Original scientific paper

Analysis of corrosion behavior of low carbon alloy steel

W. P. Zhao ; North China University of Science and Technology, Hebei, Tangshan, China
X. P. Guo ; School of Materials Science and Engineering, Chongqing University, Chongqing, China
L. Sun ; Tangshan Iron and Steel Group Co., Hebei Tangshan, China
J. Y. Li ; Tangshan Iron and Steel Group Co., Hebei Tangshan, China
H. C. Ji orcid.org/0000-0002-1592-6362 ; North China University of Science and Technology, Hebei, Tangshan, China
T. Li ; North China University of Science and Technology, Hebei, Tangshan, China

Abstract

In this study, a 72-h neutral salt spray test was conducted on two low-carbon alloy steels and their corrosion kinetic equations were constructed, and tensile tests were conducted on specimens with different corrosion cycles to evaluate the mechanical properties of the two experimental steels. The test results showed that the corrosion resistance of TZ750MS was better than that of H750MS during the whole test cycle; however, the predicted results of the corrosion kinetic equation showed that the corrosion resistance of TZ750MS was lower than that of H750MS after 144 h. The tensile test results showed that the strength of both steels did not change substantially after corrosion, and the tensile stress-strain diagram showed that the specimens would fracture earlier after passing through the plastic deformation zone .

Keywords

alloy steel, chemical composition, corrosion mechanisms, neutral salt spray, static stretching

Hrčak ID:

290068

URI

https://hrcak.srce.hr/290068

Publication date:

3.4.2023.

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