Silicon's role in determining swelling in neutron-irradiated Fe-Cr-Ni-Si alloys

Conference · Fri Nov 01 00:00:00 EST 1991

OSTI ID:5955941

Sekimura, N ^[1]; Garner, F A ^[2]; Newkirk, J W ^[3]

---

1. Tokyo Univ., Tokai, Ibaraki (Japan)
2. Pacific Northwest Lab., Richland, WA (United States)
3. Missouri Univ., Rolla, MO (United States)

Two silicon-modified alloy series, one based on Fe-15Cr-20Ni and another based on Fe-15Cr-25Ni were irradiated at target temperatures between 399 and 649{degree}C in EBR-II. The influence of silicon on swelling is more complex than previously envisioned and indicates that silicon plays two or more competing roles while in solution. Radiation-induced formation of {gamma}{prime} (Ni{sub 3}Si) precipitates is dependent on silicon and nickel content, as well as temperature. Precipitation of {gamma}{prime} appears to play only a minor role in void formation.

• Research Organization: Pacific Northwest Lab., Richland, WA (United States)
• Sponsoring Organization: USDOE; USDOE, Washington, DC (United States)
• DOE Contract Number: AC06-76RL01830
• OSTI ID: 5955941
• Report Number(s): PNL-SA-19389; CONF-911111-27; ON: DE92006480
• Resource Relation: Conference: International conference on fusion reactor materials, Clearwater, FL (United States), 17-22 Nov 1991
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
Ma
36 MATERIALS SCIENCE
AUSTENITIC STEELS
DAMAGING NEUTRON FLUENCE
THERMONUCLEAR REACTOR MATERIALS
PHYSICAL RADIATION EFFECTS
SILICON
SWELLING
TEMPERATURE DEPENDENCE
VOIDS
ALLOYS
ELEMENTS
IRON ALLOYS
IRON BASE ALLOYS
MATERIALS
NEUTRON FLUENCE
RADIATION EFFECTS
SEMIMETALS
STEELS
700480* - Fusion Technology- Component Development
Materials Studies- (1992-)
360106 - Metals & Alloys- Radiation Effects