Correlation between depassivation and repassivation processes determined by single particle impingement: Its crucial role in the phenomenon of critical flow velocity for erosion-corrosion

Li，L. L.1,2; Wang，Z. B.1; He，S. Y.1,3; Zheng，Y. G.1

2021-10-30

10.1016/j.jmst.2021.02.019

JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY   影响因子和分区

1005-0302

The correlation between depassivation and repassivation processes, which is significant in erosion-corrosion, was quantitatively investigated by single particle impingement tests at various flow velocities and impact angles. The results show that both repassivation and depassivation processes are associated with the kinetic energy of solid particle, and demonstrate that the repassivation is retarded by depassivation. This phenomenon probably results from the depassivation-induced microstructure evolution. On this basis, the dependence of critical flow velocity (CFV) for erosion-corrosion on the solid particle concentration and diameter is further theoretically predicted and experimentally verified. Accordingly, the crucial role of depassivation-repassivation in CFV phenomenon is further highlighted.

Depassivation-repassivation Erosion-corrosion Passive film Single particle impact Stainless steel

SCI ; EI

英语

其他

WOS:000697346300008

20211610219937

Erosion ; Flow velocity ; Kinetic energy ; Kinetics

Protection Methods:539.2.1 ; Fluid Flow:631 ; Classical Physics; Quantum Theory; Relativity:931

MATERIALS SCIENCE

2-s2.0-85104072088

Scopus

1.CAS Key Laboratory of Nuclear Materials and Safety Assessment,Institute of Metal Research,Chinese Academy of Sciences,Shenyang,110016,China
2.School of Materials Science and Engineering,University of Science and Technology of China,Shenyang,110016,China
3.Department of Physics,Southern University of Science and Technology,Guangdong,518055,China

Li，L. L.,Wang，Z. B.,He，S. Y.,et al. Correlation between depassivation and repassivation processes determined by single particle impingement: Its crucial role in the phenomenon of critical flow velocity for erosion-corrosion[J]. JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,2021,89:158-166.

Li，L. L.,Wang，Z. B.,He，S. Y.,&Zheng，Y. G..(2021).Correlation between depassivation and repassivation processes determined by single particle impingement: Its crucial role in the phenomenon of critical flow velocity for erosion-corrosion.JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,89,158-166.

Li，L. L.,et al."Correlation between depassivation and repassivation processes determined by single particle impingement: Its crucial role in the phenomenon of critical flow velocity for erosion-corrosion".JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY 89(2021):158-166.