Ara
Toplam kayıt 250, listelenen: 31-40
Effects of alcohols on the corrosion of aluminum alloys in 1 N HCl solution. Part II
(Pleiades Publishing, Ltd, 2008)
The use of alcohols as cathodic inhibitors in HCl solution results in a negative shift of corrosion potential (Ecor). The alcohols concentration of 20 mM, was shown to be the best one. EDX analyses of the alloys showed ...
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 ...
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. ...
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 ...
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 ...
Effect of H2S and CO2 on Cement/Casing alloy interface corrosion integrity for cold climate oil and gas well applications
(The Electrochemical Society, 2016)
A study has been carried out to investigate sweet and sour corrosion at the cement-casing interface for offshore oil and gaswells in cold climate. The test solution chemistry was determined by sampling pore water from ...
Özgürlüğün bir imkânı olarak belirsizlik: Bauman bağlamında eleştirel bir değerlendirme
(EKEV, 28.03.2019)
Özgürlük insanlık tarihinin en önemli problemlerinden birisidir. Pek çok farklı tanımlara
sahiptir. Özgürlük genellikle bazı kavramlar veya kavram setleri ile birlikte tartışılır.
Bunlar güvenlik, kesinlik, standartlar, ...
Leibniz'de bilginin hayırseverliği olarak adalet
(2016)
Leibniz'e göre biz insanlar dışındaki tüm varlıklar yalnızca Doğa’nın Alanı’na girer; biz
insanlar ise çift uyruk avantajına sahibiz ve aynı zamanda İnâyet Alanı’nın yurttaşlarıyız.
Böylelikle bizler Tanrı ile özel ...
Asymptotically ... equivalence of double sequences of sets defined by modulus functions
(2019)
Fast (1951) and Schoenberg (1959), independently, introduced the concept of statistical convergence and many authors studied this concept. Mursaleen and Edely (2003) extended this concept to the double sequences. The idea ...
Asymptotically lacunary I-invariant equivalence of sequences defined by A modulus function
(2018)
In this paper, we introduce the concepts of strongly asymptotically lacunary ideal in-
variant equivalence, f-asymptotically lacunary ideal invariant equivalence, strongly f-asymptotically
lacunary ideal invariant ...