Strain-induced Reactivation of Corrosion Pits in Austenitic Stainless Steel

作者: F.A. Almuaili , S.A. McDonald , P.J. Withers , A.B. Cook , D.L. Engelberg

DOI: 10.1016/J.CORSCI.2017.05.023

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摘要: Abstract The reactivation of a corrosion pit under the synergetic effect strain and electro-chemical polarisation has been observed in type 304L stainless steel using X-ray computed tomography. process was associated with formation new pit, directly adjacent to pre-existing pit. Pit growth kinetics were estimated, revealing an increase diffusivity parameter ( D eff Δ C ) from 3.0 × 10 −8  mol cm −1  s 4.5 × 10 application strain, indicating higher metal dissolution rates. Applied resulted fractured lacy covers, its on is discussed.

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