Zirconium based alloys having excellent creep resistance
    1.
    发明公开
    Zirconium based alloys having excellent creep resistance 有权
    Legierung auf der Basis von Zirkonium mit sehr guter Kriechfestigkeit

    公开(公告)号:EP1688508A1

    公开(公告)日:2006-08-09

    申请号:EP05007163.8

    申请日:2005-04-01

    IPC分类号: C22C16/00

    CPC分类号: C22C16/00 C22F1/186

    摘要: The present invention relates to a zirconium based alloy composite having an excellent creep resistance and, more particularly, to a zirconium based alloy composite finally heat -treated to have the degree of recrystallization in the range of 40-70% in order to improve the creep resistance. The zirconium based alloy comprises 0.8∼1.8 wt.% niobium(Nb); 0.38∼0.50 wt.% tin(Sn); one or more elements selected from 0.1∼0.2 wt.% iron(Fe), 0.0 5~0.15 wt.% copper(Cu), and 0.12 wt.% chromium(Cr); 0.10∼0.15 wt.% oxygen(O); 0.006∼0.010 wt.% carbon(C); 0.006~0.010 wt.% s ilicon(Si); 0.0005∼0.0020 wt.% sulfur (S); and the balance zirconium(Zr). The zirconium alloy manufactured with the composition in accordance with the present invention has an excellent creep resistance compared to a conventional Zircaloy -4, and may effectively be used as a nuclear cladding tube, supporting lattice and inner structures of reactor core in the nuclear power plant utilizing light or heavy water reactor.

    摘要翻译: 本发明涉及具有优异抗蠕变性的锆基合金复合材料,更具体地说,涉及一种锆基合金复合材料,其最终被热处理以具有40-70%范围内的重结晶度,以改善蠕变 抵抗性。 锆基合金包含0.8-1.8重量%的铌(Nb); 锡(锡)0.38〜0.50重量% 选自0.1〜0.2重量%的铁(Fe),0.0〜0.15重量%的铜(Cu)和0.12重量%的铬(Cr)的一种或多种元素; 0.10-0.15重量%氧(O); 0.006-0.010重量%碳(C); 0.006〜0.010重量%的Si(Si); 0.0005¼0.0020重量%硫(S); 余量为锆(Zr)。 根据本发明的组合物制造的锆合金与常规的Zircaloy -4相比具有优异的抗蠕变性,并且可以有效地用作核包层管,在核电站中支撑晶格和反应堆芯的内部结构 利用轻水或重水反应堆。