skip to main content
DOE Patents title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Iron aluminide alloys with improved properties for high temperature applications

Abstract

An improved iron aluminide alloy of the DO[sub 3] type is described that has increased room temperature ductility and improved high elevated temperature strength. The alloy system further is resistant to corrosive attack in the environments of advanced energy conversion systems such as those using fossil fuels. The resultant alloy is relatively inexpensive as contrasted to nickel based and high nickel steels currently utilized for structural components. The alloy system consists essentially of 26--30 at. % aluminum, 0.5--10 at. % chromium, 0.02--0.3 at. % boron plus carbon, up to 2 at. % molybdenum, up to 1 at. % niobium, up to 0.5 at. % zirconium, up to 0.1 at. % yttrium, up to 0.5 at. % vanadium and the balance iron. 3 figs.

Inventors:
;
Issue Date:
OSTI Identifier:
7021474
Patent Number(s):
4961903 A
Application Number:
PPN: US 7-319771
Assignee:
Martin Marietta Energy Systems, Inc., Oak Ridge, TN (United States) PTO; EDB-94-116368
DOE Contract Number:  
AC05-84OR21400
Resource Type:
Patent
Resource Relation:
Patent File Date: 7 Mar 1989
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; ALUMINIUM ALLOYS; CORROSION RESISTANCE; DUCTILITY; THERMODYNAMIC PROPERTIES; CHROMIUM ALLOYS; HEAT RESISTING ALLOYS; IRON BASE ALLOYS; BORON ADDITIONS; CARBON ADDITIONS; MOLYBDENUM ADDITIONS; NIOBIUM ADDITIONS; VANADIUM ADDITIONS; YTTRIUM ADDITIONS; ZIRCONIUM ADDITIONS; ALLOYS; BORON ALLOYS; HEAT RESISTANT MATERIALS; IRON ALLOYS; MATERIALS; MECHANICAL PROPERTIES; MOLYBDENUM ALLOYS; NIOBIUM ALLOYS; PHYSICAL PROPERTIES; TENSILE PROPERTIES; VANADIUM ALLOYS; YTTRIUM ALLOYS; ZIRCONIUM ALLOYS; 360104* - Metals & Alloys- Physical Properties; 360105 - Metals & Alloys- Corrosion & Erosion; 360103 - Metals & Alloys- Mechanical Properties

Citation Formats

McKamey, C.G., and Liu, C.T. Iron aluminide alloys with improved properties for high temperature applications. United States: N. p., 1990. Web.
McKamey, C.G., & Liu, C.T. Iron aluminide alloys with improved properties for high temperature applications. United States.
McKamey, C.G., and Liu, C.T. Tue . "Iron aluminide alloys with improved properties for high temperature applications". United States.
@article{osti_7021474,
title = {Iron aluminide alloys with improved properties for high temperature applications},
author = {McKamey, C.G. and Liu, C.T.},
abstractNote = {An improved iron aluminide alloy of the DO[sub 3] type is described that has increased room temperature ductility and improved high elevated temperature strength. The alloy system further is resistant to corrosive attack in the environments of advanced energy conversion systems such as those using fossil fuels. The resultant alloy is relatively inexpensive as contrasted to nickel based and high nickel steels currently utilized for structural components. The alloy system consists essentially of 26--30 at. % aluminum, 0.5--10 at. % chromium, 0.02--0.3 at. % boron plus carbon, up to 2 at. % molybdenum, up to 1 at. % niobium, up to 0.5 at. % zirconium, up to 0.1 at. % yttrium, up to 0.5 at. % vanadium and the balance iron. 3 figs.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1990},
month = {10}
}