一种直热式氧化物阴极的基金属镍钴钨合金
A KIND OF BASE METAL FOR DIRECTLY HEATED OXIDE-COATED CATHODE-Ni-Co-W ALLOY
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摘要: 正 一、引言 长期以来,氧化物阴极基金属一般都采用镍镁、镍硅等镍合金。但用它们作直热式阴极时,在强度和热变形等方面都不能很好满足要求,如用在直热式发射管FD-422中,就常出现阴极断裂、高压跳火,掉粉等问题。为了解决这一问题,我们研制出一种Ni-Co-W合金。用杯卣热式发射管FD-422中,得到较好效果
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关键词:
Abstract: This paper discusses the characteristic of Ni-Co-W alloy which has high strength, low recrystallization, high resistivity and good processability. In addition, it contains both fast and slow reducing agents. This alloy has been used in the transmitting tube FD-422. The result indicates that it is a good base metal for directly heated Oxide-Coated Cathode. -
《重有色金属材料加工手册》编写组编,重有色金属材料加工手册,第一分册,冶金工业出版社,第287页.[2]А.А.Бочвар著,唐棣生等译,金属学,冶金工业出版社,1960,第233页.[3]Б.Г.Аившиц著,王润等译.金属与合金的物理性能,冶金工业出版社,1959.第215页. -
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