On the effect of pit shape on pitted plates, Part I: Tensile behavior ...
2021年9月15日 · In this paper, the effect of pit shape on the tensile behavior of pitted plates is studied experimentally and numerically. Material tensile tests were conducted on small plate specimens made of steels of different strengths with/without artificial corrosion pits, which were utilized to verify the numerical models for nonlinear analyses.
Revealing the growth kinetics of atmospheric corrosion pitting in ...
2020年10月16日 · The irregular pit shapes along with volume loss trends indicate that pits grew under severe cathodic limitation, likely near conditions on the edge of passivity 39,40,41. In this study, the...
Effects of corrosion pits on the combined hardening behavior of …
2024年10月11日 · The effects of the degree of pit volume loss (DOV), pit shape, pit diameter-to-depth ratio(d/h), pit quantity, and distribution on the elastic modulus, yield strength (initial yield surface radius), and yield plateau length of low-carbon steel are investigated through monotonic tensile and cyclic loading tests on steel plates with pits ...
Computational modeling of pitting corrosion - De Gruyter
These models start from mathematical formulations for electro-chemo-mechanical phenomena and use various numerical methods to solve for the progression of the pitting process in more detail: the evolution of pits’ shape and morphology, the concentration of different chemical species inside and outside of the pit, the electric potential ...
Probabilistic modelling of pitting corrosion and its impact on …
2022年7月1日 · All probabilistic models aim to predict the depth of corrosion and hence avoid a perforation of steel components. However, in case of stress concentrations due to pitting corrosion, the pit width, which determines the shape of the pit, is a key factor.
On the effect of pit shape on pitted plates, Part I: Tensile behavior ...
2021年9月15日 · The pit shape significantly affects the ultimate strength of pitted structures, likely causing a strength variation more than 20% in a naturally pitted hull plate.
On the effect of pit shape on pitted plates, Part II: Compressive ...
The effect of pit shape on compressive behavior and ultimate strength of pitted plates was studied, which was linked with the stress interaction between pits. A modelling method based on stochastic simulation was proposed to generate random pitting damage based on limited statistical corrosion data, which could reflect all aspects of the random ...
On the effect of pit shape on pitted plates, Part II: Compressive ...
2021年9月1日 · This paper presents a comprehensive experimental and numerical study on the effect of pitting features such as pit shape and depth, pitting distribution and intensity on the structural...
Representation of the pit shapes. a Elliptical, b narrow deep, c...
The approach systematically identifies several surface-based corrosion features, enabling full spatial characterisation of pitting parameters, including pit density, pit size, pit depth as...
On the effect of pit shape on pitted plates, Part I: Tensile behavior ...
The aim of the present paper is to investigate the ultimate strength characteristics of plate elements with pit corrosion wastage under axial compressive loads. Collapse tests on a box column type of … Expand