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DEGRADATION ANALYSIS OF FIBER-METAL LAMINATES UNDER SERVICE CONDITIONS TO PREDICT THEIR DURABILITY

Viandier, Aurélie and Stefaniak, Daniel and Schröder, D. and Krewer, U. and Hühne, Christian and Sinapius, Michael (2015) DEGRADATION ANALYSIS OF FIBER-METAL LAMINATES UNDER SERVICE CONDITIONS TO PREDICT THEIR DURABILITY. ICSAAM 2015 - the 6th International Conference on Structural Analysis of Advanced Materials, September 8-11, 2015, Porto, Portugal.

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Abstract

A Fibre-Metal Laminate (FML) is an advanced material expected to possess higher mechanical properties than its sole constituents. Yet, only few studies focus on their durability. Thus, the aim of this study is to analyse the corrosion behaviour of FMLs based on carbon fibre composite (CFRP) and stainless steel in a sodium chloride solution. To fulfil this purpose, potentiodynamic polarisation and electrochemical impedance spectroscopy were utilized. It has been observed that, as an FML, the carbon composite and the stainless steel would effectively form an electrochemical cell, where the composite acts as a cathode and the stainless steel as an anode. Moreover, this galvanic corrosion is accompanied by pitting corrosion of the stainless steel electrode. Also the impedance data recorded has shown that EIS is the most suitable method for quantifying the polarisation resistance, whereas the polarisation technique is appropriate to measure both the mixed current density and the mixed potential of a CFRP/stainless-steel-hybrid laminate. Accordingly, carrying out potentiodynamic polarisation and EIS is a powerful approach to predict the galvanic corrosion behaviour of FMLs under service conditions.

Item URL in elib:https://elib.dlr.de/102128/
Document Type:Conference or Workshop Item (Speech)
Title:DEGRADATION ANALYSIS OF FIBER-METAL LAMINATES UNDER SERVICE CONDITIONS TO PREDICT THEIR DURABILITY
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Viandier, Aurélieaurelie.viandier (at) dlr.deUNSPECIFIED
Stefaniak, Danieldaniel.stefaniak (at) dlr.deUNSPECIFIED
Schröder, D.TU BraunschweigUNSPECIFIED
Krewer, U.TU BraunschweigUNSPECIFIED
Hühne, Christianchristian.huehne (at) dlr.deUNSPECIFIED
Sinapius, MichaelTU Braunschweig / DLR BraunschweigUNSPECIFIED
Date:September 2015
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Status:Published
Keywords:Fiber-Metal-Laminates, Degradation, Corrosion
Event Title:ICSAAM 2015 - the 6th International Conference on Structural Analysis of Advanced Materials
Event Location:Porto, Portugal
Event Type:international Conference
Event Dates:September 8-11, 2015
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:fixed-wing aircraft
DLR - Research area:Aeronautics
DLR - Program:L AR - Aircraft Research
DLR - Research theme (Project):L - Structures and Materials
Location: Braunschweig
Institutes and Institutions:Institute of Composite Structures and Adaptive Systems > Functional Lightweight Structures
Deposited By: Stefaniak, Daniel
Deposited On:14 Jan 2016 12:17
Last Modified:26 Sep 2017 12:13

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