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- W257834233 abstract "Abstract : Six potential aerospace alloys were evaluated for toughness at liquid hydrogen temperature (-423 deg F). They were: Titanium 5Al-2.5Sn (ELI), Titanium 6Al-4V (ELI), INCO 718 (aged) nickel alloy, Aluminum X2021-T8 E31, Aluminum 2219-T81, and Aluminum 7039-T64. The first four materials were 0.063-inch thick; the last two were 0.125-inch thick. Sufficient specimens were manufactured to evaluate all of the alloys at four test temperatures, namely: room temperature, -110 deg F, -320 deg F, and -423 deg F. Tensile, notched tensile, center notched and single edge notch tests were performed at -423 deg F for all alloys. In addition, the INCO 718 and X2021 aluminum alloys were investigated at the three other temperatures. An attempt was made to obtain both plane stress and plane strain fracture toughness data from the same center notched specimen. Except for the titanium alloys, the net fracture stress exceeded 80 percent of the yield strength for all alloys and test temperatures. In all cases, the net stress at pop-in was well below the yield strength of the material." @default.
- W257834233 created "2016-06-24" @default.
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- W257834233 date "1967-11-01" @default.
- W257834233 modified "2023-09-27" @default.
- W257834233 title "FRACTURE DATA FOR MATERIALS AT CRYOGENIC TEMPERATURES" @default.
- W257834233 hasPublicationYear "1967" @default.
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