Journal Article

PUBDB-2026-00867

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Leaching in active protective coatings observed in-situ by nano-CT using synchrotron radiation

Zaninovic, J.Extern* ; Nogatz, T. ; Schladitz, K. (Corresponding author)Extern* ; Flenner, S. ; Greving, I.HZG*Hereon* ; Klein, P. ; Konchakova, N.Extern* ; Redenbach, C. ; Visser, P.

2026
Elsevier Science Amsterdam [u.a.]

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Please use a persistent id in citations: doi:10.1016/j.corsci.2026.113631  doi:10.3204/PUBDB-2026-00867

Abstract: Active protective coatings have been used and studied for decades. It is well known that the coating composition and microstructure determine the leaching behavior of the corrosion inhibiting species from the coating matrix. However, the leaching process on the microscale is a complex phenomenon important details of which remain obscured till today. Non-destructive spatial observation of the leaching process by nano-computed tomography using synchrotron radiation can contribute to a deeper understanding. Here, we report on the first truly in-situ 3D observation of microscale leaching. 3D images were generated while individual inhibitor particles dissolve from the coating matrix due to exposure to flowing water. The development and growth of pores and pore clusters was observed with a sequence of 3D images as a function of time demonstrating that leaching progresses by successive dissolution of inter-connected soluble particles.

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Contributing Institute(s):

1. DOOR-User (DOOR ; HAS-User)
2. Helmholtz-Zentrum Hereon (Hereon)

Research Program(s):

1. 6G3 - PETRA III (DESY) (POF4-6G3) (POF4-6G3)
2. VIPCOAT - Virtual Open Innovation Platform for Active Protective Coatings Guided by Modelling and Optimization (952903) (952903)

Experiment(s):

1. PETRA Beamline P05 (PETRA III)

Appears in the scientific report 2026

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Database coverage:
; ; ; Clarivate Analytics Master Journal List ; Current Contents - Engineering, Computing and Technology ; Ebsco Academic Search ; Essential Science Indicators ; IF >= 5 ; JCR ; SCOPUS ; Science Citation Index Expanded ; Web of Science Core Collection

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