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Insert material for solid phase diffusion welding for nickel base superalloy and method therefor
Insert material for solid phase diffusion welding for nickel base superalloy and method therefor
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机译:用于镍基高温合金的固相扩散焊接的插入材料及其方法
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摘要
In solid phase diffusion welding of a nickel base superalloy having nickel as a main component, an insert material for solid phase diffusion welding and method thereof are disclosed which can improve the welding strength, the insert material consists of an alloy containing 5- 25% by atomic % of total atomic amount of at least one selected from aluminum, titanium, tantalum and niobium, [100-(total atomic % of aluminum, titanium, tantalum and niobium)×4] % or less by atomic % of total atomic amount of at least one selected from chromium, cobalt, tungsten, molybdenum and zirconium and the balance being substantially nickel. PPAfter this insert material is previously subjected to heat treatment at between 700° C. and melting point or plastic working, it is interposed between the welded surfaces and heated up to a temperature of the melting point or less of base metal in vacuum or inactive gas solid phase diffusion welding.
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