.... UNS N08935 Pitting Corrosion Crevice Corrosion Seawater Chlorination Stainless Steels CRA UNS N06625 Nickel Base Alloys INTRODUCTION UNS N08935, Sanicro®35 ^† , is a new alloy with composition 35Ni–30Fe-27Cr-6.5Mo-0.28N, with a high pitting resistance equivalent number (PREN) of 52...

... as in the oil and gas industry, where resistance to pitting and crevice corrosion in chloride environments is required. Because of its high nickel content, alloy 825 CTP shows an outstanding resistance to stress corrosion cracking in aqueous and acidic chloride-containing solutions. Furthermore, as showed...

... as tubing and production casings for oil and gas fields, no scientific paper has mentioned their availability for seawater injection application. This paper reports the crevice corrosion data obtained in laboratory experiments under combined conditions of temperature and D.O. level simulating the expected...

... of the high sulfate simulants. The low sulfate simulant versions were developed as more conservative compositions to study crevice corrosion of 304H and 316L SS in the ETF wastes. Previous research has shown that sulfate behaves as a mild inhibitor of localized corrosion in stainless steels. ^{5 - 10}...

... given greater consideration in treated seawater systems where the dissolved oxygen concentration (DOC) is better controlled. Crevice corrosion exposure tests were conducted on nine (9) stainless steel alloys in synthetic seawater containing controlled DOC levels (100 ppb to 500 ppb range). The alloys...

... metallographic techniques. The results were used to develop a theory of the role of thermal fatigue cracking and crevice corrosion in SAC fissure initiation on the steamside surfaces of the superheater tubes and propagation through the tube walls. stress-assisted corrosion superheater tubes crevice corrosion...

... & Gas end-users. Indeed, hydrotesting and flooding operations are very often conducted to check the quality of the vessels and piping systems. In this case, seawater may cause pitting corrosion and crevice corrosion. Seawater is a very complex and corrosive environment due to its high amount...

...An alloy’s resistance to crevice corrosion is very important in many cases since it is difficult to avoid crevices in practical applications. Crevice corrosion might be of concern in heat exchangers between the tube and the tube sheet or in hydraulic and instrumentation tubing between the fitting...

.... The fractured strake bands were being used at various sea depths. Failure analyses were performed to determine the cause of these premature fractures; results indicated that crevice corrosion was the most probable cause. The analyses and key findings are documented in this paper. The observed rate of corrosion...

... piping and hydraulic & instrumentation tubing. Target industries are refineries, chemical and petrochemical plants and off- shore installations. This paper discusses Alloy35Mo, its properties, and a comparison with existing, competing grades. Stainless PRE pitting corrosion crevice corrosion...

...The resistance to crevice corrosion is of importance as it is one of the main corrosion risks in practical applications. Crevice corrosion can be difficult to observe until it is too late, as it is often hidden. Much work has been done developing standardized test methods representing extended...

... to that of type 316L, but the crevice corrosion resistance of 316L was better than that of LDSS. In potentiodynamic polarization test and electrochemical impedance spectroscopy (EIS) analysis, as the pH decreased, the breakdown potential of type 316L did not change largely. However, the breakdown potential...

... corrosion. However, the effect of active chlorine on crevice corrosion is still in need to get addressed. Crevice corrosion is the dissolution of metal due to the formation of tightly confined crevice region (approximately less than 0.5 mm) comprising aggressive electrolyte composition mainly due...

... ASTM G150 developed by K. Lund et al., using 3M magnesium chloride (MgCl2) instead of 1M sodium chloride (NaCl). CPT-values measured by the modified ASTM G150-method were shown to be 10-20 °C lower than when using 1M NaCl. Also, the crevice corrosion resistance of UNS S31266 was compared...

... concepts used to identify and resolve each type of corrosion. Amine Case Studies Chloride Induced Crevice Corrosion Uniform Corrosion Amine Analysis Inlet Separation Microbiologically Induced Corrosion Crevice Corrosion Pitting Corrosion Engineering Design Carbonic Acid Pump Cavitation Pump...

... was more resistant to crevice corrosion in dilute chloride solutions, at low temperatures. In concentrated chloride solutions, the crevice corrosion resistance of both alloys was similar. The heat treatment used for steam generator tubing, which produces carbide precipitation at grain boundaries, did...

... by case basis. There are variance of Nickel-based alloys with different critical pitting temperature (CPT) and despite its superior performance compared to many other corrosion-resistant alloys (CRA), some of these alloys are prone to localised corrosion such as pitting and crevice corrosion. As expected...

... selection as the demand for marine exhaust scrubbers grows to meet the new regulations. ASTM G48 marine scrubber stainless steels nickel alloys pitting corrosion crevice corrosion localized corrosion welding INTRODUCTION Due to new environmental regulations, substantial growth is expected...

... materials. The results show that SDSS material has better corrosion performance compared to other materials (316L, DSS) at various testing conditions. corrosion resistance alloy pitting crevice corrosion INTRODUCTION There are many other factors affecting the corrosion of steel in high chloride...

...Marine corrosion tubes crevice corrosion stainless steel INTRODUCTION Stainless steels and nickel-based alloys are used for a wide range of chloride-containing electrolytes in different industrial applications. The corrosion resistance of these alloys is due to the formation of a stable passive...