MATEC Web Conf.
Volume 165, 201812th International Fatigue Congress (FATIGUE 2018)
|Number of page(s)||6|
|Published online||25 May 2018|
High cycle thermal fatigue of austenitic stainless steel
DEN-Service de Recherches Métallurgiques Appliquées, CEA, Université Paris-Saclay, 91191, Gif sur Yvette, France
2 LMT, ENS Paris-Saclay, CNRS, Université Paris-Saclay, 61 av. du Président Wilson, 94235 Cachan cedex, France
+ now at Lehigh University, Packard Lab, 19 Memorial Drive West, Bethlehem, PA 18015, USA
* Corresponding author: firstname.lastname@example.org
A new experimental setup called FLASH (THErmal Fatigue by LASer or Helium pulses) has been developed to perform thermal fatigue tests on materials used in structures of Sodium-cooled Fast Reactors (SFRs). A set of thermal loadings ranging from 150°C to 200°C prescribed by a high energy laser has been applied to A316L(N) stainless steel samples. Thermal fatigue tests are performed until a macrocrack is formed. The 3D displacement fields of the surface impacted by the laser beam are measured by a hybrid multiview system. A thermomechanical model is used to compute displacement fields that are compared with correlation measurements. These results are compared in terms of strain levels to the fatigue curve determined from standardized isothermal uniaxial mechanical fatigue tests.
© The Authors, published by EDP Sciences, 2018
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (http://creativecommons.org/licenses/by/4.0/).
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