Corrosivity of the tropical atmosphere of South Vietnam
https://doi.org/10.31615/j.corros.prot.2022.106.4-1
Abstract
Based on the results of annual corrosion tests at Kon Zo corrosion station, the southern branch of the Tropical Center in Ho Chi Minh City (Vietnam) determined the atmospheric corrosion rates of steel, copper, zinc, and aluminium. The corrosivity of atmosphere of Kon Zo corrosion station assessed in to relation to each metal according to the Methodology of international standard ISO 9223:2012 (Е). Using Dose-Response Functions (DRF) the corrosion rates of these metals for the first year (К1) were calculated with use of meteorological and aerochemical parameters of the atmosphere. A satisfactory correlation between the observed and calculated values for steel, copper and aluminium obtained. This indicates the possibility of using the DRF of international standard for determination the values К1 and corrosivity categories in areas of Vietnam.
About the Authors
N. G. Anufriev
Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences
Russian Federation
Russian Federation
Nikolay G. Anufriev, Ph.D. in Chemistry, leading researcher
bld. 4, 31, Leninskii prospect, Moscow
Yu. A. Kuzenkov
Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences
Russian Federation
Russian Federation
Yuri A. Kuzenkov, Ph.D. in Chemistry, Head of the Laboratory
bld. 4, 31, Leninskii prospect, Moscow
References
1. Vu Din Vui. (1994). Atmospheric Corrosion of metals in tropics. Moscow: Science.
2. Corrosion of metals and alloys − Corrosivity of atmospheres − Classification, determination and estimation. ISO 9223:2012 (E).
3. Mikhailov, А. А., Tidblud, J., Kuchera, V. (2004). Classification system of ISO 9223 standard and Dose-Response Functions of outdore atmospheres. Protection of metals, 40(6), 601-610.
4. Karpov, V. A., Ivonin, V. N., Thi Minh Tien, Timonin, V. A., Mikhailova, O. L., Kovalchuk, Yu. L., Pham Zui Nam, & Kha Hiu Shon. (2014). Determination of Corrosivity of atmosphere on testing station Tropical Center and some districts of Vetnam. Corrosion: Materials, protection, (9), 1-7.
5. Standard Practice for Conducting Atmospheric Corrosion Tests on Metals. (2015). ASTM G50-10.
6. ESKZS. Metals, alloys. Metal and nonmetal inorganic coatings. Test methods at climatic testing stations. GOST 9.909-86.
7. ESKZS. Appendix 1. Methods for determining the content in the air of sulfur dioxide, chlorides and ammonia. GOST 9.039-74.
8. Standard Practice for Preparing, Cleaning, and Evaluating Corrosion Test Specimens. (2011). ASTM G1-03.
9. Metals, alloys, metal coatings. Methods for removing corrosion products after corrosion tests. GOST 9.907-2007.
10. Leygraf, C., Wallinder, I.O., Tidblad, J., Graedel, T. (2016). Atmospheric Corrosion. Second Edition. Wiley.
Review
For citations:
Anufriev N.G., Kuzenkov Yu.A. Corrosivity of the tropical atmosphere of South Vietnam. Theory and Practice of Corrosion Protection. 2022;27(4):7-18. (In Russ.) https://doi.org/10.31615/j.corros.prot.2022.106.4-1
Views:
209
Email this article 