Corrosion behaviour of Mg-Zn-Y-Mischmetal alloys in phosphate buffer saline solution

P. Pérez; E. Onofre; S. Cabeza; I. Llorente; J. A. del Valle; M. C. García-Alonso; P. Adeva; M. L. Escudero

doi:10.1016/j.corsci.2012.12.007

Corrosion behaviour of Mg-Zn-Y-Mischmetal alloys in phosphate buffer saline solution

P. Pérez, E. Onofre, S. Cabeza, I. Llorente, J. A. del Valle, M. C. García-Alonso, P. Adeva, M. L. Escudero

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34 Scopus citations

Abstract

The influence of the processing route and chemical composition in the corrosion behaviour of two Mg-Zn-Y-Mischmetal alloys has been evaluated in phosphate buffer saline solution. The corrosion resistance of the alloy processed by conventional techniques was substantially higher than that found for the same alloy processed from atomised powders. Fine homogeneous distribution of the second-phase particles promoted severe attack due to the enhanced number of galvanic microcells. A higher concentration of zinc and a lower content of rare earth additions improved the corrosion resistance of the alloys due to the lower volume fraction of second-phase particles.

Original language	English
Pages (from-to)	226-235
Number of pages	10
Journal	Corrosion Science
Volume	69
DOIs	https://doi.org/10.1016/j.corsci.2012.12.007
State	Published - Apr 2013
Externally published	Yes

Keywords

A. Magnesium
B. Weight loss
C. Anodic dissolution
C. Passive films

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10.1016/j.corsci.2012.12.007

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title = "Corrosion behaviour of Mg-Zn-Y-Mischmetal alloys in phosphate buffer saline solution",

abstract = "The influence of the processing route and chemical composition in the corrosion behaviour of two Mg-Zn-Y-Mischmetal alloys has been evaluated in phosphate buffer saline solution. The corrosion resistance of the alloy processed by conventional techniques was substantially higher than that found for the same alloy processed from atomised powders. Fine homogeneous distribution of the second-phase particles promoted severe attack due to the enhanced number of galvanic microcells. A higher concentration of zinc and a lower content of rare earth additions improved the corrosion resistance of the alloys due to the lower volume fraction of second-phase particles.",

keywords = "A. Magnesium, B. Weight loss, C. Anodic dissolution, C. Passive films",

author = "P. P{\'e}rez and E. Onofre and S. Cabeza and I. Llorente and {del Valle}, {J. A.} and Garc{\'i}a-Alonso, {M. C.} and P. Adeva and Escudero, {M. L.}",

note = "Funding Information: The authors thank the financial support under Project MAT2009-07811 and MAT2008-06719-C03-01. E. Onofre thanks the financial support received from UNAM and CSIC through the Scientific Cooperation Program of UNAM-CSIC, “Simon Bolivar” postdoctoral 2009-2010, DGAPA-UNAM.",

year = "2013",

month = apr,

doi = "10.1016/j.corsci.2012.12.007",

language = "Ingl{\'e}s",

volume = "69",

pages = "226--235",

journal = "Corrosion Science",

issn = "0010-938X",

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TY - JOUR

T1 - Corrosion behaviour of Mg-Zn-Y-Mischmetal alloys in phosphate buffer saline solution

AU - Pérez, P.

AU - Onofre, E.

AU - Cabeza, S.

AU - Llorente, I.

AU - del Valle, J. A.

AU - García-Alonso, M. C.

AU - Adeva, P.

AU - Escudero, M. L.

N1 - Funding Information: The authors thank the financial support under Project MAT2009-07811 and MAT2008-06719-C03-01. E. Onofre thanks the financial support received from UNAM and CSIC through the Scientific Cooperation Program of UNAM-CSIC, “Simon Bolivar” postdoctoral 2009-2010, DGAPA-UNAM.

PY - 2013/4

Y1 - 2013/4

N2 - The influence of the processing route and chemical composition in the corrosion behaviour of two Mg-Zn-Y-Mischmetal alloys has been evaluated in phosphate buffer saline solution. The corrosion resistance of the alloy processed by conventional techniques was substantially higher than that found for the same alloy processed from atomised powders. Fine homogeneous distribution of the second-phase particles promoted severe attack due to the enhanced number of galvanic microcells. A higher concentration of zinc and a lower content of rare earth additions improved the corrosion resistance of the alloys due to the lower volume fraction of second-phase particles.

AB - The influence of the processing route and chemical composition in the corrosion behaviour of two Mg-Zn-Y-Mischmetal alloys has been evaluated in phosphate buffer saline solution. The corrosion resistance of the alloy processed by conventional techniques was substantially higher than that found for the same alloy processed from atomised powders. Fine homogeneous distribution of the second-phase particles promoted severe attack due to the enhanced number of galvanic microcells. A higher concentration of zinc and a lower content of rare earth additions improved the corrosion resistance of the alloys due to the lower volume fraction of second-phase particles.

KW - A. Magnesium

KW - B. Weight loss

KW - C. Anodic dissolution

KW - C. Passive films

UR - http://www.scopus.com/inward/record.url?scp=84873746940&partnerID=8YFLogxK

U2 - 10.1016/j.corsci.2012.12.007

DO - 10.1016/j.corsci.2012.12.007

M3 - Artículo

SN - 0010-938X

VL - 69

SP - 226

EP - 235

JO - Corrosion Science

JF - Corrosion Science

ER -

Corrosion behaviour of Mg-Zn-Y-Mischmetal alloys in phosphate buffer saline solution

Abstract

Keywords

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