Affiliations: Istituto di Scienze Fisiche, University of Ancona, Ancona, Italy | INFM. University of Reims, Research Unit of Ancona, Ancona, Italy | Laboratoire Léon Brillouin, CEA-CEN Saclay France | ESRF, Grenoble, France | Laboratoire d’Analyse des Contraintes Mécaniques, Champagne Ardenne, Reims, France
Note: [] Corresponding author. Instituto du Scienze Fisiche. University of Ancona Via Ranieri, 65. 60131 Ancona, Italy. Tel: +39 071 220 4607. Fax: +39 071 220 4605. E-mail: F.Turquier@alisfl.unian.it
Abstract: The present paper describes a study that attempts to develop the use of thermal barrier coatings for industrial foundry applications. A wide range of tool steel specimens coated with plasma-sprayed, thermal barrier ceramics having different compositions were tested in thermal fatigue by repeated immersion in liquid aluminium. Then, residual stress measurements performed by neutron diffraction on specimens coated with the ceramic that exhibited the longest thermal fatigue life showed the evolution of the residual stress profiles in the near-interface layers of the substrate. Synchrotron radiation measurements were attempted in the coating and in the vicinity of the interface.
