Effects of spiral magnetic field on structures transformation and macrosegregation of Sn-Pb alloy

Zhang, Xingguo; Zhao, Qian; Jian-She, Guo; Xing, Qingyuan; Deng, Liang; Hou, Xianhua; Fang, Canfeng

doi:10.1007/s40195-012-0256-4

Cited by 11 publications

(2 citation statements)

References 10 publications

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“…As is known that the chloride ions can be absorbed on the surface as a result of the formation of a thin electrolyte layer in the chloride solution [24,51], the chloride ions break down the passive film and lead to metastable pits firstly. The metastable pits will either grow up into stable pits and develop further in depth or be repaired by the re-passivation of metal.…”

Section: Chemical Composition Of Passive Filmsmentioning

confidence: 99%

Enhancements of Passive Film and Pitting Resistance in Chloride Solution for 316LX Austenitic Stainless Steel After Sn Alloying

Yang

Liu

Cheng

et al. 2018

Acta Metall. Sin. (Engl. Lett.)

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In the present work, the electrochemical behavior and properties of the passive film of a new Sn-alloyed 316LX austenitic stainless steel were investigated. With the increase in Sn content in 316LX austenitic stainless steel from 0 to 0.21%, the critical pitting temperature value increased from 32.6 to 38.8°C, and the pitting potential increased from 0.252 V SCE to 0.317 V SCE . Electrochemical impedance spectroscopy results showed that the corrosion resistance of passive film rose with the increase in Sn content, indicating a more stable passive film. The Mott-Schottky measurement revealed an n-type passive film with a decreased carrier concentration on the 316LX austenitic stainless steel surface. The Cr, Sn 2? and Sn 4? (SnO, SnOHCl or SnO 2 ) enrichments were observed in the passive layer by X-ray photoelectron spectroscopy. The enrichment of Sn and Cr in the passive film can account for the enhanced pitting resistance of 316LX austenitic stainless steel in chloride solution.

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Section: Chemical Composition Of Passive Filmsmentioning

confidence: 99%

Enhancements of Passive Film and Pitting Resistance in Chloride Solution for 316LX Austenitic Stainless Steel After Sn Alloying

Yang

Liu

Cheng

et al. 2018

Acta Metall. Sin. (Engl. Lett.)

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show abstract

“…However, the chloride ions can adsorbed on the specimens and destroy the protective passive film and induce pitting corrosion [23]. Figure 8 summarizes the mechanism whereby tin increases corrosion resistance in the austenitic stainless steel B316LX in sulfuric acid chloride media.…”

Section: Mechanism Of the Influence Of Tin Addition On Corrosion Resimentioning

confidence: 99%

Effect of Alloying Tin on the Corrosion Characteristics of Austenitic Stainless Steel in Sulfuric Acid and Sodium Chloride Solutions

Sun

Liu

et al. 2015

Acta Metall. Sin. (Engl. Lett.)

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The effect of tin on general and pitting corrosion behaviors of the austenitic stainless steel in sulfuric acid and sodium chloride solutions was investigated by potentiostatic critical pitting temperature, cyclic potentiodynamic polarization, electrochemical impedance spectroscopy, and scanning electron microscopy. The results showed that there is an optimal tin addition which is around (0.062-0.1) wt%, and the general corrosion resistance of B316LX with 0.08 wt% tin addition in boiling H 2 SO 4 increased remarkably with a corrosion rate of an order of magnitude lower than that of 316L. Hydrolyzation of tin ions induces more metastable pit occurrence on the material surface. However, the pitting resistance of B316LX increases because tin oxides improve the density and uniformity of the passive film, and hydroxide and oxide of tin inhabit the process of pit growing. The effect of tin on pitting corrosion process is illustrated schematically.

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A Review of Permanent Magnet Stirring During Metal Solidification

Zeng

Chen

Yang

et al. 2017

Metall Mater Trans B

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Effects of spiral magnetic field on structures transformation and macrosegregation of Sn-Pb alloy

Cited by 11 publications

References 10 publications

Enhancements of Passive Film and Pitting Resistance in Chloride Solution for 316LX Austenitic Stainless Steel After Sn Alloying

Enhancements of Passive Film and Pitting Resistance in Chloride Solution for 316LX Austenitic Stainless Steel After Sn Alloying

Effect of Alloying Tin on the Corrosion Characteristics of Austenitic Stainless Steel in Sulfuric Acid and Sodium Chloride Solutions

A Review of Permanent Magnet Stirring During Metal Solidification

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