Strengthened forced convection – A novel method for improving the pitting corrosion resistance of friction-surfaced stainless steel coating

D. Guo; C. T. Kwok; S. L.I. Chan

doi:10.1016/j.matdes.2019.108037

Strengthened forced convection – A novel method for improving the pitting corrosion resistance of friction-surfaced stainless steel coating

D. Guo, C. T. Kwok, S. L.I. Chan

化學工程與材料工程學系

研究成果: 雜誌貢獻 › 期刊論文 › 同行評審

12 引文斯高帕斯（Scopus）

摘要

During friction surfacing (FS), argon is commonly used as shielding gas for avoiding oxidation, and the resistance of FSed 316L coatings to pitting corrosion is normally improved by the fragmentation of MnS inclusions. In the present study, it is demonstrated that the resistance of the FSed coating to pitting corrosion could be further improved using strengthened forced convection (SFC) with argon shielding. Restoration and further growth of dynamically recrystallized grains under SFC relieve the elastic strain in {111} grains, decrease the dislocation density, and hence reduce the metastable pit initiation probability effectively and suppress the stable pit transition susceptibility slightly.

原文	???core.languages.en_GB???
文章編號	108037
期刊	Materials and Design
卷	182
DOIs	https://doi.org/10.1016/j.matdes.2019.108037
出版狀態	已出版 - 15 11月 2019

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10.1016/j.matdes.2019.108037

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abstract = "During friction surfacing (FS), argon is commonly used as shielding gas for avoiding oxidation, and the resistance of FSed 316L coatings to pitting corrosion is normally improved by the fragmentation of MnS inclusions. In the present study, it is demonstrated that the resistance of the FSed coating to pitting corrosion could be further improved using strengthened forced convection (SFC) with argon shielding. Restoration and further growth of dynamically recrystallized grains under SFC relieve the elastic strain in {111} grains, decrease the dislocation density, and hence reduce the metastable pit initiation probability effectively and suppress the stable pit transition susceptibility slightly.",

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T1 - Strengthened forced convection – A novel method for improving the pitting corrosion resistance of friction-surfaced stainless steel coating

AU - Guo, D.

AU - Kwok, C. T.

AU - Chan, S. L.I.

PY - 2019/11/15

Y1 - 2019/11/15

N2 - During friction surfacing (FS), argon is commonly used as shielding gas for avoiding oxidation, and the resistance of FSed 316L coatings to pitting corrosion is normally improved by the fragmentation of MnS inclusions. In the present study, it is demonstrated that the resistance of the FSed coating to pitting corrosion could be further improved using strengthened forced convection (SFC) with argon shielding. Restoration and further growth of dynamically recrystallized grains under SFC relieve the elastic strain in {111} grains, decrease the dislocation density, and hence reduce the metastable pit initiation probability effectively and suppress the stable pit transition susceptibility slightly.

AB - During friction surfacing (FS), argon is commonly used as shielding gas for avoiding oxidation, and the resistance of FSed 316L coatings to pitting corrosion is normally improved by the fragmentation of MnS inclusions. In the present study, it is demonstrated that the resistance of the FSed coating to pitting corrosion could be further improved using strengthened forced convection (SFC) with argon shielding. Restoration and further growth of dynamically recrystallized grains under SFC relieve the elastic strain in {111} grains, decrease the dislocation density, and hence reduce the metastable pit initiation probability effectively and suppress the stable pit transition susceptibility slightly.

KW - Austenitic stainless steel

KW - Dynamic recrystallization

KW - Friction surfacing

KW - Pitting corrosion

KW - Shielding gas

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DO - 10.1016/j.matdes.2019.108037

M3 - 期刊論文

AN - SCOPUS:85069558829

SN - 0264-1275

VL - 182

JO - Materials and Design

JF - Materials and Design

M1 - 108037

ER -

Strengthened forced convection – A novel method for improving the pitting corrosion resistance of friction-surfaced stainless steel coating

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