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Towards understandi...
Towards understanding micro-galvanic activities in localised corrosion of AA2099 aluminium alloy
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- Liew, YanHan (författare)
- National University of Singapore,Singapore; Singapore Institute of Manufacturing Technology, Singapore,Natl Univ Singapore, NUS Grad Sch, Integrat Sci & Engn Programme, Singapore 119077, Singapore.;ASTAR, Reliabil & Characterisat Unit, Singapore Inst Mfg Technol SIMTech, Singapore 138634, Singapore.;Natl Univ Singapore, Dept Mat Sci & Engn, Singapore 117575, Singapore.
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- Örnek, Cem (författare)
- Istanbul Technical University, Turkey,Istanbul Tech Univ, Dept Met & Mat Engn, TR-34469 Istanbul, Turkey.
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- Pan, Jinshan, 1962- (författare)
- KTH,Yt- och korrosionsvetenskap,KTH Royal Institute of Technology, Sweden
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- Thierry, Dominique (författare)
- RISE,Korrosion,Institut de la Corrosion,French Corros Inst, F-29200 Brest, France.
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- Wijesinghe, Sudesh (författare)
- National University of Singapore,Singapore; Singapore Institute of Manufacturing Technology, Singapore,ASTAR, Reliabil & Characterisat Unit, Singapore Inst Mfg Technol SIMTech, Singapore 138634, Singapore.;Natl Univ Singapore, Dept Mat Sci & Engn, Singapore 117575, Singapore.
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- Blackwood, Daniel (författare)
- National University of Singapore,Singapore,Natl Univ Singapore, Dept Mat Sci & Engn, Singapore 117575, Singapore.
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National University of Singapore,Singapore; Singapore Institute of Manufacturing Technology, Singapore Natl Univ Singapore, NUS Grad Sch, Integrat Sci & Engn Programme, Singapore 119077, Singapore;ASTAR, Reliabil & Characterisat Unit, Singapore Inst Mfg Technol SIMTech, Singapore 138634, Singapore.;Natl Univ Singapore, Dept Mat Sci & Engn, Singapore 117575, Singapore. (creator_code:org_t)
- Elsevier Ltd, 2021
- 2021
- Engelska.
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Ingår i: Electrochimica Acta. - : Elsevier Ltd. - 0013-4686 .- 1873-3859. ; 392
- Relaterad länk:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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https://urn.kb.se/re...
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Abstract
Ämnesord
Stäng
- The micro-galvanic interactions between Cu-Fe-Mn-Li-containing aluminides and the alloy matrix of aluminium alloy AA2099 during chloride-induced corrosion were investigated in-situ with real-time monitoring of the local contact potential difference (VCPD) using the scanning Kelvin probe force microscopy (SKPFM) at controlled relative humidities. The aluminides showed noble potentials and were able to ennoble their neighbouring matrix sites when a cluster of aluminides surrounded the matrix. The matrix, hence, adopted a more positive VCPD, towards that of the aluminides. The anode-to-cathode ratio changed throughout the corrosion exposure and was seen to show a dynamic character. Much higher local VCPD activities were recorded during the earliest stages of corrosion, when the Al-Li AA2099 surface was first exposed to high humidities, than in later RH cycles; a phenomenon not seen in other aluminium alloys.
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Materialteknik -- Metallurgi och metalliska material (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Materials Engineering -- Metallurgy and Metallic Materials (hsv//eng)
Nyckelord
- AA2099
- Atmospheric corrosion
- Localised corrosion
- Relative humidity
- SKPFM
- Aluminum alloys
- Aluminum corrosion
- Atmospheric humidity
- Binary alloys
- Chlorine compounds
- Copper alloys
- Copper corrosion
- Electrodes
- Galvanic corrosion
- Iron alloys
- Lithium alloys
- Metallic matrix composites
- Alloy matrix
- Aluminides
- Chloride induced corrosion
- Galvanic interaction
- Li$++$
- Localized corrosion
- matrix
- Real time monitoring
- Scanning Kelvin probe force microscopy
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- art (ämneskategori)
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