Evaluation of corrosion resistance of a duplex stainless steel in H/sub 2/S-CO/sub 2/-chloride environments

Journal Article · Thu Sep 01 04:00:00 EDT 1983 · J. Mater. Energy Syst.; (United States)

DOI:https://doi.org/10.1007/BF02833535· OSTI ID:6706985

Onoyama, M; Hayashi, N; Shitani, K; Suehiro, T

Corrosion behavior of a 25 pct Cr-7 pct Ni-3 pct Mo duplex stainless steel was investigated to clarify stress and environmental conditions where stress corrosion cracking (SCC) was not present. SCC occurred most severely at a strain rate of 3 x 10/sup -6/s/sup -1/ and susceptibility decreased at either faster or slower strain rates. This critical strain rate was similar to the one found in the 42 pct MgCl/sub 2/ solution (143 /sup 0/C). SCC propagated in transgranular manner through ferrite grains and preferential dissolution occurred in austenite. The effects of partial pressure of H/sub 2/S, chloride concentration, pH, and temperature on susceptibility of solution-treated and cold-drawn steel were examined. The critical conditions where SCC appeared estimated.

• Research Organization: Hikari Works Nippon Steel Corp, Hikari
• OSTI ID: 6706985
• Journal Information: J. Mater. Energy Syst.; (United States), Journal Name: J. Mater. Energy Syst.; (United States) Vol. 5:2; ISSN JMSMD
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360101* -- Metals & Alloys-- Preparation & Fabrication
360105 -- Metals & Alloys-- Corrosion & Erosion
ALLOYS
CARBON COMPOUNDS
CARBON DIOXIDE
CARBON OXIDES
CHALCOGENIDES
CHLORIDES
CHLORINE COMPOUNDS
CHROMIUM ALLOYS
COLD WORKING
CORROSION RESISTANCE
CORROSION RESISTANT ALLOYS
CORROSIVE EFFECTS
CRACK PROPAGATION
FABRICATION
HALIDES
HALOGEN COMPOUNDS
HYDROGEN COMPOUNDS
HYDROGEN SULFIDES
IRON ALLOYS
IRON BASE ALLOYS
MATERIALS TESTING
MATERIALS WORKING
OXIDES
OXYGEN COMPOUNDS
STAINLESS STEELS
STEELS
STRAIN RATE
SULFIDES
SULFUR COMPOUNDS
TECHNOLOGY ASSESSMENT
TEMPERATURE EFFECTS
TESTING