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US 12,339,258 B2Granted
Precision high-temperature hydrogen attack apparatus
AssigneeStress Engineering Services, Inc.
InventorsSteven Kinyon, Dustin McKnight, David Murphey
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Abstract
A method and apparatus for measuring corrosion damage in a sample while under a bending load at a desired temperature and pressure to simulate production environments and accelerate hydrogen attack on the sample undergoing hoop stress, axial stress, and/or tensile stress, while controlling the exposure rate to hydrogen and increasing the safety of using pressurized hydrogen.
Claims20
A testing apparatus comprising:
- a loading frame with legs connected to a first load cylinder mount and a second load cylinder mount;
- at least one beam coupled to the first load cylinder mount and coupled to the second load cylinder mount;
- a first load cylinder coupled underneath the first load cylinder mount and having a first piston rod protruding through the top of the first load cylinder mount;
- a second load cylinder coupled underneath the second load cylinder mount and having a second piston rod protruding through the top of the second load cylinder mount;
- a first bending reaction beam and a second bending reaction beam parallel to each other and coupled perpendicular to the top of the at least one beam;
- a sample assembly having a center sample portion, a first extension portion, and a second extension portion, wherein the first piston rod is coupled to the first extension portion, the second piston rod is coupled to the second extension portion, and the sample portion is disposed perpendicularly across the parallel first bending reaction beam and second bending reaction beam;
- and
- at least one temperature sensor affixed to the sample assembly.
5 more elements
A testing apparatus comprising:
- a plurality of loading frames, each with legs connected to a first load cylinder mount and a second load cylinder mount, at least one beam coupled to the first load cylinder mount and coupled to the second load cylinder mount;
- each loading frame having a first load cylinder coupled underneath the first load cylinder mount and having a first piston rod protruding through the top of the first load cylinder mount;
- each loading frame having a second load cylinder coupled underneath the second load cylinder mount and having a second piston rod protruding through the top of the second load cylinder mount;
- each loading frame having a first bending reaction beam and a second bending reaction beam parallel to each other and coupled perpendicular to the top of the at least one beam;
- each loading frame having a sample assembly having a center sample portion, a first extension portion, and a second extension portion, wherein the first piston rod is coupled to the first extension portion, the second piston rod is coupled to the second extension portion, and the sample portion is disposed perpendicularly across the parallel first bending reaction beam and second bending reaction beam;
- and
- at least one temperature sensor affixed to each sample assembly.
4 more elements
Dependencies are inferred from the claim text.