Zobrazeno 1 - 10
of 147
pro vyhledávání: '"Roland Oltra"'
Autor:
Christine Blanc, Roland Oltra
Publikováno v:
Corrosion. 79:17-34
Environment-assisted crack initiation in aluminum alloys is strongly related to the physical and chemical reactivity of intermetallic particles (IMPs) whatever their location, i.e., at grain boundaries or in the matrix. Therefore, this paper first fo
Publikováno v:
ECS Meeting Abstracts. :748-748
After real environmental exposures, the presence of corrosion damages on aircraft structures may be detected by means of non-destructive techniques (NDT). However, corrosion initiation and mechanism behind the defect cannot be distinguished by curren
Autor:
Roland Oltra, Pascal Tristant, Cédric Jaoul, O. Jarry, Frederic Meunier, Thibault Maerten, Christophe Le Niniven, Patrice Duport
Publikováno v:
C — Journal of Carbon Research
C — Journal of Carbon Research, 2019, 5 (4), pp.73. ⟨10.3390/c5040073⟩
C; Volume 5; Issue 4; Pages: 73
C — Journal of Carbon Research, 2019, 5 (4), pp.73. ⟨10.3390/c5040073⟩
C; Volume 5; Issue 4; Pages: 73
International audience; Defects in diamond-like carbon coatings deposited on corrosion sensitive 100Cr6 steel have been studied. Diamond-like carbon (DLC) thin films are promising for corrosion protection due to chemical inertness and low electrical
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::35b5dba1757018c9e0bf34e36b58a2fd
https://hal-unilim.archives-ouvertes.fr/hal-03276949
https://hal-unilim.archives-ouvertes.fr/hal-03276949
Autor:
Roland Oltra
Publikováno v:
Corrosion Engineering, Science and Technology. 53:2-8
In this paper, the importance of mass transport in localised corrosion process is demonstrated using two examples describing the corrosion behaviour of two types of cut-edge electrodes regarding, (...
Autor:
Roland Oltra, R. Bonzom
Publikováno v:
Journal of The Electrochemical Society. 165:C502-C514
Autor:
R. Bonzom, Roland Oltra
Publikováno v:
Electrochemistry Communications, Vol 81, Iss, Pp 84-87 (2017)
An original method combining a droplet cell with direct optical interrogation of the reverse side of a 50μm thick foil AA2024 has been tested to evaluate the possible analysis of the current during intergranular corrosion tests. The foil microstruct
Autor:
R. Bonzom, Roland Oltra
Publikováno v:
CORROSION. 73:1250-1257
The total porosity induced by the intergranular corrosion was selected as a monitoring parameter to follow in real-time the defect propagation of AA2024. The pertinence of eddy current (EC) probing has been tested on very thin foils of AA2024 (30 μm
Autor:
Laurent Trenty, Didier Crusset, Antoine Marion, Bruno Vuillemin, Maalek Mohamed-Said, Roland Oltra
Publikováno v:
Corrosion Engineering, Science and Technology. 52:178-185
In the frame of conceptual design for the long-term management of high level radioactive waste defined by Andra (France), it is assumed that carbon steel (C-Steel) overpack would be mainly affected...
Publikováno v:
Journal of The Electrochemical Society. 164:E3372-E3385
Publikováno v:
Materials and Corrosion. 68:311-315
There is a need to develop instrumented witness plates which would be possible to expose in natural environments after laboratory validation. In conventional laboratory scale test chambers, the main difficulty remains the access of any kind of sensor