The cryogenic tensile and fracture toughness properties of austenitic steels given low temperature, short-time Nb{sub 3}Sn reaction heat treatments

Journal Article · Sun Jun 01 00:00:00 EDT 1997 · Advances in Cryogenic Engineering

OSTI ID:476721

Summers, L T; Walsh, R P; Miller, J R ^[1]

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1. National High Magnetic Field Lab., Tallahassee, FL (United States)

Commercial 316L and 316LN alloys have been evaluated for service as the conduit material for the 45-T Hybrid Magnet. The 4 K tensile and fracture toughness properties of these alloys have been measured before and after a simulated Nb{sub 3}Sn reaction heat treatment. The tensile properties have been found to be unaffected by the heat treatment short, low temperature proposed for high performance superconductors. The fracture toughness also does not change with heat treatment although there is evidence of discontinuous intergranular precipitation in the high carbon 316LN alloy. Uncharacteristically low toughness is reported for one alloy in both the as received and heat treated condition.

• OSTI ID: 476721
• Report Number(s): CONF-950722-; ISSN 0065-2482; CNN: Grant DMR 9016241; TRN: 97:009212
• Journal Information: Advances in Cryogenic Engineering, Vol. 42A; Conference: CEC/ICMC `95: cryogenic engineering conference and international cryogenic materials conference, Columbus, OH (United States), 17-21 Jul 1995; Other Information: PBD: 1997
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
66 PHYSICS
STAINLESS STEEL-316L
FRACTURE PROPERTIES
TENSILE PROPERTIES
HEAT TREATMENTS
TEMPERATURE RANGE 0000-0013 K
SUPERCONDUCTING MAGNETS
NIOBIUM BASE ALLOYS
TIN ALLOYS