Two phase titanium aluminide alloy
Abstract
A two-phase titanic aluminide alloy having a lamellar microstructure with little intercolony structures. The alloy can include fine particles such as boride particles at colony boundaries and/or grain boundary equiaxed structures. The alloy can include alloying additions such as .ltoreq.10 at % W, Nb and/or Mo. The alloy can be free of Cr, V, Mn, Cu and/or Ni and can include, in atomic %, 45 to 55% Ti, 40 to 50% Al, 1 to 5% Nb, 0.3 to 2% W, up to 1% Mo and 0.1 to 0.3% B. In weight %, the alloy can include 57 to 60% Ti, 30 to 32% Al, 4 to 9% Nb, up to 2% Mo, 2 to 8% W and 0.02 to 0.08% B.
- Inventors:
-
- Midlothian, VA
- Oak Ridge, TN
- Issue Date:
- Research Org.:
- Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
- OSTI Identifier:
- 873658
- Patent Number(s):
- 6214133
- Assignee:
- Chrysalis Technologies, Incorporated (Richmond, VA)
- Patent Classifications (CPCs):
-
C - CHEMISTRY C22 - METALLURGY C22C - ALLOYS
- DOE Contract Number:
- AC05-84OR21400
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- phase; titanium; aluminide; alloy; two-phase; titanic; lamellar; microstructure; intercolony; structures; fine; particles; boride; colony; boundaries; grain; boundary; equiaxed; alloying; additions; ltoreq; 10; nb; free; mn; cu; atomic; 45; 55; 40; 50; weight; 57; 60; 30; 32; 02; 08; fine particles; aluminide alloy; titanium aluminide; grain boundary; fine particle; alloying additions; /148/420/
Citation Formats
Deevi, Seetharama C, and Liu, C T. Two phase titanium aluminide alloy. United States: N. p., 2001.
Web.
Deevi, Seetharama C, & Liu, C T. Two phase titanium aluminide alloy. United States.
Deevi, Seetharama C, and Liu, C T. Mon .
"Two phase titanium aluminide alloy". United States. https://www.osti.gov/servlets/purl/873658.
@article{osti_873658,
title = {Two phase titanium aluminide alloy},
author = {Deevi, Seetharama C and Liu, C T},
abstractNote = {A two-phase titanic aluminide alloy having a lamellar microstructure with little intercolony structures. The alloy can include fine particles such as boride particles at colony boundaries and/or grain boundary equiaxed structures. The alloy can include alloying additions such as .ltoreq.10 at % W, Nb and/or Mo. The alloy can be free of Cr, V, Mn, Cu and/or Ni and can include, in atomic %, 45 to 55% Ti, 40 to 50% Al, 1 to 5% Nb, 0.3 to 2% W, up to 1% Mo and 0.1 to 0.3% B. In weight %, the alloy can include 57 to 60% Ti, 30 to 32% Al, 4 to 9% Nb, up to 2% Mo, 2 to 8% W and 0.02 to 0.08% B.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Mon Jan 01 00:00:00 EST 2001},
month = {Mon Jan 01 00:00:00 EST 2001}
}
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