Corrosion protection of steel in ammonia/water heat pumps
Abstract
Corrosion of steel surfaces in a heat pump is inhibited by adding a rare earth metal salt to the heat pump's ammonia/water working fluid. In preferred embodiments, the rare earth metal salt includes cerium, and the steel surfaces are cerated to enhance the corrosion-inhibiting effects.
- Inventors:
- Issue Date:
- Research Org.:
- Advanced Mechanical Technology, Inc., Watertown, MA (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1174532
- Patent Number(s):
- 6632294
- Application Number:
- 09/774,540
- Assignee:
- Advanced Mechanical Technology, Inc. (Watertown, MA)
- Patent Classifications (CPCs):
-
C - CHEMISTRY C09 - DYES C09K - MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
C - CHEMISTRY C23 - COATING METALLIC MATERIAL C23F - NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE
- DOE Contract Number:
- FG02-98ER82519
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 36 MATERIALS SCIENCE
Citation Formats
Mansfeld, Florian B., and Sun, Zhaoli. Corrosion protection of steel in ammonia/water heat pumps. United States: N. p., 2003.
Web.
Mansfeld, Florian B., & Sun, Zhaoli. Corrosion protection of steel in ammonia/water heat pumps. United States.
Mansfeld, Florian B., and Sun, Zhaoli. Tue .
"Corrosion protection of steel in ammonia/water heat pumps". United States. https://www.osti.gov/servlets/purl/1174532.
@article{osti_1174532,
title = {Corrosion protection of steel in ammonia/water heat pumps},
author = {Mansfeld, Florian B. and Sun, Zhaoli},
abstractNote = {Corrosion of steel surfaces in a heat pump is inhibited by adding a rare earth metal salt to the heat pump's ammonia/water working fluid. In preferred embodiments, the rare earth metal salt includes cerium, and the steel surfaces are cerated to enhance the corrosion-inhibiting effects.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Oct 14 00:00:00 EDT 2003},
month = {Tue Oct 14 00:00:00 EDT 2003}
}
Works referenced in this record:
Sealing of Anodized Aluminum Alloys with Rare Earth Metal Salt Solutions
journal, August 1998
- Mansfeld, F.; Chen, C.; Breslin, C. B.
- Journal of The Electrochemical Society, Vol. 145, Issue 8
Corrosion inhibition with rare earth metal salts
journal, March 1992
- Hinton, B. R. W.
- Journal of Alloys and Compounds, Vol. 180, Issue 1-2
The electrochemical behaviour of stainless steels following surface modification in ceriumcontaining solutions
journal, June 1997
- Breslin, C. B.; Chen, C.; Mansfeld, F.
- Corrosion Science, Vol. 39, Issue 6