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发明公开
CN106319369A 一种核燃料包壳材料用FeCrAl基合金材料 无效 - 驳回

一种核燃料包壳材料用FeCrAl基合金材料
摘要：
本发明涉及一种核燃料包壳材料用FeCrAl基合金材料，以所述FeCrAl基合金材料的总重量为基准，所述合金材料由以下组分组成：Cr 6%~16%；Al 3%~8%；Y 0.001%~1%；Mo 0.1%~4%；Si 0.01%~0.5%；C 0.001%~0.5%；N≤500ppm；O≤1000ppm；P≤500ppm；S≤500ppm；余量为Fe。本发明的FeCrAl基合金在1200℃水蒸气环境中表现出优异的抗氧化性能，具有优良的事故容错能力，明显优于Zr基合金，且加工性能良好，可在核电站压水堆中用作燃料元件包壳、燃料元件复合包壳、燃料包壳涂层以及定位格架条带等堆芯结构材料。
摘要（英）：

The invention relates to a FeCrAl base alloy material for a nuclear fuel cladding material. With the total weight of the FeCrAl base alloy material as a standard, the alloy material comprises 6%-16% of Cr, 3%-8% of Al, 0.001%-1% of Y, 0.1%-4% of Mo, 0.01%-0.5% of Si, 0.001%-0.5% of C, less than or equal to 500 ppm of N, less than or equal to 1000 ppm of O, less than or equal to 500 ppm of P, less than or equal to 500 ppm of S and the balance Fe. A FeCrAl base alloy shows the excellent antioxygenic property in the 1200 DEG C vapor environment, the excellent accident fault-tolerant ability is achieved and is obviously superior to that of a Zr base alloy, the machining performance is good, and the FeCrAl base alloy material can be used as core structural materials such as fuel element cladding, fuel element composite cladding, fuel cladding coatings and positioning grillage stripes in nuclear power station pressurized water reactors.

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