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公开(公告)号：US4040876A
公开(公告)日：1977-08-09
申请号：US485465
申请日：1974-07-02
CPC分类号： G21C3/07 , C22C38/44 , Y02E30/40 , Y10S376/90
摘要： An alloy consisting essentially of from about 14% to 19% chromium, from 25 to 35% of nickel, from about 2% to 3% molybdenum, from about 0.1% to 1% of silicon, up to 0.5% of manganese, from about 0.03 to 0.05% carbon, up to about 0.01% sulfur, up to about 0.01% of phosphorus, up to 0.01% boron, up to about 0.01% oxygen, up to about 0.02% nitrogen, small amounts of incidental impurities, and the balance being iron, the alloy having an N.sub.v (average electron vacancy number) value of between 1.6 and 2.8, has an unexpected combination of properties enabling it to be formed by hot and cold working and heat treatment into components and members particularly suitable for use in nuclear reactors wherein the components are subjected to molten sodium, where the corrosion of the surface of the alloy is not in excess of the order of 1 to 2 mils per year, and the alloy exhibits low swelling when exposed to intense radiation, while exhibiting good physical properties at temperatures of up to 1325.degree. F. Worked and heat treated alloy members are usable as fuel cladding, grid supports, ducts and other sodium contacting in-core components that may be spaced in close predetermined relationship to ensure high reactor performance, particularly in breeder reactors, for the desired useful life thereof.
摘要翻译： 基本上由约14％至19％的铬，25至35％的镍，约2％至3％的钼，约0.1％至1％的硅，至多0.5％的锰，从约 0.03至0.05％的碳，至多约0.01％的硫，至多约0.01％的磷，至多0.01％的硼，至多约0.01％的氧，至多约0.02％的氮，少量附带的杂质，以及余量 作为铁，具有1.6至2.8之间的Nv（平均电子空位数）值的合金具有预期的特性组合，使得其能够通过热和冷加工形成，并且热处理成特别适合用于核的部件和部件 其中组分经受熔融钠的反应器，其中合金表面的腐蚀不超过每年1至2密耳的数量级，并且当暴露于强烈辐射时，合金表现出低膨胀，同时呈现良好的物理 特性温度高达1325°F 工作和热处理的合金构件可用作燃料包层，网格支撑件，管道和其它可接近预定关系的钠接触核心部件，以确保高的反应器性能，特别是在增殖反应器中的期望使用寿命 。
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公开(公告)号：US4971650A
公开(公告)日：1990-11-20
申请号：US411129
申请日：1989-09-22
CPC分类号： C30B15/14 , C30B15/22 , C30B15/34 , Y10S117/904
摘要： A method of tailoring the heat balance of the outer edge of the dendrites adjacent the meniscus to produce thinner, smoother dendrites, which have substantially less dislocation sources contiguous with the dendrites, by changing the view factor to reduce radiation cooling or by irradiating the dendrites with light from a quartz lamp or a laser to raise the temperature of the dendrites.
摘要翻译： 一种调整邻近弯液面的树枝状外缘的热平衡的方法，以产生更薄，更平滑的树突，其具有基本上较少的与枝晶毗邻的位错源，通过改变观察因子以减少辐射冷却或通过用 来自石英灯或激光的光提高树突的温度。
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