... supports the validity of the 0.05 psia (0.345 kPa) H2S limit. ORIGINS OF THE 0.05 PSIA (0.345 kPa) H2S PARTIAL PRESSURE THRESHOLD During the early investigations into understanding SSC, many parameters were investigated to increase the understanding the cracking susceptibility of materials in oil and gas...

... Abstract This paper elaborates on a method previously reported that characterized a materials susceptibility to hydrogen embrittlement in a seawater environment under CP by monitoring the crack growth rate of ASTM (1) E1820 1 pre-cracked CT specimens at various constant stress intensity (K...

...16887 Insights Into Hydrogen Embrittlement (HE) Susceptibility of Martensitic Steels Using Finite Element Analysis (FEA) And Experiments. Tuhin Das Salim V. Brahimi Department of Materials Engineering, McGill Department of Materials Engineering, McGill University University Montreal, Quebec, H3A...

... the hydrogen embrittlement resistance of three different aging conditions of N07718. The interaction of hydrogen with the microstructure has been evaluated by means of hydrogen embrittlement susceptibility tests and structural characterization by neutron diffraction and small-angle neutron scattering technique...

... tensile test under cathodic charging in simulated deep sea water was used to investigate the influence of the achieved superduplex microstructures on the susceptibility to hydrogen induced stress cracking (HISC). No effect of centerline intermetallic stringers (up to 0.08% of s-phase) on HISC...

... ABSTRACT Slow strain rate test and rising displacement fracture toughness test were performed to evaluate hydrogen embrittlement of three heats of precipitation hardened UNS N07718 nickel alloys in 3.5wt% NaCl, under cathodic polarization at low temperature 4.4°C (40°F). The susceptibility...

... resulting from unique manufacturing process and subsequent heat treatment may alter the hydrogen intake and transport process, then eventually affect the susceptibility to hydrogen embrittlement. The susceptibility to hydrogen embrittlement was investigated on different build orientations of AM 718 by slow...

... ABSTRACT In this paper, the hydrogen induced stress cracking (HISC) susceptibility of 25Cr duplex stainless-steel tubulars produced through hot extrusion with- and without subsequent cold drawing, forging and centrifugal casting have been examined. Two different test methods have been used; i...

..., there is still no clear image to describe how the impurities affect corrosion due to very limited database and some controversial results. More importantly, there is a serious concern on the stress corrosion cracking (SCC) susceptibility of the pipeline because of the presence of corrosive agents and high...

... ABSTRACT The evaluation of the susceptibility of corrosion-resistant alloys (CRAs) to stress corrosion cracking (SCC) in oil and gas production environment typically is done using several methods involving statically loaded samples or slow strain rate testing. This paper demonstrated the use...

... of drillstring components. To date the majority of the research work has been conducted to characterize the pitting susceptibility of CrMn-stainless steels under static conditions. Little attention, however, has been paid to the effect of shear stresses introduced by the flow of the drilling fluid on the pitting...

... ABSTRACT Two commonly used aluminum alloys, namely 5083 and 6061, in fabrication of Aluminum Plate Heat Exchangers (APHE) were tested under four-point bending at different volumes of mercury and stress to measure their susceptibility to liquid metal embrittlement (LME) by mercury. The test...

... behavior suggests that the 725 exhibited the highest susceptibility, while 955 and 945X appeared to exhibit similar fatigue crack growth rate behavior. A static crack growth rate of 10 -6 mm/s (under constant K conditions) was obtained at 50ksivin (55MPavm) on 725, while it required K values of about...

... in environments that contain H 2 S, particularly in relation to the susceptibility to sulfide stress corrosion cracking (SSC) assisted by H 2 S. The objective of the study is to evaluate the effects of temperature, H 2 S, and Cl - concentration on the pitting onset of pitting and the likelihood of SSC. Using...

... ABSTRACT This paper reports an approach towards studying the susceptibility of materials to hydrogen embrittlement of several yield strength levels of ASTM ( 1 ) A320L7 & L43 grade carbon alloy material used for bolting 1 . The test method used is based on ASTM E1820 using pre-cracked...

... (by avoiding continuous, or semi-continuous grain boundary networks and avoiding the most damaging form of delta phase - acicular platelets). oilfield chemistry H2S management Susceptibility nickel alloy Production Chemistry Corrosion Management resistance texas 77084 hydraulic fracturing hac...

..., there is little agreement on service limits when exposed in environments that contain H 2 S, particularly in relation to the susceptibility to sulfide stress cracking (SSC). This paper presents a review of published literature regardingsusceptibility to SSC of super martensitic stainless steels in production...

... ABSTRACT Exposure temperature has a known effect on sulfide stress cracking (SSC) in low alloy steels where elevated temperatures permit the use of oil country tubular goods (OCTG) in sour conditions that would not be survivable at lower temperatures. In order to assess SSC susceptibility...

... in fracture toughness in the environment in relation to air while alloy UNS N07716 and N07725 showed the most susceptibility to the environment with the lowest performance. INTRODUCTION The Oil and Gas industry has turned to Nickel alloys, especially precipitation hardened (PH) Nickel alloys, for subsea...

... is theorized to emanate from the evolution of hydrogen gas generated by cathodic protection systems in seawater, with several factors possibly contributing to a material’s susceptibility. 4 A joint industrial project (JIP) was formed in 2005 out of Norway to investigate the susceptibility to Hydrogen Induced...