公开(公告)号：US20180230822A1

公开(公告)日：2018-08-16

申请号：US15432398

申请日：2017-02-14

Applicant: GENERAL ELECTRIC COMPANY

Inventor： Stephen Joseph BALSONE ,  Dwight Eric DAVIDSON ,  Michael Francis Xavier GIGLIOTTI, JR. ,  Pazhayannur Ramanathan SUBRAMANIAN ,  Akane SUZUKI

IPC: F01D5/28 ,  C22C14/00 ,  F01D5/02

CPC classification number: F01D5/28 ,  C22C14/00 ,  F01D5/02 ,  F05D2300/174

Abstract: In some embodiments, a gamma titanium aluminide alloy consists essentially of, in atomic percent, about 38 to about 50% aluminum, about 6% niobium, about 0.25 to about 2% tungsten, optionally up to about 1.5% boron, about 0.01 to about 1.0% carbon, optionally up to about 2% chromium, optionally up to about 2% vanadium, optionally up to about 2% manganese, and the balance titanium and incidental impurities. In some embodiments, the gamma titanium aluminide alloy forms at least a portion of a gas turbine component. In some embodiments, a gamma titanium aluminide alloy, consisting essentially of, in atomic percent, about 40 to about 50% aluminum, about 3 to about 5% niobium, about 0.5 to about 1.5% tungsten, about 0.01 to about 1.5% boron, about 0.01 to about 1.0% carbon, optionally up to about 2% chromium, optionally up to about 2% vanadium, optionally up to about 2% manganese, and the balance titanium and incidental impurities.

公开(公告)号：US20180230576A1

公开(公告)日：2018-08-16

申请号：US15432513

申请日：2017-02-14

Applicant: GENERAL ELECTRIC COMPANY

Inventor： Stephen Joseph BALSONE ,  Dwight Eric DAVIDSON ,  Michael Francis Xavier GIGLIOTTI, JR. ,  Pazhayannur Ramanathan SUBRAMANIAN ,  Akane SUZUKI

IPC: C22C14/00 ,  F01D5/02 ,  F01D5/28

CPC classification number: C22C14/00 ,  C22F1/183 ,  F01D5/02 ,  F01D5/28 ,  F05D2220/30 ,  F05D2300/174

Abstract: In some embodiments, a gamma titanium aluminide alloy consists essentially of, in atomic percent, 38 to about 50% aluminum, 1 to about 6% niobium, 0.25 to about 2% tungsten, 0.01 to about 1.5% boron, up to about 1% carbon, optionally up to about 2% chromium, optionally up to about 2% vanadium, up to about 2% manganese, and the balance titanium and incidental impurities. In some embodiments, the gamma titanium aluminide alloy forms at least a portion of a gas turbine component. In some embodiments, a gamma titanium aluminide alloy, consists essentially of, in atomic percent, about 40 to about 50% aluminum, about 1 to about 5% niobium, about 0.3 to about 1% tungsten, about 0.1 to about 0.3% boron, up to about 0.1% carbon, up to about 2% chromium, up to about 2% vanadium, up to about 2% manganese, up to about 1% molybdenum, and the balance titanium and incidental impurities.