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Nickel-base having improved low angle grain boundary resistance was for the production of single crystal articles - superalloys

机译：具有改善的低角晶界电阻的镍基用于生产单晶制品-高温合金

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PURPOSE: To obtain the Ni-base superalloy useful, e.g. for a rotary blade for aircraft gas turbine and castable into a single crystal product by specifying respective contents of Cr, Co, Mo, W, Ta, Cb, etc., and improving grain boundary strength. ;CONSTITUTION: The Ni-base superalloy has a composition consisting of, by weight, 7-12% Cr, 5-15% Co, 0.5-5% Mo, 3-12% W, 2-6% Ta, 2-5% Ti, 3-5% Al, 0-2% Cb, 0-2% Hf, 0.03-0.25% C, 0.002-0.05% B, and the balance Ni. In this Ni-base superalloy, low-angle grain boundary resistance is improved, and also the balance between cycle oxidation and high temp. corrosion resistance can be improved by the increase in the ratio between C and Hf and the ratio between Al and Ti.;COPYRIGHT: (C)1993,JPO
机译：目的：获得有用的镍基高温合金，例如通过规定Cr，Co，Mo，W，Ta，Cb等的各自含量，并提高晶界强度，来制造用于飞机燃气轮机的旋转叶片并可铸造成单晶产品。 ;组成：Ni基高温合金的成分为7-12％Cr，5-15％Co，0.5-5％Mo，3-12％W，2-6％Ta，2-5 ％的Ti，3-5％的Al，0-2％的Cb，0-2％的Hf，0.03-0.25％的C，0.002-0.05％的B和余量的Ni。在该Ni基高温合金中，低角度晶界电阻得到改善，并且循环氧化和高温之间的平衡也得到了改善。 C和Hf之比和Al与Ti之比的增加可以提高耐蚀性。;版权所有：（C）1993，日本特许厅

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