...-mail: [email protected] ; [email protected] . 28 March 2024 16 January 2025 16 January 2025 © 2025, AMPP 2025 aluminum alloy corrosion morphology digital image analysis galvanic corrosion intergranular corrosion localized corrosion statistics metrics A luminum...

...; current distributions and line-profile plots for (c) HE1 and (d) HE2. FIGURE 3. Schematic image of boundary condition for galvanic corrosion simulations at a fin-free zone on the (a) Header side and (b) fin side. FIGURE 1. Photographs of heat exchanger samples in the CCT chamber...

...Eun-Ha Park; Jeong-Min Lim; Geon-Il Kim; Yong-Won Kim; Jung-Gu Kim A new lifespan evaluation method, accelerated galvanic corrosion testing (AGCT), was developed for evaluating the lifespan of aluminum heat exchangers during the materials development stage. AGCT effectively accelerated corrosion...

...Priyanka Adapala; Gerald S. Frankel Carbon-fiber reinforced polymer (CFRPs) composites can drive galvanic corrosion of other metals with which they are in contact such as aluminum alloys (AAs) when exposed to aggressive environments. In these galvanic couples, CFRP behaves as a cathode, owing...

... caused unwanted air voids in ducts, leading to strand/grout/air interface, carbonation of exposed grout layer, and localized corrosion of strands (say, within about 10 y to 20 y). Re-grouting of voids as a tendon repair strategy has led to accelerated galvanic corrosion of the portion of strands...

...-mail: [email protected] . © 2023, AMPP 2023 AA7050-T7451 316SS chromate galvanic corrosion thick electrolyte film wet-dry cycling P recipitation-strengthened Al alloys (AA) such as AA7050-T7451 (UNS A97050 ⁽¹⁾ ) are commonly used in aerospace applications. AA7050-T7451...

... solution, a high-driving force for galvanic corrosion is present. The combination of the dissimilar materials, indicating galvanic corrosion, and complex geometry of the occluded fastener hole, indicating crevice corrosion, leads to the detrimental combined effect of galvanic-induced crevice corrosion...

...Yuichi Watanabe; Sakae Fujita A numerical calculation method was developed for obtaining the corrosion product chemical distribution in galvanic corrosion of a zinc-coated iron substrate under atmospheric conditions. A one-dimensional model, in which the width of the solution was mathematically...

... in light of the galvanic corrosion behavior of aluminum alloy in contact with liquid steel corrosion products. ^‡ Corresponding author. E-mail: [email protected] . 21 01 2022 13 May 2022 13 May 2022 © 2022, AMPP 2022 aluminum alloy 6063...

...Priyanka Adapala; Niamh Hosking; Mark Nichols; G.S. Frankel Structures made from a combination of aluminum alloy (AA) and carbon fiber-reinforced plastic (CFRP) are susceptible to galvanic corrosion of the AA in harsh atmospheric conditions, such as might exist for closure panels in automotive...

... or studied. In this paper, the corrosion behavior of the laser-MIG (metal inert gas) hybrid welding-brazing joints of steel-aluminum is investigated through the tests and analysis of salt spray, immersion, and electrochemistry. The salt spray and immersion tests show that obvious galvanic corrosion occurs...

...Kristen S. Williams; Richard Joel Thompson Galvanic corrosion is a major problem impacting aerospace platform design, retrofit, and maintenance. MIL-STD-889 provides guidance on dissimilar material selection based on the corrosion potential of materials in flowing seawater. This standard provides...

... reaction rates in surviving deep localized corrosion sites are not reduced due to a variety of factors that are discussed. Ramifications toward fatigue initiation are discussed. © 2019, NACE International 2019 aluminum alloy chromate corrosion inhibitor galvanic corrosion inhibitors pitting...

... fasteners galvanic corrosion With many aircraft having been in service for over 20 y and expected to remain in service for another 25 y, corrosion problems present significant challenges to maintenance and upkeep. ¹ Being the largest component of aircraft exposed to the environment...

... 2018 © 2019, NACE International 2019 accelerated corrosion conductivity electrolyte layer thickness finite element method galvanic corrosion geometry Laplace’s equation Connections between dissimilar materials are frequently encountered in aviation and marine structures...

... to represent a 2D representation of a fastener in a plate, the anodic charge for galvanic corrosion currents increased under a static 70 μm thin film of NaCl solution wicking throughout the crevice relative to a flat geometry CMEA under full immersion. Moreover, anodic currents were higher at mouth...

... International 2019 aluminum alloy constituent particles galvanic corrosion localized corrosion Advanced 2XXX aluminum alloys, such as the legacy alloy AA2024 (UNS A92024 ⁽¹⁾ ) and a newer Al-Cu-Li alloy AA2060, provide exceptional mechanical properties such as low density, high...

... strain accumulation with respect to the microstructure. Afterward, this material is subjected to a galvanic corrosion environment. In order to investigate the driving force for localized corrosion, the microstructure, the cathodic particles, the localized strain, and the evolution of surface topology...

...Shan-Shan Wang; J. Boerstler; G.S. Frankel The effects of corrosion preventive compounds (CPCs) on galvanic corrosion of coated Al alloy panels coupled to noble material fasteners were studied using a test specimen consisting of a painted AA7075-T6 panel and uncoated through-hole noble material...

...Dominique Thierry; Charles Leballeur; Nicolas Larché The open-circuit potential is one of the main driving forces of galvanic corrosion when two dissimilar metals are in electrical continuity in an electrolyte. From the existing literature, the galvanic series which provides averaged potential...