Effect of surface roughness on tensile ductility of artificially corroded steel plates

Gathimba, Naftary; Kitane, Yasuo

doi:10.1016/j.jcsr.2020.106392

Cited by 32 publications

(6 citation statements)

References 18 publications

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“…Steel corrosion has been extensively studied. After all, it is a serious problem for the performance of structures, especially steel bridges, because it can result in a reduction in cross-section and a decrease in the mechanical properties of the material, such as a decrease in ductility, including a decrease in ultimate strength, and a decrease in yield strength [15] [16]. Other studies conducted on steel for pipelines and bridges also concluded the same thing.…”

Section: Introductionmentioning

confidence: 89%

Effect of one-year corrosion on steel bridge materials in the maintenance stage with the Charpy impact test method

Fahimuddin,

Kasmuri,

Sofyan

et al. 2023

Sinergi

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Corrosion of steel bridges is a major problem because it has the potential to reduce the performance of the structure over its lifetime. One factor that should not be reduced is fracture toughness, so this should be a very important concern in the maintenance program. Existing guidelines do not specify when corrosion conditions are hazardous and when corrosion conditions are not hazardous to structural performance. This study aims to explain how long corrosion does not cause danger, and when corrosion becomes dangerous. The Charpy Impact Test was used in this study to examine the effect of corrosion with a corrosion duration of weekly up to one year on fracture toughness. The series of tests in this research program used SM-490-type specimens which are steel plates commonly used for bridge structures. Specimens with variations in corrosion duration which were the result of immersion in sulfuric acid solution to simulate corrosion growth were then subjected to crack toughness testing. The toughness of each specimen was tested with a corrosion period starting from 1 week and so on up to 1 year to determine the level of fracture toughness. The results obtained from all tests showed that there was no decrease in the toughness of the corroded specimens for up to 1 year. The data presented in this study is very helpful for the designers and maintainers to plan corrosion treatment programs with clearer and more accurate considerations in assessing the structural integrity of steel bridges affected by corrosion.

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Section: Introductionmentioning

confidence: 89%

Effect of one-year corrosion on steel bridge materials in the maintenance stage with the Charpy impact test method

Fahimuddin,

Kasmuri,

Sofyan

et al. 2023

Sinergi

View full text Add to dashboard Cite

show abstract

“…However, differences in yield strength are still observed, indicating that there are other effects at play. The most obvious explanation is the increase in local stress concentrations due to the rough surface, which is known to reduce strength [45][46][47].…”

Section: Tensile Propertiesmentioning

confidence: 99%

Morphological Induced Improvements in the Bulk Mechanical Properties of Chemically Etched Additively Manufactured Ti-6al-4v Micro-Struts

O’Keeffe

Taylor

Lally

et al. 2023

Preprint

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“…Test specimens and carbon plates were placed in the tank filled with the 5% NaCl solution. It is worth noting that the electrochemical accelerated corrosion test was selected by many researchers [42,44,49]. The direct electric current was impressed on Q620 HSS specimens to accelerate the corrosion.…”

Section: Electrochemical Accelerated Corrosion Test Proceduresmentioning

confidence: 99%

Mechanical Property Model of Q620 High-Strength Steel with Corrosion Effects

et al. 2022

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High-strength steel (HSS) is widely used in engineering structures, due to its superior material performance, but corrosion tends to occur in steel structures with time. The corrosion effects on mechanical performance of Q620 HSS were investigated experimentally. The electrochemical accelerated corrosion test was conducted to generate corroded Q620 HSS specimens (ρ = 0~60%). With increases in the corrosion degree, corrosion performance became more and more non-uniform. The tensile coupon test was conducted to clarify mechanical properties of corroded Q620 HSS specimens. With increases in corrosion degree, fy, fu, εu and E decreased, correspondingly. The effect of corrosion on εy could be ignored. With the deepening of corrosion, the necking of Q620 HSS specimens was weakened, which reduced their ductility. The simplified constitutive model consisting of nominal yield point (εy, fy) and ultimate point (εu, fu) was proposed to quantify the mechanical properties of Q620 HSS with different corrosion degrees. After the numerical fitting, relationships between the corrosion degree and mechanical properties were clarified. Based on the results of numerical fitting, mechanical properties of corroded Q620 HSS specimens were worse than those of specimens with idealized uniform corrosion. The adverse effect of corrosion on εuc was more obvious than that on strength properties. Comparison among different mild steels and HSSs was performed. Different indexes were chosen to clarify corrosion effects on the ductility of corroded Q620 HSS specimens. This study considers and discusses the research on corrosion rates, the relationships between service time, service environment, corrosion form and strength properties of Q620 HSS.

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Effect of surface roughness on tensile ductility of artificially corroded steel plates

Cited by 32 publications

References 18 publications

Effect of one-year corrosion on steel bridge materials in the maintenance stage with the Charpy impact test method

Effect of one-year corrosion on steel bridge materials in the maintenance stage with the Charpy impact test method

Morphological Induced Improvements in the Bulk Mechanical Properties of Chemically Etched Additively Manufactured Ti-6al-4v Micro-Struts

Mechanical Property Model of Q620 High-Strength Steel with Corrosion Effects

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