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公开(公告)号：US5527403A
公开(公告)日：1996-06-18
申请号：US507875
申请日：1995-07-27
CPC分类号： C22F1/10 , C22C19/058
摘要： A method of heat treating articles cast of a superalloy, comprising a nickel-base alloy capable of forming a chromium carbide precipitate, such as INCONEL 939.TM.. The method includes selective heating of the article to cause chromium and carbon nuclei in the lattice of the crystals in the superalloy to go into solution, and selective cooling of the article to cause the formation of discrete chromium carbide nuclei along the grain boundary of the crystals. Additional heating steps may be performed to enhance the size of the chromium carbide nuclei. Articles so treated have improved mechanical properties.
摘要翻译： 一种热处理由超合金制成的制品的方法，该方法包括能够形成碳化铬沉淀物的镍基合金，例如INCONEL 939 TM。 该方法包括选择性加热制品以使超高合金晶体的晶格中的铬和碳原子进入溶液中，并选择性地冷却制品以沿晶体的晶界形成离散的碳化铬核 。 可以进行另外的加热步骤以增加碳化铬核的尺寸。 如此处理的物品具有改善的机械性能。
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公开(公告)号：US4662951A
公开(公告)日：1987-05-05
申请号：US565489
申请日：1983-12-27
申请人： Edgar E. Brown , Robert W. Hatala
发明人： Edgar E. Brown , Robert W. Hatala
摘要： Heat treatments are described which improve subsequent HIP treatment results of superalloy articles. The heat treatments substantially eliminate certain low melting phases which otherwise would cause problems relating to gas entrapment during a HIP process. The articles are heated to a temperature near but below the intended HIP temperature for a period of time sufficient to reduce the low melting phase.
摘要翻译： 描述了热处理，其改善了超合金制品的后续HIP处理结果。 热处理基本上消除了某些低熔点相，否则在HIP工艺过程中会引起与气体截留有关的问题。 将制品加热至接近但低于预期HIP温度的温度足以降低低熔点相的时间。
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