Open AccessPerformance of Propargyl Alcohol as Corrosion Inhibitor for Electroless Nickel-Phosphorus (NiP) Coating in Hydrochloric Acid Solution
Author(s) -
Fernando B. Mainier,
Thiago Theobaldo da Silva,
Fabio P. D. de Araujo
Publication year - 2021
Publication title -
journal of new materials for electrochemical systems
Language(s) - English
Resource type - Journals
eISSN - 1480-2430
pISSN - 1480-2422
DOI - 10.14447/jnmes.v24i1.a05
Subject(s) - propargyl alcohol , hydrochloric acid , corrosion , nip , corrosion inhibitor , metallurgy , dissolution , materials science , alcohol , coating , nuclear chemistry , chemistry , catalysis , organic chemistry , composite material
The electroless nickel-phosphorus (NiP) coatings have been used with great success in oil production equipment and accessories, such as pipes, valves, pumps, adapters, rings, connectors and various types of special tools. In the acidification or acid stimulation of oil wells, to increase their productivity, a hydrochloric acid (HCl) solution is preferably injected from concentrations of 5 to 28%, aiming at the dissolution of a reservoir rock constituted of limestone and dolomite. In addition, the HCl solutions are also used to remove lime scale adhering to carbon steel pipes, where propargyl alcohol as a corrosion inhibitor, has shown good anticorrosion protection. The aim of this work is centred on the laboratory evaluation of NiP coating in 5% and 10 % HCl solution, and addition of propargyl alcohol as a corrosion inhibitor. The mass loss and polarisation curves proved to be very promising with propargyl alcohol as a corrosion inhibitor.