Mechanical properties of Haynes alloy 188 after 22,500 hours of exposure to LiF-22CaF[sub 2] and vacuum at 1,093 K
- NASA Lewis Research Center, Cleveland, OH (United States)
As a continuation of a study of a space-based thermal energy storage system centered on a LiF-CaF[sub 2] eutectic salt contained by Haynes alloy 188, this Co-base superalloy was subjected to molten salt, its vapor, and vacuum for 22,500 h at 1,093 K. Samples from all three exposure conditions were tensile tested between 77 to 1,200 K; in addition, vacuum and molten-salt exposed specimens were vacuum creep rupture tested at 1,050 K. Comparison of these mechanical properties with those measured for the as-received alloy reveals no evidence for degradation beyond that ascribed to sample thermal aging of Haynes alloy 188. This behavior is identical to the 10,000 h results; hence, Haynes alloy 188 is a suitable containment material for an eutectic LiF-CaF[sub 2] thermal energy storage salt.
- OSTI ID:
- 6873906
- Journal Information:
- Journal of Materials Engineering and Performance; (United States), Vol. 3:6; ISSN 1059-9495
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
14 SOLAR ENERGY
CALCIUM FLUORIDES
CORROSIVE EFFECTS
HAYNES 188 ALLOY
CORROSION
MECHANICAL PROPERTIES
LITHIUM FLUORIDES
THERMAL ENERGY STORAGE EQUIPMENT
MATERIALS
EXPERIMENTAL DATA
LATENT HEAT STORAGE
SPACECRAFT POWER SUPPLIES
ALKALI METAL COMPOUNDS
ALKALINE EARTH METAL COMPOUNDS
ALLOY-CO36CR22NI22W15FE3
ALLOYS
CALCIUM COMPOUNDS
CALCIUM HALIDES
CHEMICAL REACTIONS
CHROMIUM ALLOYS
COBALT ALLOYS
COBALT BASE ALLOYS
CORROSION RESISTANT ALLOYS
DATA
ELECTRONIC EQUIPMENT
ENERGY STORAGE
ENERGY STORAGE SYSTEMS
ENERGY SYSTEMS
EQUIPMENT
FLUORIDES
FLUORINE COMPOUNDS
HALIDES
HALOGEN COMPOUNDS
HAYNES ALLOYS
HEAT RESISTANT MATERIALS
HEAT RESISTING ALLOYS
HEAT STORAGE
INFORMATION
IRON ALLOYS
LANTHANUM ADDITIONS
LANTHANUM ALLOYS
LITHIUM COMPOUNDS
LITHIUM HALIDES
NUMERICAL DATA
POWER SUPPLIES
RARE EARTH
RARE EARTH ALLOYS
STORAGE
360103* - Metals & Alloys- Mechanical Properties
360105 - Metals & Alloys- Corrosion & Erosion
142000 - Solar Energy- Heat Storage- (1980-)