On the evaluation methods of Ni-base corrosion resistant alloy for sour-gas exploration and production

Journal Article · Sun Oct 01 04:00:00 EDT 1989 · Corrosion (Houston); (USA)

DOI:https://doi.org/10.5006/1.3584991· OSTI ID:7173260

Ikeda, A ^[1]; Igarashi, M; Ueda, M; Okada, Y; Tsuge, H ^[2]

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1. Sumitomo Metal Industries, Ltd. Osaka Head Office, 5-15 kitahoma, Higashiku, Osalka (JP)
2. Sumitomo Metal Industries, Technical Research Labs., 3-1, Nishinagasu-Handori, Amagasaki (JP)

The effect of Cr, Ni, and Mo contents of Ni-base alloy on the corrosion behavior in H{sub 2}S {minus} CO{sub 2 {minus}} Cl{sup {minus}} environment with elemental sulfur at elevated temperature was investigated. The environmental with elemental sulfur was more corrosive than that without elemental sulfur. The stress corrosion cracking (SCC) resistance of Ni-base alloys increases with increasing Ni and especially Mo contents. The main effect of the elemental sulfur is considered that the generation of H{sub 2}S due to the cathodic reaction of elemental sulfur at a location underneath sulfur deposition, which is related to the viscosity of elemental sulfur. Recommendable chemical composition of Ni-base alloys in H{sub 2}S {minus} CO{sub 2 {minus}} Cl{sup {minus}} {minus} S environment is proposed from the view points of phase stability stress corrosion cracking, and hydrogen embrittlement (HE). Suitable high-Ni alloys had more than 12%Mo and 15%Cr and the phase stability parameter (Md) value below 0.911.

• OSTI ID: 7173260
• Journal Information: Corrosion (Houston); (USA), Journal Name: Corrosion (Houston); (USA) Vol. 45:10; ISSN CORRA; ISSN 0010-9312
• Country of Publication: United States
• Language: English

Related Subjects

03 NATURAL GAS
030300 -- Natural Gas-- Drilling
Production
& Processing
36 MATERIALS SCIENCE
360103 -- Metals & Alloys-- Mechanical Properties
360105* -- Metals & Alloys-- Corrosion & Erosion
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201 -- Chemical & Physicochemical Properties
ALLOYS
CATHODIC PROTECTION
CHEMICAL REACTIONS
CORROSION
CORROSION INHIBITORS
CORROSION PROTECTION
CORROSION RESISTANCE
CORROSIVE EFFECTS
CRACK PROPAGATION
ELEMENTS
EMBRITTLEMENT
HYDROGEN EMBRITTLEMENT
INDUSTRIAL PLANTS
NATURAL GAS PROCESSING PLANTS
NICKEL ALLOYS
NICKEL BASE ALLOYS
NONMETALS
STRESS CORROSION
SULFUR
SULFUR CONTENT