Internal friction study of environmental effects on metals and alloys

Yu. Jagodzinski (Corresponding Author), P. Aaltonen, S. Smuk, O. Tarasenko, H. Hänninen

Research output: Contribution to journalArticleScientificpeer-review

12 Citations (Scopus)

Abstract

The internal friction method was applied for studying structural changes occurring in bulk metal due to its interaction with the environment. It was shown that the active dissolution of metal or its oxidation is accompanied by the generation of non-equilibrium vacancies. Diffusive transfer of vacancies into the bulk causes considerable rearrangements of the defect structure of the crystal and, therefore, changes in its anelastic response. Environmental effects have been studied in pure copper subjected to oxidation in a 0.3 N solution of NaNO2. Such an interaction resulted in the formation of Hasiguti peaks. A similar effect was found in admiralty brass after oxidation in hot tap water, resulting in selective dissolution of zinc. Low-temperature internal friction peaks were also found in the range 150–200 K in Al–5 Mg industrial alloy subjected to active dissolution in 0.05 N KOH solution. The results obtained are discussed in terms of the applicability of the internal friction method for predicting the susceptibility of metals and alloys to environmentally assisted cracking.

Original languageEnglish
Pages (from-to)256 - 260
Number of pages5
JournalJournal of Alloys and Compounds
Volume310
Issue number1-2
DOIs
Publication statusPublished - 2000
MoE publication typeA1 Journal article-refereed

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Internal friction
Environmental impact
Dissolution
Metals
Oxidation
Vacancies
Defect structures
Brass
Zinc
Copper
Crystals
Water
Temperature

Cite this

Jagodzinski, Y., Aaltonen, P., Smuk, S., Tarasenko, O., & Hänninen, H. (2000). Internal friction study of environmental effects on metals and alloys. Journal of Alloys and Compounds, 310(1-2), 256 - 260. https://doi.org/10.1016/S0925-8388(00)01026-4
Jagodzinski, Yu. ; Aaltonen, P. ; Smuk, S. ; Tarasenko, O. ; Hänninen, H. / Internal friction study of environmental effects on metals and alloys. In: Journal of Alloys and Compounds. 2000 ; Vol. 310, No. 1-2. pp. 256 - 260.
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Jagodzinski, Y, Aaltonen, P, Smuk, S, Tarasenko, O & Hänninen, H 2000, 'Internal friction study of environmental effects on metals and alloys', Journal of Alloys and Compounds, vol. 310, no. 1-2, pp. 256 - 260. https://doi.org/10.1016/S0925-8388(00)01026-4

Internal friction study of environmental effects on metals and alloys. / Jagodzinski, Yu. (Corresponding Author); Aaltonen, P.; Smuk, S.; Tarasenko, O.; Hänninen, H.

In: Journal of Alloys and Compounds, Vol. 310, No. 1-2, 2000, p. 256 - 260.

Research output: Contribution to journalArticleScientificpeer-review

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AB - The internal friction method was applied for studying structural changes occurring in bulk metal due to its interaction with the environment. It was shown that the active dissolution of metal or its oxidation is accompanied by the generation of non-equilibrium vacancies. Diffusive transfer of vacancies into the bulk causes considerable rearrangements of the defect structure of the crystal and, therefore, changes in its anelastic response. Environmental effects have been studied in pure copper subjected to oxidation in a 0.3 N solution of NaNO2. Such an interaction resulted in the formation of Hasiguti peaks. A similar effect was found in admiralty brass after oxidation in hot tap water, resulting in selective dissolution of zinc. Low-temperature internal friction peaks were also found in the range 150–200 K in Al–5 Mg industrial alloy subjected to active dissolution in 0.05 N KOH solution. The results obtained are discussed in terms of the applicability of the internal friction method for predicting the susceptibility of metals and alloys to environmentally assisted cracking.

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