Oxide strengthened molybdenum-rhenium alloy
Abstract
Provided is a method of making an ODS molybdenum-rhenium alloy which includes the steps of: (a) forming a slurry containing molybdenum oxide and a metal salt dispersed in an aqueous medium, the metal salt being selected from nitrates or acetates of lanthanum, cerium or thorium; (b) heating the slurry in the presence of hydrogen to form a molybdenum powder comprising molybdenum and an oxide of the metal salt; (c) mixing rhenium powder with the molybdenum powder to form a molybdenum-rhenium powder; (d) pressing the molybdenum-rhenium powder to form a molybdenum-rhenium compact; (e) sintering the molybdenum-rhenium compact in hydrogen or under a vacuum to form a molybdenum-rhenium ingot; and (f) compacting the molybdenum-rhenium ingot to reduce the cross-sectional area of the molybdenum-rhenium ingot and form a molybdenum-rhenium alloy containing said metal oxide. The present invention also provides an ODS molybdenum-rhenium alloy made by the method. A preferred Mo--Re-ODS alloy contains 7-14 weight % rhenium and 2-4 volume % lanthanum oxide.
- Inventors:
-
- Cleveland, OH
- (Pittsburgh, PA)
- Issue Date:
- Research Org.:
- Westinghouse Electric Corp., Pittsburgh, PA (United States)
- OSTI Identifier:
- 873153
- Patent Number(s):
- 6102979
- Assignee:
- United States of America as represented by United States (Washington, DC)
- Patent Classifications (CPCs):
-
B - PERFORMING OPERATIONS B22 - CASTING B22F - WORKING METALLIC POWDER
C - CHEMISTRY C22 - METALLURGY C22C - ALLOYS
- DOE Contract Number:
- AC11-93PN38195
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- oxide; strengthened; molybdenum-rhenium; alloy; provided; method; steps; forming; slurry; containing; molybdenum; metal; salt; dispersed; aqueous; medium; selected; nitrates; acetates; lanthanum; cerium; thorium; heating; presence; hydrogen; form; powder; comprising; mixing; rhenium; pressing; compact; sintering; vacuum; ingot; compacting; reduce; cross-sectional; provides; preferred; mo-re-ods; contains; 7-14; weight; 2-4; volume; powder comprising; alloy containing; aqueous medium; metal oxide; metal salt; slurry containing; molybdenum oxide; molybdenum-rhenium alloy; molybdenum powder; alloy contains; lanthanum oxide; salt dispersed; comprising molybdenum; /75/
Citation Formats
Bianco, Robert, and Buckman, Jr., R. William. Oxide strengthened molybdenum-rhenium alloy. United States: N. p., 2000.
Web.
Bianco, Robert, & Buckman, Jr., R. William. Oxide strengthened molybdenum-rhenium alloy. United States.
Bianco, Robert, and Buckman, Jr., R. William. Sat .
"Oxide strengthened molybdenum-rhenium alloy". United States. https://www.osti.gov/servlets/purl/873153.
@article{osti_873153,
title = {Oxide strengthened molybdenum-rhenium alloy},
author = {Bianco, Robert and Buckman, Jr., R. William},
abstractNote = {Provided is a method of making an ODS molybdenum-rhenium alloy which includes the steps of: (a) forming a slurry containing molybdenum oxide and a metal salt dispersed in an aqueous medium, the metal salt being selected from nitrates or acetates of lanthanum, cerium or thorium; (b) heating the slurry in the presence of hydrogen to form a molybdenum powder comprising molybdenum and an oxide of the metal salt; (c) mixing rhenium powder with the molybdenum powder to form a molybdenum-rhenium powder; (d) pressing the molybdenum-rhenium powder to form a molybdenum-rhenium compact; (e) sintering the molybdenum-rhenium compact in hydrogen or under a vacuum to form a molybdenum-rhenium ingot; and (f) compacting the molybdenum-rhenium ingot to reduce the cross-sectional area of the molybdenum-rhenium ingot and form a molybdenum-rhenium alloy containing said metal oxide. The present invention also provides an ODS molybdenum-rhenium alloy made by the method. A preferred Mo--Re-ODS alloy contains 7-14 weight % rhenium and 2-4 volume % lanthanum oxide.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Sat Jan 01 00:00:00 EST 2000},
month = {Sat Jan 01 00:00:00 EST 2000}
}