摘要:
An article includes a body that has a first section and a second section bonded with the first section. The first section is formed with a first material that has a first microstructure and the second section is formed of a second material that has a second, different microstructure.
摘要:
The rigidity of bristles in a direction of pressure difference between a high-pressure side and a low-pressure side is increased, the rigidity in a direction orthogonal to the direction of pressure difference is decreased, thereby reducing the wear of bristles, and also the leakage of sealed fluid is reduced. Provided is a brush seal having: a bristle part formed by multiple bristles attached to a stationary part between the stationary part and a rotational part that undergo relative motion by maintaining a space in between; and a back plate attached adj acent to the bristle part on its low-pressure side to restrict the movement of the bristle part, wherein such brush seal for sealing fluid flowing between the stationary part and rotational part is characterized in that the bristle part formed by multiple bristles is such that the multiple bristles arranged in the direction of pressure difference between the high-pressure side and low-pressure side are mutually fixed between a base end and a free end to form planar bristles and these planar bristles are arranged continuously in layers in a circumferential direction to form the circular bristle part; and wherein circumferential grooves are formed on the sealing face of the bristle part on its free end side.
摘要:
A method for casting comprising: providing a seed (84), the seed characterized by: an arcuate form and a crystalline orientation progressively varying along an arc of the form; providing molten material (123; 360'); and cooling and solidifying the molten material so that a crystalline structure of the seed propagates into the solidifying material.
摘要:
A method of manufacturing a replacement body (99) for a component (W) is provided. The method includes the steps of: a) additively manufacturing a crucible (100) for casting of the replacement body (99); b) solidifying a metal material within the crucible (100) to form a directionally solidified microstructure within the replacement body (99); and c) removing the crucible (100) to reveal the directionally solidified replacement body (99).
摘要:
Cast dual alloy turbine rotor disk and method of forming the same are provided. The disk includes a ring (104) and a blade (106). The ring (104) comprises a superalloy that includes a plurality of elements, and the blade (106) extends from the ring. The blade (106) comprises a non-metallic ceramic matrix composite, and at least one element from the superalloy of the ring (104) is diffused into the non-metallic ceramic matrix composite of the blade.
摘要:
Die vorliegende Erfindung betrifft ein Verfahren zur Herstellung und Reparatur von Bauteilen einer Strömungsmaschine, insbesondere eines Flugtriebwerks, bei welchem eine Grundkomponente aus einer Nickelbasis - Superlegierung hergestellt oder bereitgestellt wird (Schritt 1 oder 2), wobei eine Alterungsglühung (5) vor Fertigstellung des Bauteils und nach der letzten Wärmebehandlung und/oder thermomechanischen Behandlung bei einer Temperatur von mehr als 1100°C durchgeführt wird.
摘要:
A turbine exhaust case has an outer housing to be secured within a gas turbine engine and a central hub. Struts extend between the outer housing and the central hub. The struts are formed at least in part of a first material. The central hub is formed at least in part of a second material.
摘要:
An arrangement for a turbomachine (10) includes a vane (40) for directing a hot gas during the operation of the turbomachine (10), a stator ring (62) for securing the vane (40), a heat shield (60) for protecting the stator ring (62) from the hot gas flow (72), wherein the heat shield (60) is arranged in downstream direction of the hot gas flow (72) in front of the stator ring (62) and the heat shield (60) comprises a plurality of channels (86) formed therein for directing a cooling air (84) .
摘要:
A method of forming a metal single crystal turbine component (10) with internal passageways includes forming a polycrystalline turbine blade with internal passageways by additive manufacturing and filling the passageways with a core ceramic slurry. The ceramic slurry is then treated to harden the core (20) and the turbine component is encased in a ceramic shell which is treated to form a ceramic mold. The turbine component in the mold is then melted and directionally solidified in the form of a single crystal. The outer shell and inner ceramic core are then removed to form a finished single crystal turbine component with internal passageways.