一種直熱式氧化物陰極的基金屬鎳鈷鎢合金
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 長期以來,氧化物陰極基金屬一般都采用鎳鎂、鎳硅等鎳合金。但用它們作直熱式陰極時,在強(qiáng)度和熱變形等方面都不能很好滿足要求,如用在直熱式發(fā)射管FD-422中,就常出現(xiàn)陰極斷裂、高壓跳火,掉粉等問題。為了解決這一問題,我們研制出一種Ni-Co-W合金。用杯卣熱式發(fā)射管FD-422中,得到較好效果
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關(guān)鍵詞:
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. -
《重有色金屬材料加工手冊》編寫組編,重有色金屬材料加工手冊,第一分冊,冶金工業(yè)出版社,第287頁.[2]А.А.Бочвар著,唐棣生等譯,金屬學(xué),冶金工業(yè)出版社,1960,第233頁.[3]Б.Г.Аившиц著,王潤等譯.金屬與合金的物理性能,冶金工業(yè)出版社,1959.第215頁. -
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