[email protected] . 26 August 2022 27 March 2023 27 March 2023 © 2023, AMPP 2023 corrosion mechanisms electrochemistry martensitic stainless steels molybdenum sour environment thin films O il and gas wells are highly corrosive environments because it contains hydrogen...

...Kyono Yasuda; Nobuyuki Ishikawa; Taishi Fujishiro; Takuya Hara; Eiji Tada; Mitsuo Kimura NACE MR0175/ISO 15156 provides the severity of a sour environment defined as a function of pH and H₂S partial pressure for sulfide stress cracking. Although hydrogen-induced cracking (HIC) is also...

... balance gas. For SSC direct visualization, we developed an in situ system applicable to a sour environment. The long working distance lens (VH-ZST, KEYENCE ^† , 15 mm in high-magnification mode) of the digital microscope was shielded from exposure to small amounts of corrosive gases in the draft...

... © 2021, AMPP 2021 carbon steel corrosion hydrogen sulfide sour environment sulfide film temperature H ₂S corrosion is a vital obstacle that needs be resolved in the oil and gas sector because iron/steel is corroded in solution-containing H₂S; some failures...

.... Their grades are positioned between modified-13Cr stainless steel and duplex stainless steels like 22Cr or 25Cr. Sulfide stress cracking (SSC) in a mild sour environment is one of the most important issues for those materials designated for commercial use. It is necessary to make clear the applicable range...

...Nayef M. Alanazi; A.M. El-Sherik; A.H. Rasheed; Saleh H. Amar; Marwan R. Dossary; Moayyad N. Alneemai The inhibition of under deposit corrosion (UDC) of steel X-60 (UNS K03006) was studied under field-collected sludge deposits in a simulated sour environment by means of linear polarization...

... = 1.54×10⁻⁶ KPa⁻¹ and z₂ = 4.69×10⁻¹¹ Pa⁻¹. From Equations (3) through (5) , the hydrogen pressure in the crack cavity can be obtained by solving the following non-linear equation: hydrogen-induced corrosion hydrogen sour environment...

... currents and coupled potentials increased rapidly upon mechanical scratching, immediately started to decrease, and finally returned to the values before scratching in sweet and sour environments. Therefore, an increase in the galvanic corrosion rate caused by scratching was negligibly small for the long...

...H. Asahi; M. Ueno; T. Yonezawa It is important to systematically assess the severity of a sour environment for susceptibility to sulfide stress cracking (SSC). A prediction system was established based upon SSC as a phenomenon of hydrogen embrittlement (HE). The content of H entering into steel...

... susceptibility in NACE TM01-77 solution. Localized corrosion resistance of Ti alloys in S-containing sour environment was superior to that of Ni-base Alloy C276. The stability of TiO₂ film in sour environment containing elemental sulfur was discussed on the basis of the potential-pH diagram of Ti...

...T. Kudo; H. Tsuge; T. Moroishi Effect of nickel and nitrogen contents on stress corrosion cracking (SCC) of 22%Cr–3%Mo-base duplex stainless steel was investigated in simulated sour environments with respect to both the base metal and the heat-affected zone (HAZ) of welding. The threshold stress...

... not occur at all alloys tested in NACE solution with iron coupling. The hydrogen embrittlement of Alloy C-276 (UNS ⁽¹⁾ N10276) is discussed later. December 1988 National Association of Corrosion Engineers 1989 elemental sulfur hydrogen embrittlement Ni-base alloys sour...