A study of the corrosion behaviour of Zr50Cu(40-X)Al10PdX bulk metallic glasses with scanning Auger microanalysis

B. A. Green; H. M. Meyer; R. S. Benson; Y. Yokoyama; P. K. Liaw; C. T. Liu

doi:10.1016/j.corsci.2008.03.011

A study of the corrosion behaviour of Zr₅₀Cu_(40-X)Al₁₀Pd_X bulk metallic glasses with scanning Auger microanalysis

B. A. Green, H. M. Meyer, R. S. Benson, Y. Yokoyama, P. K. Liaw, C. T. Liu

Surface Chemistry & Catalysis Group

Research output: Contribution to journal › Article › peer-review

52 Scopus citations

Abstract

The anodic-polarization behaviours of Zr₅₀Cu₄₀Al₁₀ and Zr₅₀Cu₃₃Al₁₀Pd₇ (atomic, at., %) bulk metallic glasses were investigated in aerated and deaerated 0.6 M NaCl. Polarization in both environments yielded similar results. Initial anodic-polarization of both alloys demonstrated that small increases in the applied potential resulted in significant increases in the current density. Continued polarization produced diffusion controlled polarization. Scanning Auger microanalysis was used to analyze the corrosion pits. Pits formed on both BMGs were enriched with Cu and Cl. Palladium enrichment was also observed in pits on Zr₅₀Cu₃₃Al₁₀Pd₇. A corrosion mechanism related to the formation of CuCl and Cu₂O is proposed.

Original language	English
Pages (from-to)	1825-1832
Number of pages	8
Journal	Corrosion Science
Volume	50
Issue number	7
DOIs	https://doi.org/10.1016/j.corsci.2008.03.011
State	Published - Jul 2008

Keywords

A. Alloy
A. Glass
A. Zirconium
B. AES
C. Pitting corrosion

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10.1016/j.corsci.2008.03.011

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@article{688f8dcb9c184058b34069f912d2434c,

title = "A study of the corrosion behaviour of Zr50Cu(40-X)Al10PdX bulk metallic glasses with scanning Auger microanalysis",

abstract = "The anodic-polarization behaviours of Zr50Cu40Al10 and Zr50Cu33Al10Pd7 (atomic, at., %) bulk metallic glasses were investigated in aerated and deaerated 0.6 M NaCl. Polarization in both environments yielded similar results. Initial anodic-polarization of both alloys demonstrated that small increases in the applied potential resulted in significant increases in the current density. Continued polarization produced diffusion controlled polarization. Scanning Auger microanalysis was used to analyze the corrosion pits. Pits formed on both BMGs were enriched with Cu and Cl. Palladium enrichment was also observed in pits on Zr50Cu33Al10Pd7. A corrosion mechanism related to the formation of CuCl and Cu2O is proposed.",

keywords = "A. Alloy, A. Glass, A. Zirconium, B. AES, C. Pitting corrosion",

author = "Green, {B. A.} and Meyer, {H. M.} and Benson, {R. S.} and Y. Yokoyama and Liaw, {P. K.} and Liu, {C. T.}",

year = "2008",

month = jul,

doi = "10.1016/j.corsci.2008.03.011",

language = "English",

volume = "50",

pages = "1825--1832",

journal = "Corrosion Science",

issn = "0010-938X",

publisher = "Elsevier",

number = "7",

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TY - JOUR

T1 - A study of the corrosion behaviour of Zr50Cu(40-X)Al10PdX bulk metallic glasses with scanning Auger microanalysis

AU - Green, B. A.

AU - Meyer, H. M.

AU - Benson, R. S.

AU - Yokoyama, Y.

AU - Liaw, P. K.

AU - Liu, C. T.

PY - 2008/7

Y1 - 2008/7

N2 - The anodic-polarization behaviours of Zr50Cu40Al10 and Zr50Cu33Al10Pd7 (atomic, at., %) bulk metallic glasses were investigated in aerated and deaerated 0.6 M NaCl. Polarization in both environments yielded similar results. Initial anodic-polarization of both alloys demonstrated that small increases in the applied potential resulted in significant increases in the current density. Continued polarization produced diffusion controlled polarization. Scanning Auger microanalysis was used to analyze the corrosion pits. Pits formed on both BMGs were enriched with Cu and Cl. Palladium enrichment was also observed in pits on Zr50Cu33Al10Pd7. A corrosion mechanism related to the formation of CuCl and Cu2O is proposed.

AB - The anodic-polarization behaviours of Zr50Cu40Al10 and Zr50Cu33Al10Pd7 (atomic, at., %) bulk metallic glasses were investigated in aerated and deaerated 0.6 M NaCl. Polarization in both environments yielded similar results. Initial anodic-polarization of both alloys demonstrated that small increases in the applied potential resulted in significant increases in the current density. Continued polarization produced diffusion controlled polarization. Scanning Auger microanalysis was used to analyze the corrosion pits. Pits formed on both BMGs were enriched with Cu and Cl. Palladium enrichment was also observed in pits on Zr50Cu33Al10Pd7. A corrosion mechanism related to the formation of CuCl and Cu2O is proposed.

KW - A. Alloy

KW - A. Glass

KW - A. Zirconium

KW - B. AES

KW - C. Pitting corrosion

UR - http://www.scopus.com/inward/record.url?scp=47049106016&partnerID=8YFLogxK

U2 - 10.1016/j.corsci.2008.03.011

DO - 10.1016/j.corsci.2008.03.011

M3 - Article

AN - SCOPUS:47049106016

SN - 0010-938X

VL - 50

SP - 1825

EP - 1832

JO - Corrosion Science

JF - Corrosion Science

IS - 7

ER -

A study of the corrosion behaviour of Zr₅₀Cu_(40-X)Al₁₀Pd_X bulk metallic glasses with scanning Auger microanalysis

Abstract

Keywords

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