公开(公告)号：US06927361B2

公开(公告)日：2005-08-09

申请号：US10655284

申请日：2003-09-04

申请人： Thomas Joseph Kelly ,  Samuel Frank Mastrorocco ,  Earl Claude Helder ,  Eva Z. Lanman ,  Vallerie Althea McGee

发明人： Thomas Joseph Kelly ,  Samuel Frank Mastrorocco ,  Earl Claude Helder ,  Eva Z. Lanman ,  Vallerie Althea McGee

IPC分类号： B23K9/23 ,  B23K9/00 ,  B23K9/167 ,  B23K9/235 ,  B23K31/00 ,  B23K103/04 ,  C21D9/50 ,  C23C8/10 ,  C23C8/80

CPC分类号： B23K9/167 ,  B23K2103/02 ,  C21D9/50 ,  C23C8/10 ,  C23C8/80

摘要： A method for welding iron-based or nickel-based superalloy assemblies into a unitary article. First, the assemblies are heated in an air atmosphere, at a rate suitable to minimize geometric distortion, to a temperature in the range of about 1400F (760C) to about 2000° F. (1090° C.) to form an oxide layer on the surface of the assemblies and optionally as a pre-weld solution heat treat. The temperature of the assemblies are then held in a range of about 1400F (760C) to about 2000° F. (1090° C.) for a time sufficient to form an oxide layer of sufficient thickness on the surface of the assemblies and optionally to solution the assemblies. The assemblies are then cooled to ambient temperature at a rate sufficient to avoid precipitation of unwanted metal phases at a rate sufficient to maintain dimensional stability. The oxide layer is then removed from at least the faying surfaces of the assemblies, but not from the face side of the assemblies. The faying surfaces of the assemblies are then cleaned. The assemblies are then welded using a GTA welding procedure to form a unitary article. The article is then resolutioned at an appropriate temperature for an appropriate period of time, both of which are dependent on the type of superalloy(s) that is present in the welded article and the desired properties. The article is then optionally age heat treated at an appropriate temperature for an appropriate period of time, both of which are dependent on the type of superalloy(s) that is present in the welded unitary article.

摘要翻译： 将铁基或镍基超级合金组件焊接成整体制品的方法。 首先，将组件以适于将几何变形最小化的速率在空气气氛中加热至约1400°F（760℃）至约2000°F（1090℃）的温度，以形成氧化物层 组件的表面和可选地作为预焊接溶液热处理。 然后将组件的温度保持在约1400°F（760℃）至约2000°F（1090℃）的范围内足够长的时间，以在组件的表面上形成足够厚度的氧化物层，并且任选地 解决组件。 然后将组件以足以避免不必要的金属相以足以维持尺寸稳定性的速率沉淀的速率冷却至环境温度。 然后从组件的至少拼接表面除去氧化层，而不是从组件的表面侧去除氧化层。 然后清洁组件的接合表面。 然后使用GTA焊接程序焊接组件以形成整体制品。 然后将物品在合适的温度下分解合适的时间，这两个时间段都取决于焊接制品中存在的超级合金的类型和所需的性能。 然后将制品任意地在合适的温度下对其进行老化热处理适当的时间，这两个时间取决于焊接的整体制品中存在的超级合金的类型。