公开(公告)号：WO2013081770A1

公开(公告)日：2013-06-06

申请号：PCT/US2012/063142

申请日：2012-11-02

Applicant: ATI PROPERTIES, INC.

Inventor： MCDEVITT, Erin T.

IPC: C22C19/05

CPC classification number: C22C19/056 ,  C22C19/055 ,  C22F1/10

Abstract: A method for heat treating a 718-type nickel-base comprises heating a 718-type nickel-base alloy to a heat treating temperature, and holding the alloy at the heat treating temperature for a heat treating time sufficient to form an equilibrium or near- equilibrium concentration of δ-phase grain boundary precipitates within the nickel-base alloy and up to 25 percent by weight of total γ'-phase and y"-phase. The 718-type nickel-base alloy is air cooled. The present disclosure also includes a 718-type nickel-base alloy comprising a near-equilibrium concentration of δ-phase grain boundary precipitates and up to 25 percent by weight of total γ'-phase and y"-phase precipitates. Alloys according to the disclosure may be included in articles of manufacture such as, for example, face sheet, honeycomb core elements, and honeycomb panels for thermal protection systems for hypersonic flight vehicles and space vehicles.

Abstract translation: 用于热处理718型镍基的方法包括将718型镍基合金加热至热处理温度，并将该合金在热处理温度下保持足以形成平衡或近似的热处理时间， 镍基合金中δ相晶界析出物的平衡浓度高达总伽马相和y“相的25％（重量），718型镍基合金是空气冷却的，本发明还涉及 包括718型镍基合金，其包含近平衡浓度的δ相晶界析出物和高达25重量％的总γ-相和y“相沉淀物。 根据本公开的合金可以包括在制造品中，例如面板，蜂窝芯元件和用于超音速飞行器车辆和太空车辆的热保护系统的蜂窝板。

公开(公告)号：WO2014133718A9

公开(公告)日：2014-09-04

申请号：PCT/US2014/014405

申请日：2014-02-03

Applicant: ATI PROPERTIES, INC.

Inventor： FORBES JONES, Robin M. ,  MCDEVITT, Erin T.

IPC: C21D8/00 ,  C21D11/00 ,  C22C38/00 ,  C22C38/42 ,  C22C38/44 ,  C22C38/46 ,  C22C38/48 ,  C22C38/50 ,  C22C38/52 ,  C22C38/58

Abstract: A method of processing a workpiece to inhibit precipitation of intermetallic compounds includes at least one of thermomechanically processing and cooling a workpiece including an austenitic alloy. During the at least one of thermomechanically working and cooling the workpiece, the austenitic alloy is at temperatures in a temperature range spanning a temperature just less than a calculated sigma solvus temperature of the austenitic alloy down to a cooling temperature for a time no greater than a critical cooling time.

公开(公告)号：EP2898105A1

公开(公告)日：2015-07-29

申请号：EP14705448.0

申请日：2014-02-03

Applicant: ATI Properties, Inc.

Inventor： FORBES JONES, Robin M. ,  MCDEVITT, Erin T.

IPC: C21D8/00 ,  C21D11/00 ,  C22C38/00 ,  C22C38/42 ,  C22C38/44 ,  C22C38/46 ,  C22C38/48 ,  C22C38/50 ,  C22C38/52 ,  C22C38/58

Abstract: A method of processing a workpiece to inhibit precipitation of intermetallic compounds includes at least one of thermomechanically processing and cooling a workpiece including an austenitic alloy. During the at least one of thermomechanically working and cooling the workpiece, the austenitic alloy is at temperatures in a temperature range spanning a temperature just less than a calculated sigma solvus temperature of the austenitic alloy down to a cooling temperature for a time no greater than a critical cooling time.

公开(公告)号：EP2785886A1

公开(公告)日：2014-10-08

申请号：EP12783832.4

申请日：2012-11-02

Applicant: ATI Properties, Inc.

Inventor： MCDEVITT, Erin T.

IPC: C22C19/05

CPC classification number: C22C19/056 ,  C22C19/055 ,  C22F1/10

Abstract: A method for heat treating a 718-type nickel-base comprises heating a 718-type nickel-base alloy to a heat treating temperature, and holding the alloy at the heat treating temperature for a heat treating time sufficient to form an equilibrium or near- equilibrium concentration of δ-phase grain boundary precipitates within the nickel-base alloy and up to 25 percent by weight of total γ'-phase and y"-phase. The 718-type nickel-base alloy is air cooled. The present disclosure also includes a 718-type nickel-base alloy comprising a near-equilibrium concentration of δ-phase grain boundary precipitates and up to 25 percent by weight of total γ'-phase and y"-phase precipitates. Alloys according to the disclosure may be included in articles of manufacture such as, for example, face sheet, honeycomb core elements, and honeycomb panels for thermal protection systems for hypersonic flight vehicles and space vehicles.

Abstract translation: 用于热处理718型镍基的方法包括将718型镍基合金加热至热处理温度，并将合金保持在热处理温度下进行足够的热处理时间以形成平衡或接近 镍基合金中δ相晶界析出物的平衡浓度高达总γ相和γ相的25％（重量）。 718型镍基合金是空气冷却的。 本公开还包括718型镍基合金，其包含近平衡浓度的δ相晶界析出物和高达25重量％的总γ相和γ'相析出物。 根据本公开的合金可以包括在制造品中，例如面板，蜂窝芯元件和用于超音速飞行器车辆和太空车辆的热保护系统的蜂窝板。