Güncel Gönderiler: Fen-Edebiyat Fakültesi
Toplam kayıt 280, listelenen: 241-260
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Corrosion of 13Cr steel at the Cement/Casing interface in CO2/H2S environments at 4, 85 and 200 °C
(Nace International, 2018)A study was carried out to investigate corrosion at the cement/casing interface for 13Cr casing steel. Cement simulated pore solution (CSPS) was developed by exposing cement pieces to 5% NaCl at 100 °C and 10 MPa in ... -
Effects of CO2 and H2S on corrosion of martensitic steels in NaCl(aq) at low temperature
(Nace International, 2016)Corrosion studies were conducted for martensitic carbon steels in brine solutions at 4 °C and 10 MPa (1450 psi), which simulated the subsurface environments encountered in Arctic drilling. Three environments with a 5 % wt. ... -
Corrosion behavior of ultra-high strength drilling steel in alkaline brines containing hydrogen sulfide at high temperature
(Nace International, 2016)In-situ electrochemical measurements were used to study the sour corrosion of ultra-high strength low alloy carbon steel (UHSLA) in alkaline brines at 200 °C. The solutions were buffered with NaHCO3 / Na2CO3 / NaOH to pH ... -
Corrosion behavior of 13Cr casing steel in cement-synthetic pore solution exposed to high pressure CO2 and H2S
(The Electrochemical Society, 2015)As deeper wells drilled for oil and gas extraction encounter higher pressures, temperatures, and concentrations in the downhole environment, it becomes increasingly important to consider the integrity of the casing that ... -
The coating of hydroxyapatite ( HAP ) on 316L stainless steel and Ti6Al4V alloy use by Sol-Gel method
(Afyon Kocatepe Üniversitesi, 2010)In this research, hydroxyapatite (HAP) coatings have been coated on Ti6Al4V alloy and 316 L stainless steel substrates by sol-jel method. (NH4)H2PO4 is taken as P precursor and Ca(NO3)2.4H2O is taken as Ca precursor to ... -
XVIII. asrın sonlarında Mekke ve Medine’deki Su Vakıfları
(Afyon Kocatepe Üniversitesi, 2012)Osmanlı Devleti, Hicaz‟ı ilhak etmesinin ardından Kanuni döneminde Mekke ve Medine‟nin su ihtiyacının kesintisiz ve rahat karşılanması için büyük yatırımlar yapmıştır. Özellikle 1530 ve 1570 tarihinde Kanuni Sultan Süleyman ... -
Effect of alcohol on the corrosion of al alloys in 1 N H2SO 4 solution Part i
(Pleiades Publishing, Ltd, 2008)The aim of this paper is to examine the effects of alcohol (1-buten–3-ol-l, 2-methyl–3-butyn–2-ol, 3-methyl–2-buten–1-ol, 3-methyl–3-buten–1-ol, 3-methyl–1-pentyn–3-ol, 5-hexen–1-ol) on the corrosion of Al alloys. The ... -
Tertiary amine methacrylate based polymers as corrosion ınhibitors in hcl solution. Part II
(Pleiades Publishing, Ltd, 2019)In this study, the inhibitive performance of novel synthesised water-soluble of different molecular weight diblock copolymers of derivative methyl methacrylate (VB84, VB206, VB207, VB361, VB371,VB406) on the corrosion ... -
Effects of H2S and CO2 on Cement/Casing interface corrosion integrity for cold climate oil and gas well applications
(The Electrochemical Society, 2016)Low-temperature corrosion relevant to oil and gas wells was investigated. Casing cement was exposed to brine in contact with CO2 at 4 °C and 10 MPa. Pore water was extracted from wet cement using a die press, and a cement ... -
Asymptotically I_2-lacunary statistical equivalence of double sequences of sets
(Ilirias Publications, 2016)In this paper, we introduce the concepts of Wijsman asymptotically I_2-statistical equivalence, Wijsman strongly asymptotically I_2-lacunary equivalence and Wijsman asymptotically I_2-lacunary statistical equivalence of ... -
