Effects of temperature on fatigue crack growth of A508-2 in LWR environment

Conference · Sat Jan 01 00:00:00 EST 1983 · Am. Soc. Mech. Eng., Pressure Vessels Piping Div., (Tech. Rep.) PVP; (United States)

OSTI ID:5315289

Cullen, W H; Kemppainnen, M; Torronen, K

Fatigue crack growth rates were determined for A5082 material in pressurized high-temperature, reactor-grade water, over a temperature range of 93/sup 0/C to 288/sup 0/C (200/sup 0/F to 550/sup 0/F). In addition, studies of the oxide layer on the fatigue fracture surface and of the fractography of these specimens were completed in order to provide information on corrosion-assisted, fatigue crack growth mechanisms. The crack growth data show a distinct minimum in growth rate at about200/sup 0/C ( about400/sup 0/F). Magnetite (Fe/sub 3/O/sub 4/) was found on the fatigue fracture surfaces at all temperatures. The fractography shows brittle-like features for all test temperatures. These observations suggest that hydrogen evolution may have occurred and that hydrogen assisted crack growth may be responsible for the environmental effects observed.

• Research Organization: Materials Engineering Associates, Inc., Lanham, MD
• OSTI ID: 5315289
• Report Number(s): CONF-830607-; TRN: 84-003738
• Journal Information: Am. Soc. Mech. Eng., Pressure Vessels Piping Div., (Tech. Rep.) PVP; (United States), Vol. PVP-VOL. 71; Conference: American Society of Mechanical Engineers pressure vessel and piping conference, Portland, OR, USA, 19 Jun 1983
• Country of Publication: United States
• Language: English

Related Subjects

21 SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS
36 MATERIALS SCIENCE
PWR TYPE REACTORS
REACTOR MATERIALS
CORROSION FATIGUE
THERMAL FATIGUE
STEEL-ASTM-A508
BRITTLENESS
CRACK PROPAGATION
FRACTOGRAPHY
HYDROGEN EMBRITTLEMENT
MAGNETITE
OXIDES
SCALING
TEMPERATURE EFFECTS
WATER
ALLOYS
CHALCOGENIDES
EMBRITTLEMENT
FATIGUE
HYDROGEN COMPOUNDS
IRON ALLOYS
IRON BASE ALLOYS
IRON COMPOUNDS
IRON ORES
IRON OXIDES
MATERIALS
MECHANICAL PROPERTIES
MINERALS
ORES
OXIDE MINERALS
OXYGEN COMPOUNDS
REACTORS
STEELS
TRANSITION ELEMENT COMPOUNDS
WATER COOLED REACTORS
WATER MODERATED REACTORS
210200* - Power Reactors
Nonbreeding
Light-Water Moderated
Nonboiling Water Cooled
360103 - Metals & Alloys- Mechanical Properties