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Nano‐scaled and aggregated films to protect carbon steel from corrosion in hydrochloric acid
Author(s) -
Ma Lan,
He Yi,
Luo Pingya,
Zhang Liyun,
Zhou Yanqiu,
Zhang Lei
Publication year - 2018
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.201810042
Subject(s) - hydrochloric acid , corrosion , carbon steel , nano , materials science , metal , carbon fibers , layer (electronics) , corrosion inhibitor , absorption (acoustics) , chemical engineering , metallurgy , composite material , engineering , composite number
An efficient corrosion inhibitor named BTA‐IM is reported in this contribution. The inhibition performance of BTA‐IM for carbon steel in 1 M HCl is investigated and the possible inhibition mechanism is proposed. According to weight‐loss experiments, the inhibition efficiency of BTA‐IM can reach to 98%. Secondly, the morphology investigation illustrates that the nano‐scaled, dendrimer‐like, and multi‐layer films cover the metal surface regularly and compactly through self‐assembly. Thirdly, the thickness of the films on surface of metal is gradually increased with the increasing dosage of inhibitor, and the aggregated films are obtained. Possibly, the aggregated films are born of absorption films and the increased concentration of BTA‐IM, giving rise to the regular and compact films.