The Effect of Reverted Austenite on the Stress Corrosion Cracking Resistance of Two Maraging Steels.
CARNEGIE-MELLON UNIV PITTSBURGH PA
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The stress corrosion cracking susceptibility of two maraging steels 12 and 18 Ni in a 3.5 NaCl aqueous solution was examined as a function of aging treatment. Comparisons are made of time and nominal stress to failure for three aging treatments giving for the 12-Ni composition a yield strength level of 160 ksi, and one of 180 ksi for the 18-Ni steel. The overaged condition was the most susceptible in both steels. The underaged specimens showed evidence of crack blunting in terms of time to failure and threshold level, the higher temperature underaging treatment was found preferable. Author
- Properties of Metals and Alloys