Effect of atmospheric and marine corrosive environments on tensile, impact and hardness properties of some steels

Ragab, Ahmed; Alawi, H.; Sorein, K.

doi:10.1016/0167-6636(94)90007-8

Cited by 4 publications

(2 citation statements)

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“…Of note, the relationship between hardness and UTS is not as in many other materials [ 46 ]. Similar behavior was reported by Regab et al [ 11 ], attributing this phenomenon of resistance to indentation decreasing, due to the formation of micro-pitting and micro-cracks, bulky corrosion products, and intergranular attacks. Therefore, surface defects, while affecting the hardness of steel, do not necessarily proportionally affect other properties based on the strength of the total material.…”

Section: Resultssupporting

confidence: 87%

“…Atmospheric corrosion may lead to material structural decay, fatigue cracking, brittle fracture, and unstable failures [ 10 , 11 ], attributable to variations in surface roughness [ 12 ] resulting from heterogeneously distributed corrosion, diminished surface area, and the formation of pitting. In Chile, studies on atmospheric corrosion have been carried out, and have determined the influence of atmospheric parameters and pollutants [ 13 , 14 , 15 , 16 , 17 , 18 , 19 ].…”

Section: Introductionmentioning

confidence: 99%

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Effect of Atmospheric Corrosion on the Mechanical Properties of SAE 1020 Structural Steel

et al. 2018

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Resistance to atmospheric corrosion in different environments located in Chile and the corrosion’s effect on the mechanical properties of SAE 1020 steel were studied. Atmospheric corrosivity categories at each station under study were determined. These categories were C2, for Laja; C3 and C4, for the Arica and Antarctic stations, respectively; and the most aggressive, C5 and higher at Quintero. These specific environments significantly influenced the mechanical responses of steel exposed for 36 months. Rupture elongation, the modulus of toughness, ultimate tensile strength, and hardness of the material all decreased as a function of environmental atmospheric aggressiveness. Lowered ductility is the result of the increased corrosion rate due to the high deposition of chlorides. This is due to the morphology of material degradation, which consequently occurs as pores, microstrains, and other defects that promote early rupture of the steel.

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Section: Resultssupporting

confidence: 87%