The impact of transmutant helium on weldability of austenitic steel
- 1. Research Inst. of Electrophysical Apparatus, St. Petersburg (Russian Federation)
- 2. Nauchno-Issledovatel'skij Inst. Atomnykh Reaktorov, Dimitrovgrad (Russian Federation)
Description
The results of the investigation of 0.05-0.15 dpa neutron irradiation impact on the Cr16Ni11Mo3Ti austenitic steel weldability are presented. Samples were irradiated to doses of 1020 n/cm2 and 3 x 1020 n/cm2 (E>0.1 MeV) in the RBT-10 reactor, thus providing helium accumulation of 1 appm and 2.5 appm, respectively. Flat samples, 1 mm in thickness, were welded by an automatic device for argon arc welding in a hot chamber. Low-cycle fatigue (LCF) testing in bending was used to assess impact of helium on the degradation of welded joint properties. LCF tests showed that the transmutant helium accumulation resulted in a decrease in the number of cycles to failure at Ttest=20 C and 350 C. It is concluded that repeated welding will present a problem in the repair of ITER materials. (orig.)
Additional details
Publishing Information
- Journal Title
- Journal of Nuclear Materials
- Journal Volume
- 233-237
- Journal Issue
- pt.A
- Journal Page Range
- p. 173-176.
- ISSN
- 0022-3115
- CODEN
- JNUMAM
Conference
- Title
- 7. international conference on fusion reactor materials (ICFRM-7).
- Dates
- 25-29 Sep 1995.
- Place
- Obninsk (Russian Federation).
INIS
- Country of Publication
- Netherlands
- Country of Input or Organization
- Netherlands
- INIS RN
- 28022787
- Subject category
- S70: PLASMA PHYSICS AND FUSION TECHNOLOGY; S36: MATERIALS SCIENCE; S36: MATERIALS SCIENCE;
- Resource subtype / Literary indicator
- Conference
- Descriptors DEI
- AUSTENITIC STEELS; BUBBLES; CHROMIUM-NICKEL-MOLYBDENUM STEELS; FAST NEUTRONS; FATIGUE; HELIUM; ITER TOKAMAK; PHYSICAL RADIATION EFFECTS; S-N DIAGRAM; TEMPERATURE RANGE 0273-0400 K; TEMPERATURE RANGE 0400-1000 K; THERMONUCLEAR REACTOR MATERIALS; TRANSMUTATION; WELDABILITY; WELDED JOINTS; WELDING
- Descriptors DEC
- ALLOYS; BARYONS; CARBON ADDITIONS; CHROMIUM ALLOYS; CHROMIUM STEELS; CHROMIUM-MOLYBDENUM STEELS; CHROMIUM-NICKEL STEELS; CLOSED PLASMA DEVICES; DIAGRAMS; ELEMENTARY PARTICLES; ELEMENTS; FABRICATION; FERMIONS; HADRONS; HIGH ALLOY STEELS; INFORMATION; IRON ALLOYS; IRON BASE ALLOYS; JOINING; JOINTS; MATERIALS; MECHANICAL PROPERTIES; MOLYBDENUM ALLOYS; NEUTRONS; NICKEL ALLOYS; NONMETALS; NUCLEONS; RADIATION EFFECTS; RARE GASES; STAINLESS STEELS; STEELS; TEMPERATURE RANGE; THERMONUCLEAR DEVICES; THERMONUCLEAR REACTORS; TOKAMAK DEVICES; TOKAMAK TYPE REACTORS; TRANSITION ELEMENT ALLOYS