The effect of cold work on the SCC susceptibility of austenitic stainless steels

Book · Sun Dec 31 04:00:00 EST 1995

OSTI ID:203830

Tsubota, Motoji; Kanazawa, Yukio; Inoue, Hitoshi ^[1]

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1. Toshiba Corp., Yokohama (Japan)

The stress corrosion cracking (SCC) susceptibility of types 304 and 316L austenitic stainless steels in the high temperature water was examined with combinations of the sensitization and cold working. Transgranular stress corrosion cracking (TGSCC) susceptibility of cold worked material was high in highly cold worked condition, and the critical condition was estimated by the hardness. True strain for the uniform deformation obtained from tensile tests decreased with the hardness, and became saturated at the critical hardness for the SCC susceptibility. From the relationship between SCC susceptibility and mechanical properties, the remedy margin in cold deformation for SCC susceptibility of 316 S/S can be described as in equation (1). 10 to 20% cold working prior to sensitization increased intergranular stress corrosion cracking (IGSCC) susceptibility, and more than 40% of cold working improved the resistance to the SCC of 304 S/S. 316L S/S did not show IGSCC susceptibility. IGSCC susceptibility of 304 S/S cold worked after sensitization was higher than the as-sensitized condition, regardless to the cold work ratio.

• OSTI ID: 203830
• Report Number(s): CONF-950816--; ISBN 1-877914-95-9
• Country of Publication: United States
• Language: English

Related Subjects

21 SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS
36 MATERIALS SCIENCE
BWR TYPE REACTORS
COLD WORKING
CRACK PROPAGATION
EXPERIMENTAL DATA
INTERGRANULAR CORROSION
MICROSTRUCTURE
REACTOR MATERIALS
STAINLESS STEEL-304
STAINLESS STEEL-316L
STRESS CORROSION