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Title: Apparatus And Method For Producing Single Crystal Metallic Objects

Abstract

A mold is provided for enabling casting of single crystal metallic articles including a part-defining cavity, a sorter passage positioned vertically beneath and in fluid communication with the part-defining cavity, and a seed cavity positioned vertically beneath and in fluid communication with the sorter passage. The sorter passage includes a shape suitable for encouraging a single crystal structure in solidifying molten metal. Additionally, a portion of the mold between the sorter passage and the part-defining cavity includes a notch for facilitating breakage of a cast article proximate the notch during thermal stress build-up, so as to prevent mold breakage or the inclusion of part defects.

Inventors:
 [1];  [2];  [3];  [4];  [5]
  1. Latham, NY
  2. (Scotia, NY)
  3. Duanesburg, NY
  4. Fultonville, NY
  5. Scotia, NY
Issue Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
OSTI Identifier:
880169
Patent Number(s):
7011141
Application Number:
10/652906
Assignee:
General Electric Company (Niskayuna, NY)
Patent Classifications (CPCs):
C - CHEMISTRY C30 - CRYSTAL GROWTH C30B - SINGLE-CRYSTAL-GROWTH
DOE Contract Number:  
AC05-84OR21400
Resource Type:
Patent
Country of Publication:
United States
Language:
English

Citation Formats

Huang, Shyh-Chin, Gigliotti, Jr., Michael Francis X., Rutkowski, Stephen Francis, Petterson, Roger John, and Svec, Paul Steven. Apparatus And Method For Producing Single Crystal Metallic Objects. United States: N. p., 2006. Web.
Huang, Shyh-Chin, Gigliotti, Jr., Michael Francis X., Rutkowski, Stephen Francis, Petterson, Roger John, & Svec, Paul Steven. Apparatus And Method For Producing Single Crystal Metallic Objects. United States.
Huang, Shyh-Chin, Gigliotti, Jr., Michael Francis X., Rutkowski, Stephen Francis, Petterson, Roger John, and Svec, Paul Steven. Tue . "Apparatus And Method For Producing Single Crystal Metallic Objects". United States. https://www.osti.gov/servlets/purl/880169.
@article{osti_880169,
title = {Apparatus And Method For Producing Single Crystal Metallic Objects},
author = {Huang, Shyh-Chin and Gigliotti, Jr., Michael Francis X. and Rutkowski, Stephen Francis and Petterson, Roger John and Svec, Paul Steven},
abstractNote = {A mold is provided for enabling casting of single crystal metallic articles including a part-defining cavity, a sorter passage positioned vertically beneath and in fluid communication with the part-defining cavity, and a seed cavity positioned vertically beneath and in fluid communication with the sorter passage. The sorter passage includes a shape suitable for encouraging a single crystal structure in solidifying molten metal. Additionally, a portion of the mold between the sorter passage and the part-defining cavity includes a notch for facilitating breakage of a cast article proximate the notch during thermal stress build-up, so as to prevent mold breakage or the inclusion of part defects.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2006},
month = {3}
}

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