Results 121 to 130 of about 496 (154)

Characterization and boriding kinetics of C38 carbon steel: effect of the process time

Matériaux & Techniques, 2012
This present work investigates the effect of the time duration on the boriding kinetics of C38 steel. The pack-boriding treatment was carried out at 1000 °C for 0.5, 1, 2, 4 and 8 h using a powdery mixture consisting of 5%B4 C, 5%NaBF4 and 90% SiC.
Z. Nait Abdellah, M. Keddam, R. Chegroune, O. Azouani, O. Allaoui, A. Elias   +5 more
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Some new bipyrazole derivatives as corrosion inhibitors for C38 steel in acidic medium

Research on Chemical Intermediates, 2012
Three new bipyrazole derivatives, ethyl 5,5′-dimethyl-1′H-1,3′-bipyrazole-4-carboxylate (Bip1), 1,1′,5,5′-tetramethyl-1H,1′H-3,3′-bipyrazole (Bip2), and 3-(bromomethyl)-5,5′-dimethyl-1′H-1,3′-bipyrazole (Bip3), have been synthesized and used as additives to protect C38 steel from corrosion in aerated 1 M HCl solution, using the various corrosion ...
H. Zarrok, H. Oudda, A. El Midaoui, A. Zarrouk, B. Hammouti, M. Ebn Touhami, A. Attayibat, S. Radi, R. Touzani   +8 more
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Use of Omeprazole as Inhibitor for C38 Steel Corrosion in 1.0 M H3PO4 Medium

Journal of Failure Analysis and Prevention, 2020
The importance of the use of various drugs as corrosion inhibitors has developed. In this context, the corrosion inhibition of C38 steel in 1.0 M H3PO4 medium by omeprazole has been evaluated by weight loss tests, potentiodynamic polarization and electrochemical impedance spectroscopy measurements.
Youssra El Hamdouni, Fatima Bouhlal, Hossam Kouri, Mohammed Chellouli, Mohammed Benmessaoud, Abdelouahed Dahrouch, Najoua Labjar, Souad El Hajjaji   +7 more
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Inhibitive effect of imidazopyridine derivative towards corrosion of C38 steel in hydrochloric acid solution

Research on Chemical Intermediates, 2012
The effect of adding 2-phenylimidazo[1,2-a]pyridine-3-carbaldehyde derivative named (P2), newly synthesized on the electrochemical behavior of C38 steel in molar hydrochloric acid was investigated by using the weight-loss method, potentiodynamic polarization, and electrochemical impedance spectroscopy (EIS) measurements.
A. Ghazoui, R. Saddik, B. Hammouti, A. Zarrouk, N. Benchat, M. Guenbour, S. S. Al-Deyab, I. Warad   +7 more
openaire   +1 more source

Corrosion Inhibition of C38 Steel in 1M HCl Media by Alkaloidic Extract from Xylopia Frutescens Amazonian Tree

ECS Transactions, 2015
The use of Xylopia frutescens extract as a C38 steel corrosion inhibitor in 1 M HCl solution was investigated by potentiodynamic polarization and electrochemical impedance spectroscopy (EIS) methods. Potentiodynamic polarization curves indicated that Xylopia frutescens extract behaves as mixed-type inhibitor.
Chevalier, Maxime, Roos, Christophe, Tomi, Félix, Sutour, Sylvain, Lebrini, Mounim   +4 more
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Effect of some tripodal bipyrazolic compounds on C38 steel corrosion in hydrochloric acid solution

Journal of Applied Electrochemistry, 2010
The corrosion inhibition of C38 steel in molar HCl by N,N-bis[2-(3,5-dimethyl-1H-pyrazol-1-yl)ethyl]buthylamine (P1) and 5-{N,N-bis[2-(3,5-dimethyl-1H-pyrazol-1-yl)ethyl] amino} pentanol (P2) has been investigated at 308 K using electrochemical and weight loss measurements.
B. Zerga, A. Attayibat, M. Sfaira, M. Taleb, B. Hammouti, M. Ebn Touhami, S. Radi, Z. Rais   +7 more
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INVESTIGATION OF ADSORPTION AND INHIBITIVE EFFECT OF CALIXARENE DERIVATIVE NEWLY SYNTHESIZED TOWARDS C38 STEEL IN MOLARHCl [PDF]

Surface Review and Letters, 2009
The focus of this study is to synthesize a new calixarene derivative namely calix[6]arene (C21) and to test its performance as corrosion inhibitor of C38 steel in molar HCl at 308 K. Polarization and weight loss measurements were used. Weight loss tests show that C21 retards until to stop corrosion phenomenon at 5 × 10-5M .
R. SOUANE, M. KADDOURI, M. BOUKLAH, N. CHERIAA, B. HAMMOUTI, J. VICENS   +5 more
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Inhibition effect of horehound (Marrubium vulgare L.) extract towards C38 steel corrosion in HCl solution

Research on Chemical Intermediates, 2012
The corrosion inhibition properties of horehound (Marrubium vulgare L.) extract (HE) in 1 M hydrochloric acid medium was carried out using electrochemical methods (polarization curve and electrochemical impedance spectroscopy). Experiments were performed by concentration of the inhibitor and temperature effect.
Dris Ben Hmamou, Rachid Salghi, Abdelkader Zarrouk, Hassan Zarrok, Omar Benali, Mohamed Errami, Belkheir Hammouti   +6 more
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Understanding Corrosion Inhibition of C38 Steel in HCl Media by Omeprazole: Insights for Experimental and Computational Studies

Journal of Failure Analysis and Prevention, 2020
The influence of omeprazole on C38 steel corrosion in HCl solutions (1, 3, 5 M) was evaluated by weight loss and electrochemical techniques. Density-functional theory (DFT) and molecular dynamic (MD) simulations were also used. The weight loss experiment shows that the maximum inhibition efficiency achieved a value of 98.36% in the presence of 5 × 10−3 
Kouri Hossam, Fatima Bouhlal, Lina Hermouche, Imane Merimi, Houda Labjar, Abdelkarim Chaouiki, Najoua Labjar, Serghini-Idrissi Malika, Abdelouahed Dahrouch, Mohamed Chellouli, Belkheir Hammouti, Souad El Hajjaji   +11 more
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Synthesis and evaluation of bipyrazolic derivatives as inhibitors of corrosion of C38 steel in molar hydrochloric acid

Research on Chemical Intermediates, 2012
Methyl 2-(bis((3,5-dimethyl-1H-pyrazol-1-yl)methyl)amino) acetate, BT36, and methyl 2-(bis((3,5-dimethyl-1H-pyrazol-1-yl)methyl)amino)-3-(1H-indol-3-yl)propanoate, BT 43, have been synthesized. Investigation by weight-loss measurement and use of electrochemical techniques revealed the compounds are very effective inhibitors of corrosion of C38 steel in
N. Missoum, A. Guendouz, N. Boussalah, B. Hammouti, A. Chetouani, M. Taleb, A. Aouniti, S. Ghalem   +7 more
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