نتایج جستجو برای: corrosion prediction models

تعداد نتایج: 1138785  

2014
Guang-Ling Song

Corrosion is the process of degradation or failure of a material resulting from a chemical reaction between the material and its surrounding environment. It is an indispensible research area in material science and engineering, because corrosion resistance characterizes the stability or durability of a material, which is one of the most important material performances in application. Compared w...

Journal: :journal of reproduction and infertility 0

background: infertile couples are faced with problems that affect their marital life. infertility treatment is expensive and time consuming and occasionally isn’t simply possible. prediction models for infertility treatment have been proposed and prediction of treatment success is a new field in infertility treatment. because prediction of treatment success is a new need for infertile couples, ...

2006
E A Birt L D Jones L J Nelson

The repair and rectification of corrosion damage continues to be a major factor in the life cycle costs of aircraft. The present approach to corrosion control is based on ‘Find-and-fix’. Once an area of corrosion is found, rectification is carried out as soon as possible. This often involves the blending away of corrosion damage and the re-protection of the blended area. Where the depth of corr...

2006
Gregory J. Kacprzynski David S. Muench

Corrosion, stress-corrosion cracking or corrosion-initiated fatigue significantly impact maintenance downtime and structural life limitations of aging aircraft. Both legacy and new air platforms such as the Joint Strike Fighter (JSF), realize that corrosion will likely continue to be a structural challenge that warrants a structural health management system to provide accurate, cost effective a...

2009
Lingyu Yu

In this paper, we present a multiple mode sensing methodology to detect active corrosion in aluminum structure utilizing the broadband piezoelectric wafer active sensors. This method uses ultrasonic Lamb wave complemented with the electromechanical impedance measurement to detect, quantify, and localize the corrosion progression in plate-like structures. The ultimate objective of this research ...

1999
David Robertson

E M A I L : a m p t i a c @ i i t r i . o rg Introduction The Air Force Corrosion Prevention and Control Office, located at Robins AFB, GA, and operated by the Air Force Research Laboratories’ Materials Directorate recently achieved a major milestone in demonstrating an aircraft corrosion prediction program. The AF Corrosion Prevention and Control Office accomplishes its mission by ensuring Air...

2009
Anees Abdullah Khadom Anees A. Khadom S. Yaro Amir H. Kadum

Problem statement: The effect of different temperatures and acid concentrations on the corrosion of low carbon steel in hydrochloric acid were addressed in this study. Approach: The effect of temperature was explained by application of Arrhenius equation and transition state theory, while the acid concentration effect was explained using reaction kinetic equations. The combined effect of temper...

2013
Z. JANČÍKOVÁ

Z. Jančíková, O Zimný, P. Koštial, Faculty of Metallurgy and Material Engineering, VŠB – Technical University of Ostrava, Czech Republic The contribution deals with the use of artifi cial neural networks for prediction of steel atmospheric corrosion. Atmospheric corrosion of metal materials exposed under atmospheric conditions depends on various factors such as local temperature, relative humid...

2017
Yulia M. Panchenko Andrey I. Marshakov

Dose-response functions (DRFs) developed for the prediction of first-year corrosion losses of carbon steel and zinc (K₁) in continental regions are presented. The dependences of mass losses on SO₂ concentration, K = f([SO₂]), obtained from experimental data, as well as nonlinear dependences of mass losses on meteorological parameters, were taken into account in the development of the DRFs. The ...

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