Published September 1986 | Version v1
Journal article Metadata-only

Effect of helium on formation of precipitates in OCr16Ni15Mo3Nb steel

Creators

  • 1. AN Kazakhskoj SSR, Alma-Ata. Inst. Yadernoj Fiziki

Description

Electron microscopy study of changes in OCr16Ni15Mo3Nb steel structure has been carried out in sample zones (1) irradiated by alpha-particles of 29 MeV energy, (2) doped with helium to a concentration of 500 appm, and (3) unirradiated after annealing at 7000C for 0.5, 1 and 50 h. Short-time annealings are shown to cause elimination of defects in the irradiated zone and their evolution into dislocation loops in the helium-doped zone. Ageing for 50 h caused the formation of finely-dispersed precipitates only in the helium-doped zone. Results of similar experiments with steel samples irradiated by protons of 7 MeV energy indicate that helium is an effective catalyst of phase precipitation in OCr16Ni15Mo3Nb steel. (author)

Additional details

Publishing Information

Journal Title
Radiat. Eff.
Journal Volume
97
Journal Issue
1-2
Series
Radiat. Eff.
Journal Page Range
149-154
ISSN
0033-7579
CODEN
RAEFB

INIS

Country of Publication
United Kingdom
Country of Input or Organization
United Kingdom
INIS RN
18017863
Subject category
S36: MATERIALS SCIENCE;
Resource subtype / Literary indicator
Numerical Data
Descriptors DEI
AGE HARDENING; ALPHA PARTICLES; ANNEALING; AUSTENITIC STEELS; DEFECTS; DISLOCATIONS; DOPED MATERIALS; ELECTRON MICROSCOPY; EXPERIMENTAL DATA; HELIUM; HYDROGEN IONS 1 PLUS; IMAGES; MEV RANGE 10-100; PHYSICAL RADIATION EFFECTS; PRECIPITATION; STAINLESS STEELS
Descriptors DEC
ALLOYS; CARBON ADDITIONS; CATIONS; CHARGED PARTICLES; CRYSTAL DEFECTS; CRYSTAL STRUCTURE; DATA; ELEMENTS; ENERGY RANGE; HARDENING; HEAT TREATMENTS; HELIUM IONS; HIGH ALLOY STEELS; HYDROGEN IONS; INFORMATION; IONIZING RADIATIONS; IONS; IRON ALLOYS; IRON BASE ALLOYS; LINE DEFECTS; MATERIALS; MEV RANGE; MICROSCOPY; NONMETALS; NUMERICAL DATA; RADIATION EFFECTS; RADIATIONS; RARE GASES; SEPARATION PROCESSES; STEELS