Optimization of corrosion resistance of LMD-processed 316L austenitic stainless steel by adding CeO2 nanoparticles in a simulated environment for PEMFCs

Journal of Rare Earths, Год журнала: 2025, Номер unknown

Опубликована: Янв. 1, 2025

Язык: Английский

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Role of Te-RE alloying on the passive film and pitting corrosion behavior of 316L stainless steel

Corrosion Science, Год журнала: 2024, Номер 240, С. 112457 - 112457

Опубликована: Сен. 16, 2024

Язык: Английский

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A Novel Model for the Removal and Capture of Inclusions in Electroslag Remelting Process

Опубликована: Янв. 1, 2025

The cleanliness of steel is a critical factor influencing its corrosion resistance and mechanical properties. Electroslag remelting (ESR) technology has demonstrated excellent performance in removing inclusions from electroslag ingots. In general, four primary pathways exist for the removal capture inherited electrode ESR process. Current numerical simulation research typically focuses on modeling two or three these processes. This study, however, presents highly accurate model that integrates electromagnetic field with flow heat transfer throughout entire process inclusion movement, ESR. To validate accuracy model, 2-ton industrial-scale furnace was employed preparation hot work tool H13. By comparing metal droplet size residual distribution ingot as measured industrial production, ability to predict confirmed. results reveal increases 5 μm 20 μm, proportion exuded liquid film decreases. Conversely, there significant increase escape droplets float up pool. Notably, accounts substantial proportion, exceeding ten percent. stage crucial models cannot be overlooked.

Язык: Английский

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A strategy to overcome the negative effect of Mg treatment on localized corrosion and enhance the performance of high-nitrogen martensitic stainless steel by Mg&Ce composite treatment

Corrosion Science, Год журнала: 2025, Номер unknown, С. 112852 - 112852

Опубликована: Март 1, 2025

Язык: Английский

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New strategies for suppressing localized corrosion induced by inclusions: A case study of rare earth Y-treated oil casing steel

Corrosion Science, Год журнала: 2025, Номер unknown, С. 112969 - 112969

Опубликована: Апрель 1, 2025

Язык: Английский

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Pitting behavior of austenitic stainless-steel welded joints with dense inclusions and methods to enhance pitting resistance

Anti-Corrosion Methods and Materials, Год журнала: 2024, Номер 71(6), С. 764 - 777

Опубликована: Авг. 6, 2024

Purpose This study aims to assess the pitting resistance of austenitic stainless steel welded joints fusion zone (FZ) with high density inclusions before and after surface treatment, including potentiostatic pulse technique (PPT) pickling. Design/methodology/approach The potentiodynamic polarization tests critical temperature were carried out for estimating resistance. PPT pickling performed as treatment. Scanning electron microscope (SEM) energy dispersive spectrometer used characterize microstructure elemental distribution. Electron back-scattered diffraction (EBSD) was portion phases morphology grains. Findings weld metal exhibits a higher degree alloying compared base metal, it contains d-phase sulfur-containing inclusions. Sulfur-containing serve initiation sites pitting, they diminish metal. Both can remove inclusions, but causes localized dissolution matrix around while does not. Because certain pits initiated by are significantly deeper, which makes formation stable easier. deeper. characteristic facilitates progression these initial defects into fully developed, pits. Originality/value Analysis in shielded arc welding FZ ex situ SEM tracking observation. Explanation why treatment is not able enhance inclusion density.

Язык: Английский

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Revealing the Effect of Ce on Pitting Corrosion Induced by Inclusions in Low Alloy Steel: Induction by CaS·C₁₂A₇ and Inhibition by CeAlO₃

Langmuir, Год журнала: 2024, Номер unknown

Опубликована: Ноя. 18, 2024

Low alloy steel faces localized corrosion issues in service environments, primarily due to pitting induced by inclusions. Conventional protective measures cannot significantly improve the resistance of steel. In this study, an effective industrial approach was proposed enhance low steels. Cerium (Ce) added during refining process modify inclusions and alter mechanism inclusion-induced corrosion, thereby improving substrate's ability inhibit corrosion. The effect Ce treatment on cleanliness molten investigated, a kinetic model inclusion evolution established based thermodynamic calculations. CaS·C

Язык: Английский

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Effect of the Addition Orders of La, Ti and Mg on Inclusions in Steel AH36

Metallurgical and Materials Transactions B, Год журнала: 2024, Номер unknown

Опубликована: Дек. 2, 2024

Язык: Английский

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Mechanisms of pitting induced by containing Ce inclusions in X100 pipeline steel

Journal of Materials Research and Technology, Год журнала: 2024, Номер unknown

Опубликована: Ноя. 1, 2024

Язык: Английский

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