Invention Grant
- Patent Title: Modified articles, coated articles, and modified alloys
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Application No.: US15255383Application Date: 2016-09-02
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Publication No.: US10253396B2Publication Date: 2019-04-09
- Inventor: Jon Conrad Schaeffer , Shan Liu , Martin M. Morra , Michael Douglas Arnett
- Applicant: GENERAL ELECTRIC COMPANY
- Applicant Address: US NY Schenectady
- Assignee: GENERAL ELECTRIC COMPANY
- Current Assignee: GENERAL ELECTRIC COMPANY
- Current Assignee Address: US NY Schenectady
- Agency: McNess Wallace & Nurick LLC
- Main IPC: C22C19/05
- IPC: C22C19/05 ; F01D5/28 ; F01D9/04 ; F01D25/00 ; C22C19/03 ; C22C30/00 ; C22C45/00 ; C22C45/04 ; C22F1/10

Abstract:
A modified alloy is disclosed including a base alloy composition and an additive gamma prime antioxidant. The base alloy composition includes a concentration of a gamma prime antioxidant less than an effective concentration of the gamma prime antioxidant. The additive gamma prime antioxidant is intermixed with the base alloy composition to form the modified alloy, preferentially segregating to a gamma prime phase of the modified alloy and increasing the concentration of the gamma prime antioxidant to be at least the effective concentration of the gamma prime antioxidant. The effective concentration imparts reduced oxidation susceptibility of the gamma prime phase. An article is disclosed including the modified alloy. A coated article is disclosed including a coating disposed on a surface of an article having the base alloy composition. The coated article includes a reduced stress accelerated gamma prime oxidation static crack growth susceptibility in comparison with the base alloy composition.
Public/Granted literature
- US20180066341A1 MODIFIED ARTICLES, COATED ARTICLES, AND MODIFIED ALLOYS Public/Granted day:2018-03-08
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