AMPP Store - Products tagged with 'hydrogen stress cracking'

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Optimisation Of Hydrogen Stress Cracking Resistance Of High Strength Precipitation Hardened Nickel Alloys

Product Number: 51322-17960-SG

Author: Stephen McCoy, Brian A. Baker, William MacDonald

Publication Date: 2022

$20.00

The Precipitation Hardenable (PH) Nickel alloys N09925, N07718, N09945, N09946 and N07725 are widely used for critical downhole oil field applications such as high strength tubing hangers and completion equipment. The materials are particularly useful in High Pressure/High Temperature wells where high strength and corrosion resistance are required in H₂S containing production fluids. Over the last 20 years a limited number of field failure investigations in PH Nickel alloys have been related to the presence of sufficient amounts of intergranular precipitates promoting hydrogen embrittlement, which results in brittle cracking of UNS alloys N07718 ^3,4 and alloy N07725⁵ and N07716⁶.

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Probabilistic Assessment of Hydrogen Stress Cracking of Steels and CRA in Sour Environments

Product Number: 51324-20409-SG

Author: Narasi Sridhar; Mariano A. Kappes

Publication Date: 2024

$40.00

Hydrogen Stress Cracking (HSC) of steels and CRA has been studied for a long time and it is recognized that the results have significant variability depending on many factors, including test procedures, material microstructures, and environmental variables. Although the standards used for acceptance of a material for sour service are deterministic, the variabilities in the test data as well as field conditions merit probabilistic treatment. This paper provides a Bayesian network model of HSC that connects the variabilities in material, environment, and loading conditions through mechanistic factors related to hydrogen transport, deformation mode, and strain rate. The model tries to encapsulate the state of knowledge in this area and tests the outcomes in terms of probability of HSC. The sensitivity of the model to input variables is assessed.

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The Development of Highly Corrosion Resistant PH Nickel Bar for Sour Oil and Gas and HydrogenStress Cracking Resistance

Product Number: MECC23-20363-SG

Author: Stephen McCoy; Brian A. Baker; William MacDonald

Publication Date: 2023

$20.00

The Precipitation Hardenable Nickel alloys 925, 718, 945, 945X and 725 are widely used for critical downhole oil field applications such as high strength tubing hangers and completion equipment. The materials are particularly useful in High Pressure/High Temperature wells where high strength and corrosion resistance are required in H2S containing production fluids.

Figure 1 shows a graphical summary of environmental service limits for the application of precipitation hardened nickel alloys defined within the NACE/ISO standards.

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The Susceptibility Of Spheroidal Graphite Cast Iron To Hydrogen Induced Stress Cracking

Product Number: 51322-17796-SG

Author: Veronika Djupvik, Cathrine Hartung, Atle H. Qvale, Roy Johnsen, Ida Westermann

Publication Date: 2022

$20.00

Cast Iron with its ancient history, traced back to 6th century BCE1, has been used for centuries to anything from manhole covers & fire hydrants to bridges. However, the development of Spheroidal Graphite Cast Iron (SGCI) or Nodular Cast Iron, in the 1940’s, with resulting improvement in mechanical properties such as ductility and fracture toughness, paved the way for further growth in industrial usage of cast iron.² The material has been adopted by several industries such as automotive-, nuclear-, and wind turbine industry. During the last decade, SCGI has gained increased attention as construction material for subsea equipment in offshore oil & gas production, mainly competing with welded and bolted steel assemblies.

Products tagged with 'hydrogen stress cracking'

Optimisation Of Hydrogen Stress Cracking Resistance Of High Strength Precipitation Hardened Nickel Alloys

Probabilistic Assessment of Hydrogen Stress Cracking of Steels and CRA in Sour Environments

The Development of Highly Corrosion Resistant PH Nickel Bar for Sour Oil and Gas and HydrogenStress Cracking Resistance

The Susceptibility Of Spheroidal Graphite Cast Iron To Hydrogen Induced Stress Cracking

Association for Materials Protection and Performance