Results 11 to 20 of about 733,397 (341)

Understanding pitting corrosion behavior of AZ91 alloy and its MAO coating in 3.5% NaCl solution by cyclic potentiodynamic polarization

open access: yesJournal of Magnesium and Alloys, 2021
The pitting corrosion behavior of AZ91 alloy before and after micro-oxidation treatment in 3.5% NaCl solution was investigated by cyclic potentiodynamic polarization (CPDP) and optical and SEM observations of corroded surfaces at different polarization ...
Yuxiang Liu   +3 more
semanticscholar   +1 more source

Corrosion Cases and Cause Analysis of Steam Tubine Low PressureCylinder blades for the Super - Critical Unit [PDF]

open access: yesCailiao Baohu, 2021
It was generally found that the low pressure cylinder blades of steam turbines had pitting corrosion during the overhaul of super-critical units. In order to analyze the causes of low pressure cylinder blades pitting corrosion, the corrosion products ...
HONG Xin-hua, LIU Hai-ling, LIU Xiang-liang
doaj   +1 more source

Numerical study on stress corrosion of X70 pipeline with the combined action of pits by sulfate-reducing bacteria and constant load

open access: yesMaterials & Design, 2023
The stress corrosion of pipeline steel was promoted by sulfate-reducing bacteria (SRB). However, the mechanism of SRB promoting stress corrosion is not clear. In this study, the effects of constant load, geometrical parameters and multi-pitting on stress
Dongxu Sun   +5 more
doaj   +1 more source

Pitting behavior of Ti-15-3 titanium alloy with different surface in salt spray studied using electrochemical noise

open access: yesJournal of Materials Research and Technology, 2021
Ti-15-3 titanium alloy has been widely used as a connecting material for aerospace structural parts. However, the non-uniform pitting caused by salt spray corrosion and the limitations of the conventional electrochemical techniques in predicting ...
Longfei Xie, Wenlong Zhou, Shiwen Zou
doaj   +1 more source

Seismic Fragility Analysis of Steel Pipe Pile Wharves with Random Pitting Corrosion

open access: yesBuildings, 2023
This paper investigates the seismic damage behavior of steel pipe pile wharves after pitting corrosion. The seismic intensity is treated as random, and a probabilistic strength model for randomly pitting corroded steel is utilized to assess the seismic ...
Xuan Zhao   +6 more
doaj   +1 more source

Research process of nondestructive testing pitting corrosion in metal material

open access: yesJournal of Hebei University of Science and Technology, 2017
Pitting corrosion directly affects the usability and service life of metal material, so the effective nondestructive testing and evaluation on pitting corrosion is of great significance for fatigue life prediction because of data supporting. The features
Bo ZHANG   +3 more
doaj   +1 more source

Case studies on the probabilistic characteristics of ultimate strength of stiffened panels with uniform and non-uniform localized corrosion subjected to uniaxial and biaxial thrust

open access: yesInternational Journal of Naval Architecture and Ocean Engineering, 2019
Based on Nonlinear Finite Element Analysis (NFEA), this paper focuses on the bi-axial ultimate strength of typical bottom structures under corrosion.
Jinju Cui, Deyu Wang, Ning Ma
doaj   +1 more source

Estimating Pitting Corrosion Depth and Density on Carbon Steel (C-4130) using Artificial Neural Networks

open access: yesJournal of Engineering, 2022
The purpose of this research is to investigate the impact of corrosive environment (corrosive ferric chloride of 1, 2, 5, 6% wt. at room temperature), immersion period of (48, 72, 96, 120, 144 hours), and surface roughness on pitting corrosion ...
rusul khalid al hamad, Nawal J. Hammadi
doaj   +1 more source

Improvement of the Corrosion Resistance by Addition of Ni in Lean Duplex Stainless Steels

open access: yesMetals, 2020
On newly developed Febalance-18Cr-7Mn-3Mo-3W-0.4N-(0.03, 0.57)Ni (in wt%) lean duplex stainless steels, the microstructure, element partitioning behavior, and resistance to pitting corrosion were investigated.
Heon-Young Ha   +4 more
doaj   +1 more source

Study of an Mg90Y7Zn3 alloy (WZ73) in sodium chloride solution — An analysis by correlated polarization and climate chamber testing

open access: yesEngineering Reports, 2022
In the present work, the corrosion behavior of a twin‐roll cast WZ73 magnesium alloy is investigated by potentiodynamic polarization and climate chamber tests in different sodium chloride solutions.
Robert Hornig   +3 more
doaj   +1 more source

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