinsky (LANL, USA)
  • Benoit Devincre (LEM-ONERA, Châtillon, France)

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Symposium organizers
Erik BITZEKFriedrich-Alexander-Universität

Department of Materials Science and Engineering, Institute I, Erlangen-Nürnberg, Martensstr. 5, 91058 Erlangen, Germany

+49 9131 8527507

29 rue Jeanne Marvig, BP 94347, F - 31055 Toulouse Cedex 4

+33 (0)5 62 25 78 00
Megan J. CORDILLErich Schmid Institute for Materials Science, Austrian Academy of Sciences

Jahnstrasse 12, Leoben 8700, Austria

+43 3842 804 102
Sandrine BROCHARDUniversity of Poitiers

Institut Pprime, SP2MI – BP 30179, F86962 Futuroscope Chasseneuil Cedex, France

+33 5 49 49 68 33