Radiation-induced cavities in aluminium alloy imaged by in line electron holography. Issue 24 (22nd August 2016)

• Record Type: Journal Article
• Authors: Ribis, Joel; Donnadieu, Patricia; Flament, Camille; Garnier, Jérôme; Lepretre, Frédéric; Serruys, Yves; Deschamps, Alexis
• Is Part Of: Philosophical magazine. Volume 96:Issue 24(2016)
• Page Start: 2504
• Page End: 2517
• Publication Date: 2016-08-22
• Subjects: Electron holography -- aluminium alloy -- cavities -- ion irradiation; Condensed matter -- Periodicals; Physics -- Periodicals; Matière condensée -- Périodiques; Physique -- Périodiques; 530.41
• DOI: 10.1080/14786435.2016.1205230
• Languages: English
• ISSNs: 1478-6435

Abstract

Abstract: In irradiated material, cavities result from the condensation of vacancies induced by collision cascades. The study of their formation is a relevant topic since a high density of cavities may alter significantly the material performance. In this work, a simplified version of in line holography was successfully applied for imaging cavities in ion-irradiated 6061 aluminium alloy. In transmission electron microscopy, the incoming electrons experience a phase shift owing to the potential variation induced by the cavities. The retrieval of this phase shift provides a convenient map to observe and highlight the cavities. Information on density of cavities can be easily obtained. In addition, interstitial clusters may also be detected.