| Autor: |
Vorob'ev, E. E., Peregud, M. M., Khokhunova, T. N., Mileshkina, O. Yu., Bekrenev, S. A., Markelov, V. A., Shtremel', M. A. |
| Zdroj: |
Russian Metallurgy (Metally); Oct2019, Vol. 2019 Issue 10, p1112-1124, 13p |
| Abstrakt: |
29 tubes made of an E110 alloy for VVER and PWR reactors are subjected to creep tests under external pressure (temperature of 350 and 380°C, circumferential stress of 70–130 MPa, holding time up to 4250 h). Creep is found to be accelerated after deformation up to 0.9% and ovality up to b/a = 0.86 and is ended in the collapse of a tube. The equations of tube equilibrium and creep under pressure are generalized for tubes of any ovality (ellipses of any eccentricity). The solutions to these equations predict the presence of a general curve in the contour length–eccentricity coordinates and give tube instability conditions under pressure. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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