Materials research and evaluation for geothermal corrosion environments. Progress report, December 15, 1974--December 15, 1975. [Ni Co Cr Mo alloy]

Technical Report · Mon Dec 01 00:00:00 EST 1975

DOI:https://doi.org/10.2172/7363792· OSTI ID:7363792

Troiano, A R; Hehemann, R F

Bent beam and self-stressed specimens have been employed and shown to give results consistent with other types of specimens as reported in the literature. All tests have been conducted in the standard NACE, H/sub 2/S environment for initial screening and then in a 20 percent NaCl modified NACE solution. Among the higher strength corrosion resistant alloys, K Monel at 135 ksi yield strength did not fail in either environment at temperatures up to 425/sup 0/F stressed at the yield strength. Age hardenable A286 failed at 325/sup 0/F when stressed to the 190 ksi yield strength, but did not fail when stressed to an overaged yield strength of 135 ksi. A new NiCoCrMo age hardenable alloy heat treated to 220 ksi yield strength and stressed to this value did not fail in either environment at temperatures up to 420/sup 0/F. Also, this material was substantially ''brighter'' after the tests than either the K-Monel or A286.

• Research Organization: Case Western Reserve Univ., Cleveland, Ohio (USA)
• DOE Contract Number: E(11-1)-2602
• OSTI ID: 7363792
• Report Number(s): COO-2602-2
• Country of Publication: United States
• Language: English

Related Subjects

15 GEOTHERMAL ENERGY
ALLOYS
CORROSION
GEOTHERMAL FLUIDS
CORROSIVE EFFECTS
MONEL
SODIUM CHLORIDES
STAINLESS STEELS
ACETIC ACID
AQUEOUS SOLUTIONS
CORROSION RESISTANT ALLOYS
HYDROGEN SULFIDES
MATERIALS TESTING
YIELD STRENGTH
ALKALI METAL COMPOUNDS
CARBOXYLIC ACIDS
CHALCOGENIDES
CHEMICAL REACTIONS
CHLORIDES
CHLORINE COMPOUNDS
CHROMIUM ALLOYS
COPPER ALLOYS
DISPERSIONS
FLUIDS
HALIDES
HALOGEN COMPOUNDS
HYDROGEN COMPOUNDS
IRON ALLOYS
IRON BASE ALLOYS
MECHANICAL PROPERTIES
MIXTURES
MONOCARBOXYLIC ACIDS
NICKEL ALLOYS
NICKEL BASE ALLOYS
ORGANIC ACIDS
ORGANIC COMPOUNDS
SODIUM COMPOUNDS
SOLUTIONS
STEELS
SULFIDES
SULFUR COMPOUNDS
TESTING
Geothermal Legacy
150903* - Geothermal Engineering- Corrosion
Scaling & Materials Development