The stress corrosion susceptibility of three materials (Inconel 600, Sanicro 30, and Monel 400) has been evaluated in concentrated caustic solutions at 300 C. The effect of material composition, heat treatment, applied stress, and caustic concentration on tube integrity was studied. Applied stress was found to have the greatest effect on cracking susceptibility.

Subject
Materials, Nickel based alloys, Tubes, Steam generators, Stress cracking, Thermal stress, Intergranular cracking, Stress, C ring stress corrosion testing, Heat, Monel alloys, Heat treatment, Residual stress
© 1978 National Association of Corrosion Engineers
1978
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