The inhibition of hydrogen embrittlement in SAE 4340 steel in an aqueous environment with the rare earth compound lanthanum 4 hydroxy cinnamate
Data(s) |
01/01/2012
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Resumo |
A preliminary study showed that the inhibitor lanthanum 4-hydroxy cinnamate ((La4OHcin)<sub>3</sub>) at a concentration of 400 ppm prevented the hydrogen embrittlement (HE) of SAE 4340 steel tensile specimens when tested under slow strain rate conditions in a 0.01M NaCl. In the presence of the inhibitor, a complex film formed on the surface of specimens during the slow strain rate test (SSRT), and no corrosion pits were detected. Electrochemical polarization studies indicated that the La(4OHcin)<sub>3</sub> acted as an anodic inhibitor in the NaCl solution. This article also discusses the mechanism of HE inhibition by La(4OHcin)<sub>3</sub>. |
Identificador | |
Idioma(s) |
eng |
Publicador |
Springer New York LLC |
Relação |
http://dro.deakin.edu.au/eserv/DU:30047079/hinton-inhibitionofhydrogen-2012.pdf http://dx.doi.org/10.1007/s11661-012-1103-y |
Direitos |
2012, The Minerals, Metals & Materials Society and ASM International |
Palavras-Chave | #stress-corrosion cracking #strain |
Tipo |
Journal Article |