Published January 2011 | Version v1
Journal article Metadata-only

Study on fatigue life evaluation using small specimens for testing neutron-irradiated materials

Creators

  • 1. Tohoku Univ., Dept. of Quantum Science and Energy Engineering, Sendai, Miyagi (Japan)
  • 2. Univ. of Fukui, Dept. of Mechanical Engineering, Fukui (Japan)
  • 3. Japan Atomic Energy Agency, Tokai, Ibaraki (Japan)
  • 4. National Inst. for Fusion Science, Toki, Gifu (Japan)

Description

The effect of specimen size and shape on the fatigue life of reduced activation ferritic/martensitic steel 'F82H IEA-heat' was investigated to develop a fatigue life evaluation method using a small specimen for testing neutron-irradiated materials. The fatigue test was carried out at room temperature in air using three kinds of round-bar specimen (minimum diameter cross sections of 1, 4, and 7 mm) and one hourglass specimen (minimum diameter cross section of 1.25 mm). The effect of specimen size on fatigue life from a level of 103 to 104 cycles was almost negligible for the round-bar specimens. The shorter fatigue life at the total strain range below 0.6% and the slightly longer fatigue life at the total strain range above 0.8% of the hourglass specimen relative to that of the standard specimen were observed from a level of 102 to 104 cycles. (author)

Availability note (English)

Available from http://dx.doi.org/10.3327/jnst.48.60

Additional details

Identifiers

DOI
10.3327/jnst.48.60;

Publishing Information

Journal Title
Journal of Nuclear Science and Technology (Tokyo)
Journal Volume
48
Journal Issue
1
Journal Page Range
p. 60-64
ISSN
0022-3131

INIS

Country of Publication
Japan
Country of Input or Organization
Japan
INIS RN
42084747
Subject category
S36: MATERIALS SCIENCE; S70: PLASMA PHYSICS AND FUSION TECHNOLOGY;
Descriptors DEI
BREEDING BLANKETS; FATIGUE; FERRITIC STEELS; MARTENSITE; MARTENSITIC STEELS; MICROSTRUCTURE; NEUTRON SPUTTERING; NEUTRONS; SERVICE LIFE; STRAINS; TEMPERATURE RANGE 0273-0400 K; THERMONUCLEAR REACTOR MATERIALS
Descriptors DEC
ALLOYS; BARYONS; CARBON ADDITIONS; ELEMENTARY PARTICLES; FERMIONS; HADRONS; IRON ALLOYS; IRON BASE ALLOYS; LIFETIME; MATERIALS; MECHANICAL PROPERTIES; NUCLEONS; REACTOR COMPONENTS; SPUTTERING; STEELS; TEMPERATURE RANGE; TRANSITION ELEMENT ALLOYS

Optional Information

Notes
22 refs., 5 figs., 2 tabs.