A generalization of asymptotically I-lacunary statistical equivalence of sequences of sets
(Mathematical Sciences and Applications E-Notes, 2016)This paper presents, for sequences of sets, generalize the concepts of Wijsman asymptotically strongly I-lacunary equivalence and Wijsman asymptotically strongly I-Cesàro equivalence by using p=(p_k) which is the sequence ... -
Corrosion inhibition of st37 steel in geothermal fluid by quercus robur and pomegranate peels extracts
(Pleiades Publishing, Ltd, 2015)Plant extracts have become important as an environmentally acceptable, readily available and renewable source of wide range of inhibitors. Tannins, a class of natural, non toxic and biodegradable polyphenolic compounds, ... -
The effect of polypyrrole and nickel + polypyrrole coatings on corrosion behaviour AISI 304 stainless steel
(Pleiades Publishing, Ltd, 2015)Polypyrrole (PPy) and nickel + PPy (Ni + PPy) coatings have been occured on AISI 304 stainless steel (304 SS) surface by cyclic voltammetry technique in aqueous oxalic acid solutions and as the supporting electrolytes was ... -
Corrosion behaviours of hydroxyapatite coated by biometic method of Ti6Al4V, Ti and AISI 316L SS substrates
(ACADEMIA ROMÂNĂ, 2012)Biomimetic method was used to obtain hydroxyapatite (HAP) coatings on Ti6Al4V, Ti and AISI 316L SS substrates. The solutions were prepared as 1.5xSBF and 3.0xSBF similarly to body fluid (SBF). Additionally, three different ... -
Corrosion and wear behaviors of boronized AISI 316L stainless steel
(Springer, 2013)In this study, the effects of a boronizing treatment on the corrosion and wear behaviors of AISI 316L austenitic stainless steel (AISI 316L) were examined. The corrosion behavior of the boronized samples was studied via ... -
Investigation of corrosion behaviors at different solutions of boronized AISI 316L stainless steel
(Springer, May 2013)In this study, corrosion behaviors of boronized and non-boronized AISI 316L stainless steel (AISI 316L SS) were investigated with Tafel extrapolation and linear polarization methods in different solutions (1 mol dm−3 HCl, ... -
Electrochemical polymerization of aniline on aluminum electrode from an oxalic acid and H2SO4 solutions
(Pleiades Publishing, Ltd, 2009)In this study, the polymerization of aniline on Al and Pt electrode was examined by cyclic voltammetry There had been reversible reaction on AI electrode. But on the other hand there had been irreversible reaction on Pt ... -
The examination of corrosion behaviors of HAP coated Ti implant materials and 316L SS by Sol-Gel method 1
(Pleiades Publishing, Ltd, 2011)In this research, hydroxyapatite (HAP) coatings have been produced on Ti, Ti6Al4V alloy and 316L stainless steel substrates by sol–gel method. (NH4) H2PO4 is taken as P precursor and Ca(NO3)2 4H2O is taken as Ca precursor ... -
The effect of 3-Methyl 1-Pentyn 3-ol on the corrosion of Al-Si-Cu alloys in acid solutions by using SEM, EDX and AAS
(Pleiades Publishing, Ltd, 2009)In this study, the effect of alloying elements on the corrosion of Al-Si-Cu alloys in H 2 SO 4 and HCl media content 3-methyl–1pentyn–3-ol (3mlp3ol) is investigated by using SEM, EDX, AAS. The effect of active elements and ... -
Formation of deposit and corrosion in Afyonkarahisar geothermal heating system [Afyonkarahisar jeotermal isitma sisteminde oluşan kabuklaşma ve korozyon]
(TMMOB jeoloji müdendisleri odası, 2008)The formation of deposit and corrosion, which was formed depending on the chemical composition of the geothermal water, is one of the most serious problems at the geothermal systems. In this study, ion chromotography (IC) ...
