Corrosion resistance of dilute CuMg alloys at elevated temperature

G. J. Liu; S. S. Jia; S. H. Hong; J. W. Lim; Y. F. Zhu; K. Mimura; M. Isshiki

doi:10.1016/j.corsci.2008.12.009

Corrosion resistance of dilute CuMg alloys at elevated temperature

G. J. Liu, S. S. Jia, S. H. Hong, J. W. Lim, Y. F. Zhu, K. Mimura, M. Isshiki

Division of Inorganic Material Research

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

6 Citations (Scopus)

Abstract

In comparison with CuAl (Al: 0.2 and 0.5 wt.%) alloys, corrosion resistance (CR) of CuMg (Mg: 0.12 and 0.34 wt.%) alloys was studied at 673-1173 K in atmospheric O₂. All the samples were pre-annealed at 873 K in atmospheric H₂. The CR of CuMg alloys at 673-973 K is improved in contrast to a pure Cu but much poorer than that of CuAl alloys, while the improvement can hardly be observed for CuMg alloys at and above 1073 K, which is similar to CuAl alloys. The poorer CR of CuMg alloys compared with that of CuAl alloys at 673-973 K is largely attributed to the incorporation of Cu in the MgO surface layer and the low Pilling-Bedworth ratio of CuMg-O system smaller than unity, and the vanishing of CR for CuMg alloys at and above 1073 K is ascribed to the instability of the MgO layer at the Cu₂O/CuMg interface.

Original language	English
Pages (from-to)	463-468
Number of pages	6
Journal	Corrosion Science
Volume	51
Issue number	3
DOIs	https://doi.org/10.1016/j.corsci.2008.12.009
Publication status	Published - 2009 Mar

Keywords

A. Alloy
A. Copper
B. SIMS
C. High temperature oxidation
C. Selective oxidation

ASJC Scopus subject areas

Chemistry(all)
Chemical Engineering(all)
Materials Science(all)

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10.1016/j.corsci.2008.12.009

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title = "Corrosion resistance of dilute CuMg alloys at elevated temperature",

abstract = "In comparison with CuAl (Al: 0.2 and 0.5 wt.%) alloys, corrosion resistance (CR) of CuMg (Mg: 0.12 and 0.34 wt.%) alloys was studied at 673-1173 K in atmospheric O2. All the samples were pre-annealed at 873 K in atmospheric H2. The CR of CuMg alloys at 673-973 K is improved in contrast to a pure Cu but much poorer than that of CuAl alloys, while the improvement can hardly be observed for CuMg alloys at and above 1073 K, which is similar to CuAl alloys. The poorer CR of CuMg alloys compared with that of CuAl alloys at 673-973 K is largely attributed to the incorporation of Cu in the MgO surface layer and the low Pilling-Bedworth ratio of CuMg-O system smaller than unity, and the vanishing of CR for CuMg alloys at and above 1073 K is ascribed to the instability of the MgO layer at the Cu2O/CuMg interface.",

keywords = "A. Alloy, A. Copper, B. SIMS, C. High temperature oxidation, C. Selective oxidation",

author = "Liu, {G. J.} and Jia, {S. S.} and Hong, {S. H.} and Lim, {J. W.} and Zhu, {Y. F.} and K. Mimura and M. Isshiki",

note = "Funding Information: The Chinese authors acknowledge the financial supports from NNSFC (Grant No. 60876074) and “985 Project” of Jilin University. ",

year = "2009",

month = mar,

doi = "10.1016/j.corsci.2008.12.009",

language = "English",

volume = "51",

pages = "463--468",

journal = "Corrosion Science",

issn = "0010-938X",

publisher = "Elsevier Limited",

number = "3",

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TY - JOUR

T1 - Corrosion resistance of dilute CuMg alloys at elevated temperature

AU - Liu, G. J.

AU - Jia, S. S.

AU - Hong, S. H.

AU - Lim, J. W.

AU - Zhu, Y. F.

AU - Mimura, K.

AU - Isshiki, M.

N1 - Funding Information: The Chinese authors acknowledge the financial supports from NNSFC (Grant No. 60876074) and “985 Project” of Jilin University.

PY - 2009/3

Y1 - 2009/3

N2 - In comparison with CuAl (Al: 0.2 and 0.5 wt.%) alloys, corrosion resistance (CR) of CuMg (Mg: 0.12 and 0.34 wt.%) alloys was studied at 673-1173 K in atmospheric O2. All the samples were pre-annealed at 873 K in atmospheric H2. The CR of CuMg alloys at 673-973 K is improved in contrast to a pure Cu but much poorer than that of CuAl alloys, while the improvement can hardly be observed for CuMg alloys at and above 1073 K, which is similar to CuAl alloys. The poorer CR of CuMg alloys compared with that of CuAl alloys at 673-973 K is largely attributed to the incorporation of Cu in the MgO surface layer and the low Pilling-Bedworth ratio of CuMg-O system smaller than unity, and the vanishing of CR for CuMg alloys at and above 1073 K is ascribed to the instability of the MgO layer at the Cu2O/CuMg interface.

AB - In comparison with CuAl (Al: 0.2 and 0.5 wt.%) alloys, corrosion resistance (CR) of CuMg (Mg: 0.12 and 0.34 wt.%) alloys was studied at 673-1173 K in atmospheric O2. All the samples were pre-annealed at 873 K in atmospheric H2. The CR of CuMg alloys at 673-973 K is improved in contrast to a pure Cu but much poorer than that of CuAl alloys, while the improvement can hardly be observed for CuMg alloys at and above 1073 K, which is similar to CuAl alloys. The poorer CR of CuMg alloys compared with that of CuAl alloys at 673-973 K is largely attributed to the incorporation of Cu in the MgO surface layer and the low Pilling-Bedworth ratio of CuMg-O system smaller than unity, and the vanishing of CR for CuMg alloys at and above 1073 K is ascribed to the instability of the MgO layer at the Cu2O/CuMg interface.

KW - A. Alloy

KW - A. Copper

KW - B. SIMS

KW - C. High temperature oxidation

KW - C. Selective oxidation

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DO - 10.1016/j.corsci.2008.12.009

M3 - Article

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VL - 51

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JO - Corrosion Science

JF - Corrosion Science

SN - 0010-938X

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ER -

Corrosion resistance of dilute CuMg alloys at elevated temperature

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Keywords

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