Detection of high-temperature hydrogen attack of steels by ultrasonic testing
Conference
·
· Proc., Am. Pet. Inst., Refin. Dep.; (United States)
OSTI ID:6208849
Equipment handling high-temperature, high-pressure hydrogen must undergo careful periodic inspection because of its susceptibility to hydrogen attack. This paper investigates the flaw detectability of ultrasonic testing, which is considered the most effective means of detecting hydrogen attack. For a vessel with a wall thickness of 10 millimeters, hydrogen attack can be detected if there are 100 to 150 intercrystalline cracks with lengths of 10 to 20 micrometers per square millimeter. For a vessel with a wall thickness of 140 millimeters, it can be detected if there are 150 to 200 intercrystalline cracks with lengths of 30 to 40 micrometers per square millimeter.
- Research Organization:
- Mitsubishi Heavy Industries, Ltd., Hiroshima
- OSTI ID:
- 6208849
- Report Number(s):
- CONF-840514-
- Conference Information:
- Journal Name: Proc., Am. Pet. Inst., Refin. Dep.; (United States) Journal Volume: 63
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
02 PETROLEUM
020400* -- Petroleum-- Processing
36 MATERIALS SCIENCE
360103 -- Metals & Alloys-- Mechanical Properties
360105 -- Metals & Alloys-- Corrosion & Erosion
ACOUSTIC TESTING
ALLOYS
CRACK PROPAGATION
CRACKS
DIMENSIONS
EMBRITTLEMENT
HYDROGEN EMBRITTLEMENT
INDUSTRIAL PLANTS
IRON ALLOYS
IRON BASE ALLOYS
MATERIALS
MATERIALS TESTING
NONDESTRUCTIVE TESTING
PETROLEUM REFINERIES
STEELS
TEMPERATURE EFFECTS
TESTING
THICKNESS
ULTRASONIC TESTING
WALLS
020400* -- Petroleum-- Processing
36 MATERIALS SCIENCE
360103 -- Metals & Alloys-- Mechanical Properties
360105 -- Metals & Alloys-- Corrosion & Erosion
ACOUSTIC TESTING
ALLOYS
CRACK PROPAGATION
CRACKS
DIMENSIONS
EMBRITTLEMENT
HYDROGEN EMBRITTLEMENT
INDUSTRIAL PLANTS
IRON ALLOYS
IRON BASE ALLOYS
MATERIALS
MATERIALS TESTING
NONDESTRUCTIVE TESTING
PETROLEUM REFINERIES
STEELS
TEMPERATURE EFFECTS
TESTING
THICKNESS
ULTRASONIC TESTING
WALLS