公开(公告)号：US20160023439A1

公开(公告)日：2016-01-28

申请号：US14337850

申请日：2014-07-22

Applicant: GENERAL ELECTRIC COMPANY

Inventor： Qi Zhao ,  Steve John Buresh ,  Voram Supatarawanich Dheeradhada ,  Judson Sloan Marte ,  Wanming Zhang

IPC: B32B15/01 ,  B23K31/02 ,  C22C14/00 ,  C22F1/18 ,  C22C19/03 ,  B23K20/02 ,  C22F1/10

CPC classification number: B32B15/017 ,  B23K20/02 ,  B23K20/233 ,  B23K2103/10 ,  B23K2103/14 ,  B23K2103/18 ,  B23K2103/26 ,  B23K2103/52 ,  C22C14/00 ,  C22C19/03 ,  C22C30/00 ,  C22F1/10 ,  C22F1/183

Abstract: Methods for joining dissimilar high-temperature alloys are provided, along with articles, such as turbine airfoils, formed by the method. The method comprises interposing a barrier material between a first segment and a second segment to form a segment assembly. The first segment comprises a titanium aluminide material, and the second segment comprises a nickel alloy. The barrier material comprises a primary constituent element present in the barrier material at a concentration of at least about 30 weight percent of the barrier material, and the primary constituent element is a transition metal element of Group 1B, Group 4B (excluding titanium and zirconium), Group 5B, Group 6B, Group 7B, or Group 8B (excluding nickel). The segment assembly is bonded in the solid state at a combination of temperature, pressure, and time effective to produce a metallurgical joint between the first and second segments, thereby forming an intermediate article; and the intermediate article is heat treated to form a bonded article.

Abstract translation: 提供了连接不同的高温合金的方法，以及通过该方法形成的诸如涡轮机翼的制品。 该方法包括在第一段和第二段之间插入阻挡材料以形成段组件。 第一段包括铝化钛材料，第二段包括镍合金。 阻挡材料包含以阻挡材料的至少约30重量％的浓度存在于阻隔材料中的主要构成元素，并且主要构成元素是1B族，第4B族（不包括钛和锆）的过渡金属元素， ，5B组，6B组，7B组或8B组（不含镍）。 段组件以固体状态结合，温度，压力和时间的组合有效地在第一和第二段之间产生冶金接头，从而形成中间制品; 并且中间制品被热处理以形成粘合制品。