Critical stress for stress corrosion cracking of duplex stainless steel in sour environments

Journal Article · Thu Aug 01 04:00:00 EDT 1996 · Corrosion

DOI:https://doi.org/10.5006/1.3292149· OSTI ID:276606

Miyasaka, A; Kanamaru, T ^[1]; Ogawa, H ^[2]

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1. Nippon Steel Corp., Tokai, Aichi (Japan). Nagoya Research and Development Labs.
2. Nippon Steel Corp., Futtsu, Chiba (Japan). Steel Research Labs.

The critical stress for initiation of stress corrosion cracking (SCC) of a duplex stainless steel (DSS) in a sour environment was investigated using three stress application techniques: constant-strain, constant-load, and slow strain rate testing (SSRT). The critical stresses for SCC initiation as determined by detailed observation of the alloy surface after the three tests were in good agreement when a newly proposed index was adopted to express the SSRT results combined with crack observations for each test. The effect of cold work (CW) on SCC and pitting resistance of the DSS also was studied. CW did not accelerate SCC when initiation was controlled by pitting. The critical stress for SCC initiation increased with increasing CW and the resultant increase in yield stress.

• Sponsoring Organization: USDOE
• OSTI ID: 276606
• Journal Information: Corrosion, Journal Name: Corrosion Journal Issue: 8 Vol. 52; ISSN 0010-9312; ISSN CORRAK
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
03 NATURAL GAS
36 MATERIALS SCIENCE
COLD WORKING
CORROSION RESISTANT ALLOYS
CRACK PROPAGATION
FIELD PRODUCTION EQUIPMENT
HYDROGEN SULFIDES
MECHANICAL TESTS
NATURAL GAS WELLS
OIL WELLS
PITTING CORROSION
STAINLESS STEELS
STRESS ANALYSIS
STRESS CORROSION