Brazing fixture materials for fabrication of AM-350 fuel rod support grids (LWBR development program)

Technical Report · Sun Aug 01 00:00:00 EDT 1976

DOI:https://doi.org/10.2172/7153039· OSTI ID:7153039

Towner, R J

Results are presented of an investigation of the thermal expansion and contraction, anisotropy, and dimensional stability characteristics of candidate brazing fixture materials for LWBR fuel rod support grid structures. These characteristics are assessed in regard to their compatibility and usefulness with AM-350 grid material during two different brazing/fabrication processes, M and A, both of which involve 2070 to 2080/sup 0/F brazing in vacuum. Fixture materials evaluated for Process M are AM-355, low-carbon, low-nitrogen AM-350, and M2 tool steel. NiCrFe Alloy 600 is evaluated for Process A. Subsequent experience with development and production brazing fixtures for full-size grids is summarized.

• Research Organization: Bettis Atomic Power Lab., West Mifflin, Pa. (USA)
• OSTI ID: 7153039
• Report Number(s): WAPD-TM-1063
• Country of Publication: United States
• Language: English

Related Subjects

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11 NUCLEAR FUEL CYCLE AND FUEL MATERIALS
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36 MATERIALS SCIENCE
360101* -- Metals & Alloys-- Preparation & Fabrication
ALLOYS
BRAZING
BREEDER REACTORS
CHROMIUM ALLOYS
CHROMIUM STEELS
CHROMIUM-NICKEL STEELS
CORROSION RESISTANT ALLOYS
EPITHERMAL REACTORS
FABRICATION
FAST REACTORS
FBR TYPE REACTORS
FUEL ELEMENTS
INCONEL 600
INCONEL ALLOYS
IRON ALLOYS
IRON BASE ALLOYS
JOINING
LIQUID METAL COOLED REACTORS
LMFBR TYPE REACTORS
MECHANICAL STRUCTURES
MOLYBDENUM ALLOYS
NICKEL ALLOYS
NICKEL BASE ALLOYS
NIOBIUM ALLOYS
PHYSICAL PROPERTIES
REACTOR COMPONENTS
REACTORS
STAINLESS STEEL-AM-350
STAINLESS STEELS
STEELS
SUPPORTS
THERMODYNAMIC PROPERTIES
VERY HIGH TEMPERATURE
WELDING