The notch-sensitivity of ordered Zr3Al |
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| Authors: | E.M. Schulson J.A. Roy |
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| Affiliation: | Materials Science Branch, Atomic Energy of Canada Limited, Chalk River Nuclear Laboratories, Chalk River, Ontario KOJ 1J0, Canada |
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| Abstract: | Experiments using notched tensile specimens have established that ordered Zr3Al is inherently notch sensitive. The notchsensitivity ratio, NSR, increases from ?0.7 at temperatures ?435 K to ～-0.9 at temperatures ?575 K. Grain size and trace alloying with boron have negligible effects on the results. Neutron irradiation, on the other hand, suppresses notch-sensitivity and causes notch-strengthening. The NSR data are correlated with fracture mechanisms. |
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