... 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...

... Standard 02-886 and offers significant scope for design engineers with much higher mechanical properties, increased toughness and increased internal integrity. It provides the findings of a four year corrosion program with comparisons against 26 other alloys involving a range of copper alloys, nickel...

... low Charpy V-notch values such as 4 Joules (3 ft-lbs) at temperatures where the notch toughness is expected to be higher than 54 Joules (40 ft-lbs). Typically these steels are exempt from impact testing for minimum design temperatures -29°C (-20°F) per ASME B31.3 for thicknesses up to 12.7 mm (0.5...

... ABSTRACT Material mechanical property data including fracture toughness help address potential integrity threats such as material loss through corrosion, stress corrosion cracking (SCC), and fatigue. In-the-ditch (ITD) nondestructive evaluation (NDE) of mechanical properties has expanded...

... metals & mining Publication Division ferrite manuscript acceptable toughness foundry lateral expansion Houston heat treatment condition hold time permission toughness anneal water quench texas 77084 carbide phase ASTM ABSTRACT The influence of ferrite and heat...

... Walker Industrial Park Blackburn, UK ABSTRACT The strong detrimental influence on both toughness and corrosion resistance of intermetallic particles (IMP) in the microstructure of duplex stainless steels is well known. Toughness and corrosion testing along with microstructural examination of samples has...

... manuscript resistance texas 77084 Houston specimen geometry Thickness metallic material specimen toughness validity criteria fracture toughness test method nace tm0177 initiation toughness ABSTRACT Available fracture toughness (FT) test methodologies are reviewed in this publication...

... with immersion of AISI(1)4130 steel heat treated to strengths ranging from 896 MPa to 1862 MPa (121 268 ksi) in an aqueous sodium chloride solution saturated with air. He reported that an optimum combination of strength and fracture toughness is required to improve the corrosion-fatigue resistance...

..., poor cooling of duplex steels through this temperature range or repeated excursions in to this temperature range can result in its formation. Alpha prime dramatically reduces impact toughness and increases susceptibility to hydrogen induced stress corrosion cracking due to cathodic protection. However...

... welded samples of seamless pipes were also tested. Peened material showed a 10 to 15% improvement in the threshold stress to initiate HISC. The paper also discusses an Advanced Forging Process (AFP) production route, recently developed to provide both increased notch toughness at low design...

... the in-air values and is substantially lower in the presence of H 2 S. The strain to failure was related to the diffusible hydrogen concentration measured from hydrogen flux measurements. Fracture toughness tests were performed using rising displacement tests the results indicate that the initiation...

... cross Publication Division Wellbore Design selection texas 77084 hydraulic fracturing disadvantage precise measurement permission structural integrity associate corrosion morphology toughness maximum depth titanium Houston verification assessment Significance different pertinent...

... Abstract Super Duplex Stainless Steels (SDSS) are utilised extensively by the oil and gas industry offshore, on fixed platforms, production vessels and subsea developments because they provide an excellent combination of; a) Strength, weldability, fracture toughness and structural integrity...

.... It is patent pending and is being submitted for inclusion in NACE MR0175/ISO 15156. The UNS N09955 alloy is produced at strength levels of 827 MPa (120 ksi) of minimum yield strength (MYS) and 965 MPa (140 ksi) MYS with very good toughness and with microstructure characterized by uniform and equiaxed grain...

... ABSTRACT The selection of 9% Ni steel for high pressure dried CO2 injection lines, adopted in a topside plant according to ASME B31.3, was based on the high strength and low temperature toughness properties of this material. The material specification for piping included seamless ASTM (1...

... toughness issc value low-alloy steel SSC resistance South Creek Drive Evaluation of Heavy-Walled, High-Strength, Low-Alloy Steel Mechanical Tubing for SSC Resistance Karthik Krishnan Greg B. Chitwood Terry McCoy Halliburton 2601 E. Belt Line Road Carrollton, Texas, 75006 ABSTRACT...

... embrittlement. For the fracture mechanisms, one can consider the theoretical criteria for crack stability based on linear elastic fracture mechanics. The criteria can be used to infer the material toughness and the toughness gradient at a propagating crack tip. These have implications on the mechanisms...

... & Gas Publication Division thick plate reactor texas 77084 embrittlement Houston South Creek Drive hydrogen embrittlement metals & mining resistance hydrogen attack high temperature hydrogen attack manuscript hydrogen content Thickness steel permission toughness hydrogen...

... the following issues for L450Q (X65Q) grade Carbon steel for linepipe: • the effect of hydrogen on material strength and toughness at low temperatures. • the general corrosion and stress corrosion cracking resistance in extreme conditions with high pressure of H2S looking for a window of applicability. Ductile...

... in-situ metallography stainless steel permission requirement texas 77084 alloy duplex stainless steel oilfield chemistry Corrosion Management Publication Division chi phase Houston superduplex stainless steel corrosion resistance South Creek Drive toughness manuscript QA/QC Tools...