公开(公告)号：WO1994014990A1

公开(公告)日：1994-07-07

申请号：PCT/US1993007530

申请日：1993-08-12

Applicant: COMBUSTION ENGINEERING, INC.

Inventor： COMBUSTION ENGINEERING, INC. ,  GARDE, Anand, M. ,  PATI, Satya, R.

IPC: C22C16/00

CPC classification number: C22C16/00 ,  G21C3/06 ,  G21Y2002/104 ,  G21Y2004/101 ,  Y02E30/40

Abstract: A stabilized alpha metal matrix provides an improved ductility, creep strength, and corrosion resistance against irradiation in a zirconium alloy containing tin in a range of 0.45 to 0.75 wt. %, and typically 0.6 wt. %; iron in a range of 0.4 to 0.53 wt. %, and typically 0.45 percent; chromium in a range of 0.2 to 0.3 wt. %, and typically 0.25 percent; niobium in a range of 0.3 to 0.5 wt. %, and typically 0.45 wt. %; nickel in a range of 0.012 to 0.03 wt. %, and typically 0.02 wt. %; silicon in a range of 50 to 200 ppm, and typically 100 ppm; and oxygen in a range 1000 to 2000 ppm, and typically 1600 ppm, with the balance zirconium. The addition of iron and niobium improves mechanical properties of the alloy with its lower lever of tin, while corrosion resistance is addressed by having an iron level of 0.45 wt. % and an iron/chromium ratio on the order of 1.5. The addition of niobium also conters the effect of higher iron on the hydrogen absorption characteristics of the alloy. The addition of nickel, silicon, carbon and oxygen as alloying elements provide desired corrosion resistance and strength.

Abstract translation: 稳定的α金属基体在含有0.45-0.75重量％的锡的锆合金中提供了改进的延展性，蠕变强度和耐腐蚀性。 ％，通常为0.6重量％。 ％; 铁在0.4至0.53重量％的范围内。 ％，通常为0.45％; 范围为0.2〜0.3重量％的铬。 ％，通常为0.25％; 铌的范围为0.3〜0.5wt。 ％，通常为0.45wt。 ％; 范围为0.012〜0.03重量％的镍。 ％，通常为0.02重量％。 ％; 在50至200ppm范围内的硅，通常为100ppm; 氧的范围为1000〜2000ppm，通常为1600ppm，余量为锆。 铁和铌的添加改善了合金与其较低的锡的机械性能，而耐腐蚀性通过使铁含量为0.45wt。 ％，铁/铬比约为1.5。 添加铌也意味着高铁对合金的吸氢特性的影响。 添加镍，硅，碳和氧作为合金元素提供所需的耐腐蚀性和强度。

公开(公告)号：WO1994016112A1

公开(公告)日：1994-07-21

申请号：PCT/US1993007529

申请日：1993-08-12

Applicant: COMBUSTION ENGINEERING, INC.

Inventor： COMBUSTION ENGINEERING, INC. ,  GARDE, Anand, M. ,  PATI, Satya, R.

IPC: C22C16/00

CPC classification number: C22C16/00 ,  G21C3/07 ,  G21Y2002/10 ,  G21Y2004/10 ,  Y02E30/40

Abstract: A stabilized alpha metal matrix provides an improved ductility, creep strength, and corrosion resistance against irradiation in a zirconium alloy containing on a weight percentage basis tin in a range of 0.4 to 1.0 percent and typically 0.5; iron in a range of 0.3 to 0.6 percent, and typically 0.46 percent; chromium in a range of 0.2 to 0.4 percent, and typically 0.23 percent; silicon in a range of 50 to 200 ppm, and typically 100 ppm; and oxygen in a range of 1200 to 2500 ppm, typically 1800 to 2200 ppm. The high oxygen level assists in reducing hydrogen uptake of the alloy compared to Zircaloy-4, for example.

Abstract translation: 稳定的α金属基体提供改善的延展性，蠕变强度和抗锆合金耐辐射性，所述锆合金以重量百分比计含有0.4至1.0％且通常为0.5的锡; 铁在0.3％至0.6％的范围内，通常为0.46％; 范围为0.2〜0.4％，通常为0.23％的铬; 在50至200ppm范围内的硅，通常为100ppm; 和1200至2500ppm范围内的氧，通常为1800至2200ppm。 例如，与Zircaloy-4相比，高氧水平有助于降低合金的氢吸收。