STRESS CORROSION OF HIGH STRENGTH STEELS AND ALLOYS; ARTIFICIAL ENVIRONMENT
Quarterly Scientifc Progress rept., no. 16, 1 Feb-30 Apr 1962
CARNEGIE-MELLON UNIV PITTSBURGH PA MELLON INST OF SCIENCE
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A brief review of the experimental procedures utilized in the stress corrosion testing program is presented. Three strength levels of Vascojet1000 and two strength levels of D6Ac U-bend samples were subjected to stress corrosion testing in five synthetic environments. The V-1000 data indicate that the alloy is the more susceptible of all groups tested to date. No minimum strength level of inhibition is indicated by the data for this alloy. Failure during testing of the V-1000 samples was often of the multiplecrack catastrophic type rather than of the single-crack type. The D6Ac data indicate that, of the low alloy, high strength steels tested to date, this material is the least susceptible to stress corrosion failure. Data for stress corrosion testing of comparative heats of V-1000 and D6Ac substantiate the order of magnitude of failure observed for the foregoing. Tables of cumulative stress corrosion test data for other alloys being tested by both the U-bend and bent beam test methods are presented for comparative reference.
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