ISSN: 1945-7553
CODEN: JTEVAB
Page Count: 5

Effect of Temperature on Stress Corrosion Cracking of 300M Steel

Ryder, JT
Research scientist and research enginer assistantmember of ASTM, Lockheed-California Co., Rye Canyon Research Laboratory, Burbank, Calif.

Pickel, FM
Research scientist and research enginer assistantmember of ASTM, Lockheed-California Co., Rye Canyon Research Laboratory, Burbank, Calif.

Abstract

The effect of temperature on stress corrosion cracking of high-carbon 300M high-strength steel in deionized water was investigated. Tests were conducted with wedge-opening-load specimens at 0, 23, and 90°C. Stress corrosion crack growth rates above the stress corrosion cracking threshold K_Iscc were found to increase with increasing temperature and to be essentially constant at each temperature. The crack growth rates appeared to be described by an Arrhenius-type rate expression. The apparent stress corrosion cracking threshold K_Iscc at 23°C was approximately 12.1 MPa · m^½ (11 ksi·in.^½) and at 90°C, 16.5 MPa·m^½ (15 ksi·in.^½). At 0°C, K_Iscc appeared to be lower than at 23°C.

Keywords:
stress corrosion, steels, crack propagation, temperature effects, 300M steel, salt water, stress corrosion cracking

Paper ID: JTE10931J
DOI: 10.1520/JTE10931J
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