Invention Grant
- Patent Title: Unidirectional solidification process and apparatus and single-crystal seed therefor
- Patent Title (中): 单向凝固工艺及设备及单晶种子
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Application No.: US13851075Application Date: 2013-03-26
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Publication No.: US09144842B2Publication Date: 2015-09-29
- Inventor: Ganjiang Feng , Gregory Keith Bouse , Kenneth Burrell Potter , Andrew John Elliott , Shan Liu
- Applicant: Ganjiang Feng , Gregory Keith Bouse , Kenneth Burrell Potter , Andrew John Elliott , Shan Liu
- Applicant Address: US NY Schenectady
- Assignee: General Electric Company
- Current Assignee: General Electric Company
- Current Assignee Address: US NY Schenectady
- Agent Ernest G. Cusick; Gary M. Hartman; Michael D. Winter
- Main IPC: B22D27/04
- IPC: B22D27/04 ; C30B11/14 ; C30B29/52
Abstract:
A single-crystal seed, apparatus and process for producing a casting having a single-crystal (SX) microstructure. The seed has a geometry that includes a vertex capable of destabilizing an oxide film that forms at the interface between the seed and a molten metal during the casting process, and thereby promotes a continuous single-crystal grain growth and reduces grain misorientation defects that can initiate from the seed/metal interface.
Public/Granted literature
- US20130206352A1 UNIDIRECTIONAL SOLIDIFICATION PROCESS AND APPARATUS AND SINGLE-CRYSTAL SEED THEREFOR Public/Granted day:2013-08-15
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