The deep sea corrosion of ferrous alloys that undergo uniform corrosion without forming a passive layer is related to the amount of dissolved oxygen available in the sea water. The performance of some ferrous alloys at depths of 500, 1200, 3500, and 5100 m in the Indian Ocean has been studied. The results of atomic absorption spectroscopy have revealed that the corrosion product present on mild steel coupons is FeOOH. The results of experiments in shallow water have shown that micro- and macrobiological growths play a significant role in the corrosion of ferrous materials. However, in deeper waters, the absence of macrofouling was evident, and corrosion was not related to any biological product but mainly to the electrochemical reaction of these alloys with sea water. The results of morphological studies by SEM on the surfaces of exposed specimens are also presented.
Corrosion of ferrous alloys in deep sea environments
Korrosion von Eisenlegierungen in der Tiefsee
British Corrosion Journal ; 37 , 4 ; 257-266
2002
10 Seiten, 16 Bilder, 2 Tabellen, 30 Quellen
Article (Journal)
English
Korrosionsgeschwindigkeit , Streckbarkeit , unlegierter Stahl , niedriglegierter Stahl , hochlegierter Stahl , Tiefsee , Seewasser (Ozean) , Korrosionspotenzial , Korrosionsprodukt , pH-Wert , Mikroorganismus , Sauerstoff , Oberflächenmorphologie , potentiostatische Prüfung , Gewichtsverlust , Rasterelektronenmikroskopie , Atomabsorptionsspektrometrie , legiertes Gusseisen , martensitaushärtbarer Stahl , Nickel-Cobalt-Molybdän-Stahl
Advanced Heat Treatments for Ferrous Alloys
SAE Technical Papers | 2013
|Machinability Studies with Sintered Ferrous Alloys
SAE Technical Papers | 1981
|Machinability studies with sintered ferrous alloys
Automotive engineering | 1981
|CONTINUOUS-WAVE RADAR SYSTEM FOR DETECTING FERROUS AND NON-FERROUS METALS IN SALTWATER ENVIRONMENTS
European Patent Office | 2022
|Continuous-wave radar system for detecting ferrous and non-ferrous metals in saltwater environments
European Patent Office | 2024
|