B - Operations – Transporting – 21 – B
Patent
B - Operations, Transporting
21
B
B21B 23/00 (2006.01) B21B 3/00 (2006.01) B21B 37/74 (2006.01) C22C 16/00 (2006.01)
Patent
CA 2524754
Tubes for use in nuclear reactors made from two zirconium base alloys: one is a binary alloy containing mainly 2.5-2.8 wt.% Nb, 0.1-0.13 wt.% O, 0.05-0.13 wt% Fe, the balance of Zr, and the other is a multicomponent alloy containing 0.9-1.2 wt.% niobium, 1.1-1.42 wt.% tin, 0.3-0.47 wt.% iron, 0.05-0.12 wt.% oxygen, the balance of zr and a method to manufacture the said tubes with such characteristics where the DHC velocity is lower than 6×10-8 m/s at 250 °C, the threshold stress intensity factor is not less than 10 MPa~m at 250 °C, fracture toughness resistance, dJ/da, is larger than 250 MPa at 250 °C and the tensile strength exceeds 480 MPa at 300 °C.
Aktuganova Elena Nikolaevna
Belov Vladimir Ivanovich
Cheong Yong Moo
Im Kyung Soo
Kim Sung Soo
Federal State Unitary Enterprise A.a. Bochvar All-Russia Research Insti Tute Of Inorganic Materia
Korea Atomic Energy Research Institute
Norton Rose Or S.e.n.c.r.l. S.r.l./llp
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