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The acid corrosion of Fe‐P alloys
Author(s) -
Bala Henryk
Publication year - 1987
Publication title -
materials and corrosion
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.487
H-Index - 55
eISSN - 1521-4176
pISSN - 0947-5117
DOI - 10.1002/maco.19870380105
Subject(s) - corrosion , cathodic protection , materials science , metallurgy , phosphine , electrode , electrochemistry , inorganic chemistry , chemistry , catalysis , organic chemistry
The effect of the P‐content in iron (0.002‐0.12% P) and the stirring rate on the corrosion rate of five Fe‐P alloys in H 2 SO 4 and HCl solutions (pH = 0) has been investigated. It was assumed that phosphine generated during corrosion process acts as a stimulator of the cathodic process (at low concentrations) or as an inhibitor of both partial electrode processes (at high concentrations). A mechanism of the corrosion of Fe‐P alloys, including the transfer of phosphine from the surface into the bulk of the solution by stirring has been discussed.

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