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Laboratory testing of nickel alloys for H/sub 2/S service

Journal Article · · Mater. Performance; (United States)
OSTI ID:5588310
The corrosion behavior of several Ni alloys are examined in laboratory tests designed to evaluate materials for H/sub 2/S service. Resistance to hydrogen embrittlement, sulfide stress corrosion cracking (SCC) and chloride SCC is evaluated. Cathodically charged tensile specimens and steel coupled C-rings are used to characterize hydrogen embrittlement in a 5% NaCl/0.5% acetic acid solution saturated with H/sub 2/S. C-rings in 15 to 25% sodium chloride solutions containing H/sub 2/S and CO/sub 2/ are used to study SCC at elevated temperatures. The results indicate that hydrogen embrittlement is best resisted by cold worked or age hardened alloys having yield strengths under 1,103 MPa (160 ksi). For resistance to chloride SCC, alloys with more than 40% Ni should be used.
OSTI ID:
5588310
Journal Information:
Mater. Performance; (United States), Journal Name: Mater. Performance; (United States) Vol. 22:1; ISSN MTPFB
Country of Publication:
United States
Language:
English