Influence of Cr Content on Corrosion Behaviour of Tube Pile Steel in Half-Immersion Environment

Liu, X. Q.; Liu, Z. L.; Hu, Junchen; Hou, Zhiguo; Tian, Qingfeng; Wang, H. Z.

doi:10.1007/s12666-017-1156-0

Cited by 3 publications

(2 citation statements)

References 16 publications

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“…The production of this film can effectively prevent the occurrence of pitting and significantly improve the stress corrosion cracking resistance of the material [36]. In addition, it was found that a high Cr content not only improves the uniform corrosion resistance, but also the local corrosion [21,22,37]. Figure 7 shows the relationship between Cr and Fe and soak duration and acid concentration.…”

Section: Effect Of Pickling Treatment On Super 13cr Surface Chemical ...mentioning

confidence: 99%

“…Meanwhile, Super 13Cr contains a fraction of inverter austenite that can improve its corrosion resistance [17][18][19][20]. Increasing the Cr content in stainless steel is a general and apparent method to improve the corrosion resistance performance [21,22], such as in the 15Cr and 17Cr stainless steel developed by JFE Holdings, Inc. (Tokyo, Japan). Compared with the Super 13Cr, these two stainless steels both significantly improve the corrosion resistance [23].…”

Section: Introductionmentioning

confidence: 99%

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The Influence of Pickling Treatment Parameters on the Surface State and Pre-Passivation Behavior of Super 13Cr Martensitic Stainless Steel

et al. 2022

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As a pre-treatment process in the pre-passivation of stainless steel, pickling treatment has a significant effect on the formation of the pre-passivation film. Thus, the surface composition and defects of Super 13Cr martensitic stainless steel (Super 13Cr) were evaluated under different pickling parameters to further improve the corrosion resistance of the pre-passivation film. The samples were prepared using the acid immersion method and by changing the immersion duration and the acid concentration. The inclusion and chemical composition on the Super 13Cr surface were characterized via a scanning electron microscope (SEM) and energy-dispersive X-ray spectroscopy (EDS). The pickling treatment contributes little to the morphology, dimension, and other characteristic parameters of the inclusions. With the increasing duration and acidification concentration, the Cr content on the surface of Super 13Cr increases initially and then decreases. By contrast, the Fe content decreases initially and then increases. The pickling parameters corresponding to the lowest Fe content and the highest Cr content are identical, i.e., the exposure duration is 50 s and the acid concentration is 48 g/L. The pickling treatment in this case could be divided into two stages: outer film dissolution and inner film dissolution. The pickling parameters basically contribute little to the defects of martensitic stainless steel but can significantly affect the surface Cr and Fe content. Retaining the Cr-enriched inner layer could improve the content of Cr in the pre-passivation film and then improve the corrosion resistance of the film. Thus, compared with the original sample with native film, the corrosion resistance of the sample with a Cr-enriched inner layer improved by a factor of about 40.

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Section: Effect Of Pickling Treatment On Super 13cr Surface Chemical ...mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

The Influence of Pickling Treatment Parameters on the Surface State and Pre-Passivation Behavior of Super 13Cr Martensitic Stainless Steel

et al. 2022

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Essential role of element Si in corrosion resistance of a bridge steel in chloride atmosphere

et al. 2020

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Fabrication of hydrophobic AlCoCrFeNi high-entropy alloy and superior corrosion resistance to NTO aqueous solution

Wang

Shu

Shi

et al. 2022

Journal of Alloys and Compounds

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Influence of Cr Content on Corrosion Behaviour of Tube Pile Steel in Half-Immersion Environment

Cited by 3 publications

References 16 publications

The Influence of Pickling Treatment Parameters on the Surface State and Pre-Passivation Behavior of Super 13Cr Martensitic Stainless Steel

The Influence of Pickling Treatment Parameters on the Surface State and Pre-Passivation Behavior of Super 13Cr Martensitic Stainless Steel

Essential role of element Si in corrosion resistance of a bridge steel in chloride atmosphere

Fabrication of hydrophobic AlCoCrFeNi high-entropy alloy and superior corrosion resistance to NTO aqueous solution

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