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Title: Nickel aluminide alloys with improved weldability

Abstract

Weldable nickel aluminide alloys which are essentially free, if not entirely free, of weld hot cracking are provided by employing zirconium concentrations in these alloys of greater than 2.6 wt. % or sufficient to provide a substantial presence of Ni--Zr eutectic phase in the weld so as to prevent weld hot cracking. Weld filler metals formed from these so modified nickel aluminide alloys provide for crack-free welds in previously known nickel aluminide alloys.

Inventors:
 [1];  [2]
  1. Knoxville, TN
  2. Lenior City, TN
Issue Date:
Research Org.:
LOCKHEED MARTIN ENRGY SYST INC
OSTI Identifier:
869874
Patent Number(s):
5413876
Application Number:
07/970,757
Assignee:
Martin Marietta Energy Systems, Inc. (Oak Ridge, TN)
DOE Contract Number:  
AC05-84OR21400
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
nickel; aluminide; alloys; improved; weldability; weldable; essentially; free; entirely; weld; hot; cracking; provided; employing; zirconium; concentrations; wt; sufficient; provide; substantial; presence; ni-zr; eutectic; phase; prevent; filler; metals; formed; modified; crack-free; welds; previously; essentially free; weld filler; nickel aluminide; aluminide alloys; aluminide alloy; filler metal; hot cracking; improved weldability; filler metals; modified nickel; /428/148/228/420/

Citation Formats

Santella, Michael L, and Goodwin, Gene M. Nickel aluminide alloys with improved weldability. United States: N. p., 1995. Web.
Santella, Michael L, & Goodwin, Gene M. Nickel aluminide alloys with improved weldability. United States.
Santella, Michael L, and Goodwin, Gene M. Tue . "Nickel aluminide alloys with improved weldability". United States. https://www.osti.gov/servlets/purl/869874.
@article{osti_869874,
title = {Nickel aluminide alloys with improved weldability},
author = {Santella, Michael L and Goodwin, Gene M},
abstractNote = {Weldable nickel aluminide alloys which are essentially free, if not entirely free, of weld hot cracking are provided by employing zirconium concentrations in these alloys of greater than 2.6 wt. % or sufficient to provide a substantial presence of Ni--Zr eutectic phase in the weld so as to prevent weld hot cracking. Weld filler metals formed from these so modified nickel aluminide alloys provide for crack-free welds in previously known nickel aluminide alloys.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1995},
month = {5}
}

Patent:

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