Permissible crack size in the frame of a water-cooled, water-moderated reactor
Creators
Description
The theoretical determination of the permissible crack size is outlined for the example of a semielliptical crack under the weld seam in the shell of the reactor frame. The crack is in the basic metal of the shell in the melting zone, and is oriented along the frame axis so that it opens under the action of axial stress. The ratio of the crack depth l to its length at the fusion boundary 2c is one third. The shell material is 15Kh2NMFA steel. The following shifts in critical brittleness temperature of the steel are determined: as a result of aging of the material ΔT/sub c/ = 50C; as a result of cyclic damage ΔT/sub N/ = 00C; and as a result of neutron irradiation (a/sub f/ = 230C neutron-13 cm-2) ΔT/sub f/ = 920C; the critical brittleness temperature of the steel in the initial state ΔT/sub Co/ = -250C; the temperature margin ΔT/sub M/ = 300C.usin
Additional details
Publishing Information
- Journal Title
- Sov. At. Energy (Engl. Transl.)
- Journal Volume
- 62
- Journal Issue
- 6
- Series
- Sov. At. Energy (Engl. Transl.).
- Journal Page Range
- 430-434
- ISSN
- 0038-531X
- CODEN
- SATEA
INIS
- Country of Publication
- United States
- Country of Input or Organization
- United States
- INIS RN
- 19082021
- Subject category
- S36: MATERIALS SCIENCE; S36: MATERIALS SCIENCE; S21: SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS;
- Resource subtype / Literary indicator
- Translation
- Descriptors DEI
- CHROMIUM-NICKEL STEELS; CRACK PROPAGATION; ELASTICITY; ELONGATION; EMBRITTLEMENT; FATIGUE; FRACTURE PROPERTIES; LIFETIME; LIMITING VALUES; PHYSICAL RADIATION EFFECTS; REACTOR MATERIALS; SHRINKAGE; STEEL-CRMO; STRESS ANALYSIS; STRESS INTENSITY FACTORS; TEMPERATURE DEPENDENCE; WATER COOLED REACTORS; WATER MODERATED REACTORS; WELDED JOINTS; YIELD STRENGTH
- Descriptors DEC
- ALLOYS; CARBON ADDITIONS; CHROMIUM ADDITIONS; CHROMIUM ALLOYS; DEFORMATION; HIGH ALLOY STEELS; IRON ALLOYS; IRON BASE ALLOYS; JOINTS; LOW ALLOY STEELS; MATERIALS; MECHANICAL PROPERTIES; MOLYBDENUM ADDITIONS; NICKEL ADDITIONS; NICKEL ALLOYS; RADIATION EFFECTS; REACTORS; STAINLESS STEELS; STEELS
Optional Information
- Notes
- Translated from At. Ehnerg.; 62: No. 6, 379-382(Jun 1987).