Corrosion behaviour in salt spray and in 3.5% NaCl solution saturated with Mg(OH)(2) of as-cast and solution heat-treated binary Mg-RE alloys: RE = Ce, La, Nd, Y, Gd

Shi, Zhiming, Cao, Fuyong, Song, Guang-Ling, Liu, Ming and Atrens, Andrej (2013) Corrosion behaviour in salt spray and in 3.5% NaCl solution saturated with Mg(OH)(2) of as-cast and solution heat-treated binary Mg-RE alloys: RE = Ce, La, Nd, Y, Gd. Corrosion Science, 76 98-118. doi:10.1016/j.corsci.2013.06.032


Author Shi, Zhiming
Cao, Fuyong
Song, Guang-Ling
Liu, Ming
Atrens, Andrej
Title Corrosion behaviour in salt spray and in 3.5% NaCl solution saturated with Mg(OH)(2) of as-cast and solution heat-treated binary Mg-RE alloys: RE = Ce, La, Nd, Y, Gd
Journal name Corrosion Science   Check publisher's open access policy
ISSN 0010-938X
1879-0496
Publication date 2013-11-01
Year available 2013
Sub-type Article (original research)
DOI 10.1016/j.corsci.2013.06.032
Volume 76
Start page 98
End page 118
Total pages 21
Place of publication Kidlington, Oxford, United Kingdom
Publisher Pergamon
Collection year 2014
Language eng
Formatted abstract
Corrosion behaviour was characterised in salt spray and in 3.5% NaCl solution saturated with Mg(OH)2 of as-cast and solution heat-treated binary Mg-RE alloys. The corrosion rate in the immersion test for the solution heat-treated Mg-RE alloys was substantial, and was greater than that of high-purity Mg. These corrosion rates were probably caused by the particles in the microstructure and/or by Fe rich particles precipitated during the solution heat-treatment. The corrosion rate in the immersion tests for each as-cast Mg-RE alloy was greater than that of high-purity Mg, attributed to micro-galvanic acceleration caused by the second phase. Corrosion rates in salt spray had a general correlation with corrosion rates in the immersion tests, but there were differences. The values of apparent valence were always less than 2 consistent with Mg corrosion being only partly under electrochemical control
Keyword Magnesium
Rare earth elements
Weight loss
Stainless Steels
Magnesium Alloys
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: School of Mechanical & Mining Engineering Publications
Official 2014 Collection
 
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