Susceptibility of rare-earth-magnesium alloys to micro-galvanic corrosion

Autor:	A.E. Coy, George Thompson, Fernando Viejo, Peter Skeldon
Rok vydání:	2010
Předmět:	Kelvin probe force microscope Atomic force microscopy Chemistry Magnesium General Chemical Engineering Rare earth Metallurgy chemistry.chemical_element General Chemistry Corrosion Galvanic corrosion Microscopy Galvanic cell General Materials Science
Zdroj:	Corrosion Science. 52:3896-3906
ISSN:	0010-938X
DOI:	10.1016/j.corsci.2010.08.006
Popis:	Four commercially produced rare-earth-magnesium alloys, as-cast ZE41, sand-cast WE43-T6, and wrought WE43-T6 and WE54-T6, were studied by scanning Kelvin probe force microscopy (SKPFM) in order to evaluate the role of their micro-constituent phases on potential galvanic interactions. Such interactions were then examined by immersion of the alloys in 3.5 wt% NaCl solution. The results confirmed that SKPFM was a powerful tool to determine the corrosion mechanism of magnesium alloys, where the intensity of the corrosion attack depended on the relative Volta potential differences of the micro-constituents, as well as their amounts, compositions and distributions within the alloys.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::210f47236012160634fe58d27cac0e7d https://doi.org/10.1016/j.corsci.2010.08.006 Zobrazit plný text záznamu Full Text from ScienceDirect