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公开(公告)号：US10583486B2
公开(公告)日：2020-03-10
申请号：US15397950
申请日：2017-01-04
发明人： Christopher David Gatto , James J Cobb , Aaron Moreth , Alex Holmes , Brian Hann
摘要： A method for hot isostatic pressing includes the steps of providing or obtaining an article of manufacture, which optionally includes a copper or nickel alloy, disposing the article of manufacture in a shroud, the shroud defining an enclosed volume wherein the article of manufacture is disposed, the shroud being configured as a multi-piece joined structure to retard gaseous mass transport from outside the shroud to inside the enclosed volume, disposing the shroud in a containment vessel of a hot isostatic pressing apparatus and disposing a getter material in the shroud and/or in the containment vessel, and introducing an inert gas at an elevated temperature and pressure into the containment vessel for hot isostatic pressing.
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公开(公告)号：US10391554B2
公开(公告)日：2019-08-27
申请号：US15402442
申请日：2017-01-10
发明人： James Piascik , Amer Aizaz , James J Cobb , James S Roundy
IPC分类号： C22C32/00 , B22F1/00 , C22C1/04 , C22C1/10 , B22F5/04 , B22F9/10 , B22F9/04 , B22F5/00 , B22F1/02
摘要： Embodiments of a method for producing powder mixtures having uniform dispersion of ceramic particles within larger superalloy particles are provided, as are embodiments of superalloy powder mixtures. In one embodiment, the method includes producing an initial powder mixture comprising ceramic particles mixed with superalloy mother particles having an average diameter larger than the average diameter of the ceramic particles. The initial powder mixture is formed into a consumable solid body. At least a portion of the consumable solid body is gradually melted, while the consumable solid body is rotated at a rate of speed sufficient to cast-off a uniformly dispersed powder mixture in which the ceramic particles are embedded within the superalloy mother particles.
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