Atmospheric corrosion and impact toughness of steels: Case study in steels with and without galvanizing, exposed for 3 years in Rapa Nui Island

被引：4

作者：

Vera, Rosa ^{[1
]}

Valverde, Barbara ^{[1
]}

Olave, Elizabeth ^{[1
]}

Sanchez, Rodrigo ^{[1
]}

Diaz-Gomez, Andres ^{[1
]}

Munoz, Lisa ^{[1
]}

Rojas, Paula ^{[2
]}

机构：

[1] Pontificia Univ Catolica Valparaiso, Inst Chem, Fac Sci, Ave Univ 330, Valparaiso, Chile

[2] Univ Adolfo Ibanez, Fac Engn & Sci, Diagonal Las Torres 2640, Santiago, Chile

来源：

HELIYON | 2023年 / 9卷 / 07期

关键词：

atmospheric corrosion; Mild steel; Galvanized steel; Impact toughness; Marine environment; TENERIFE CANARY-ISLANDS; CARBON-STEEL; MECHANICAL-PROPERTIES; SUBTROPICAL AREAS; WEATHERING STEEL; CLIMATE CHANGES; NANSHA ISLANDS; SANTA-CRUZ; ZINC; PRODUCTS;

D O I：

10.1016/j.heliyon.2023.e17811

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

We studied atmospheric corrosion on Rapa Nui Island, using galvanized and non-galvanized SAE 1020 steel samples exposed on racks. We also added Charpy samples of both materials to directly determine the effect of corrosion rate on these materials' impact toughness. The results indicated a correlation between corrosion rate and toughness loss in the studied materials. In the corrosion study, we could also demonstrate the effect from increased insular population growth on con-taminants which aid atmospheric corrosivity. Results showed that atmospheric SO2 has tripled compared with similar corrosion studies done 20 years ago (Mapa Iberoamericano de Corrosi & PRIME;on, MICAT), increasing corrosion rates. Our results show how human factors can influence changes in environmental variables that strengthen corrosion.

引用

页数：16

共 6 条

[1] Corrosion Behavior of Copper Exposed in Marine Tropical Atmosphere in Rapa Nui (Easter Island) Chile 20 Years after MICAT
Vera, Rosa
Valverde, Barbara
Olave, Elizabeth
Diaz-Gomez, Andres
Sanchez-Gonzalez, Rodrigo
Munoz, Lisa
Martinez, Carola
Rojas, Paula
METALS, 2022, 12 (12)
[2] Corrosion study of steels exposed over five years to the humid tropical atmosphere of Panama
Juan A. Jaén
Josefina Iglesias
Hyperfine Interactions, 2017, 238
[3] Corrosion study of steels exposed over five years to the humid tropical atmosphere of Panama
Jaen, Juan A.
Iglesias, Josefina
HYPERFINE INTERACTIONS, 2017, 238
[4] Prediction of stress-corrosion cracking using electrochemical noise measurements: A case study of carbon steels exposed to H2O-CO-CO2 environment
van der Merwe, J. W.
du Toit, M.
Klenam, D. E. P.
Bodunrin, M. O.
ENGINEERING FAILURE ANALYSIS, 2023, 144
[5] Simulating study of atmospheric corrosion of steels in a coastal industrial zone: Effect of SO32- on the formation of β-FeOOH rust particles synthesized from FeCl3 solutions
Tanaka, Hidekazu
Inoue, Masahiko
Ishikawa, Tatsuo
Nakayama, Takenori
CORROSION SCIENCE, 2016, 112 : 241 - 245
[6] A Comparative Study of the Corrosion Behavior of Three Stainless Steels in an Eutectic (Li,Na,K)2CO3 Melt with and without (Na,K)Cl Additives at 973K in Air
Zeng, C. L.
Liu, Y.
HIGH TEMPERATURE MATERIALS AND PROCESSES, 2011, 30 (1-2) : 161 - 169

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