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Abstract:
Uniaxial creep-to-rupture tests at 550 and 600 °C under a constant load of 300 MPa have been performed to study the effect of lead-bismuth eutectic (LBE) on the creep failure behavior of a solution-annealed 15-15Ti steel. The results show that the secondary creep rate of the steel tested in LBE at 550 and 600 °C is 56 and 6 times higher than that tested in air at the same temperatures, respectively. The transition time from the primary creep to the secondary creep is largely shortened by LBE. As a consequence, the creep life of 15-15Ti in contact with LBE is reduced remarkably. The severe degradation of the creep performance is attributed to uniform dissolution corrosion (elemental leaching) and especially localized intergranular cracking. © 2020 Elsevier B.V.
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Materials Science and Engineering A
ISSN: 0921-5093
Year: 2020
Volume: 798
5 . 2 3 4
JCR@2020
6 . 1 0 0
JCR@2023
ESI HC Threshold:196
JCR Journal Grade:1
CAS Journal Grade:2
Cited Count:
WoS CC Cited Count: 0
SCOPUS Cited Count: 26
ESI Highly Cited Papers on the List: 0 Unfold All
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30 Days PV: 0
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