نتایج جستجو برای: Mild steel

تعداد نتایج: 196266  

Journal: :iranian journal of analytical chemistry 2015
nasrin soltani

the corrosion inhibition characteristics of two synthesized schiff bases, namely n, n´-bis(2-hydroxy-6-nitrobenzaldehyde) benzidine  and n, n´-bis(salysylaldehyde) benzidine, on the mild steel corrosion in 2.0 m hydrochloric acid have been investigated by weight loss, potentiodynamic polarization and electrochemical impedance spectroscopy techniques. these studies were carried out at different ...

2017
J. Chen Ju Chen Ben Young

This paper presents the mechanical properties of high strength structural steel and mild structural steel at elevated temperatures. Mechanical properties of structural steel at elevated temperatures are important for fire resistant design of steel structures. However, current design standards for fire resistance of steel structures are mainly based on the investigation of hot-rolled carbon stee...

2012
Sunil Patidar Abhishek Jain Dushyant Singh

This work presents the effect of various wear environments like 20% soil & 80% sand and 40% soil & 60% sand on as received and carburized mild steel sample at different load like 75N, 200N & 375N and at different tempering temperature like 200oC, 250oC & 300oC. The mild steel sample was carburized at 950oC. The heat treatment after carburization has been acknowledge that at some instant it impr...

2003
Milan J. Jolley M. J. Jolley

The corrosion of steel reinforcement in an aging highway infrastructure is a major problem currently facing the transportation engineering community, in particular bridge engineers. In the United States, maintenance and replacement costs are measured in billions of dollars. Further, the use of deicing salts has resulted in steady deterioration of bridge decks due to corrosion. These concerns ha...

2016
A. Jayanthi K. Venkatramanan K. Suresh Kumar

An attempt made to optimize the operating parameters involved in an autogenous pulsed Nd: YAG laser welding process of similar and dissimilar combinations of butt joint of 2 mm thick 316 L stainless steel and mild steel. Influence of prominent laser welding parameters such as average peak power, defocus position, spot position, and shielding gas were investigated for welded joints considered. T...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تهران 1378

با استفاده از روشهای پلاریزاسیون تافل و طیف بینی امپدانس الکتروشیمیایی، اثر بازدارندگی دو ماده شیمیایی آلی به نام های اسیدتانیک و اسیدگالیک که جزء گروه تانن ها می باشد، با و بدون اضافه کردن تعدادی ممانعت کننده معدنی نظیر نیتریت ، مولیبدات و پلی فسفات برخوردگی فولاد نرم (mild steel) در محیط آب برج خنک کننده با ph قلیایی (حدود 8 ) بررسی شده است . اضافه کردن اسید گالیک به محلول حاوی یون نیتریت و م...

2015
Jonnie N. Asegbeloyin Paul M. Ejikeme Lukman O. Olasunkanmi Abolanle S. Adekunle Eno E. Ebenso

The corrosion inhibition activity of a newly synthesized Schiff base (SB) from 3-acetyl-4-hydroxy-6-methyl-(2H)-pyran-2-one and 2,2'-(ethylenedioxy)diethylamine was investigated on the corrosion of mild steel in 1 M HCl solution using potentiodynamic polarization and electrochemical impedance spectroscopic techniques. Ultraviolet-visible (UV-vis) and Raman spectroscopic techniques were used to ...

2012
Hui Cang Wenyan Shi Jinling Shao Qi Xu

The inhibition for the corrosion of mild steel in sulphuric acid solution by the extract of Stevia rebaudiana leaves has been studied using electrochemical impedance spectroscopy (EIS) and potentiodynamic polarization techniques. Inhibition was found to increase with increasing concentration of the leaves extract. The effect of temperature on the corrosion behavior of mild steel in 0.5M H2SO4 w...

2015
T. SATHIYAPRIYA

The inhibitive action of alkali extract human hair extract (Bio waste) against the corrosion of mild steel (98.58%) in solutions of nitric acid has been studied using potentiodynamic polarization and electrochemical impedance spectroscopy (EIS). At inhibitor concentration range (0.004 % v/ v to 0.1% v/v) in 0.3 M HNO3acid, the results showed that these compounds suppressed both cathodic and ano...

Journal: :Science and technology of advanced materials 2008
Florica Simescu Hassane Idrissi

We outline the ability of zinc phosphate coatings, obtained by chemical conversion, to protect mild steel rebars against localized corrosion, generated by chloride ions in alkaline media. The corrosion resistance of coated steel, in comparison with uncoated rebars and coated and uncoated steel rebars embedded in mortar, were evaluated by open-circuit potential, potentiodynamic polarization, cro...

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