Hydrogen Embrittlement in Coating Technology - Measurement & Testing

  • Pre-treatment and electroplating of especially low alloyed high tensile strength steel components (such as those used in the aircraft industry) can be followed by a delayed hydrogen-induced fracture known as hydrogen embrittlement. As estimated by the fracture behavior, atomic hydrogen being evolved during the coating process and penetrating into the base metals is mainly trapped close to the interface base metal-coating. During a baking procedure after plating the atomic hydrogen can be removed from the traps and effuse through the coating as well as being more homogeneously distributed in the bulk of the base metal, both reducing the risk of embrittlement. Up to now there has been no analytical proof. Now investigations using GD-OES show that the hydrogen distribution in the coating, at the interface and within the bulk material, can be directly measured. The results give an improved knowledge and enable to work out process parameters and test procedures for coating techniques to bePre-treatment and electroplating of especially low alloyed high tensile strength steel components (such as those used in the aircraft industry) can be followed by a delayed hydrogen-induced fracture known as hydrogen embrittlement. As estimated by the fracture behavior, atomic hydrogen being evolved during the coating process and penetrating into the base metals is mainly trapped close to the interface base metal-coating. During a baking procedure after plating the atomic hydrogen can be removed from the traps and effuse through the coating as well as being more homogeneously distributed in the bulk of the base metal, both reducing the risk of embrittlement. Up to now there has been no analytical proof. Now investigations using GD-OES show that the hydrogen distribution in the coating, at the interface and within the bulk material, can be directly measured. The results give an improved knowledge and enable to work out process parameters and test procedures for coating techniques to be more effective to avoid hydrogen embrittlement.zeige mehrzeige weniger

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Metadaten
Autor*innen:Wolfgang Paatsch, Vasile-Dan HodoroabaORCiD
Dokumenttyp:Zeitschriftenartikel
Veröffentlichungsform:Verlagsliteratur
Sprache:Englisch
Titel des übergeordneten Werkes (Englisch):Plating and surface finishing
Jahr der Erstveröffentlichung:2002
Verlag:American Electroplaters' Society
Verlagsort:East Orange, NJ
Jahrgang/Band:89
Ausgabe/Heft:10
Erste Seite:57
Letzte Seite:60
ISSN:0360-3164
Verfügbarkeit des Dokuments:Physisches Exemplar in der Bibliothek der BAM vorhanden ("Hardcopy Access")
Bibliotheksstandort:Sonderstandort: Publica-Schrank
Bibliotheksstandort:ZP 12
Datum der Freischaltung:19.02.2016
Referierte Publikation:Nein
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