Corrosion of materials in absorption heating and refrigeration fluids
Abstract
The corrosion of metals and alloys in absorption refrigeration fluids has received little attention except for the behavior of steel and copper alloys in aqueous lithium bromide solutions. This report presents results of short-term corrosion tests on several materials in lithium bromide solutions as well as in other fluids of potential interest in advanced absorption machines. All materials tested had extremely high resistance to organic fluids, but in the aqueous systems some of the materials underwent localized attack. Type 304 stainless steel had acceptable corrosion resistance in most environments, but it underwent stress corrosion cracking in oxygen- or chromate-containing lithium bromide and even in the unstressed condition was subject to intergranular attack in hot concentrated caustic solutions.
- Publication:
-
NASA STI/Recon Technical Report N
- Pub Date:
- June 1985
- Bibcode:
- 1985STIN...8617585G
- Keywords:
-
- Absorption Cooling;
- Corrosion;
- Corrosion Resistance;
- Refrigerants;
- Stainless Steels;
- Amines;
- Ammonia;
- Carbon Steels;
- Chromates;
- Cracks;
- Cryogenic Fluids;
- Mechanical Properties;
- Nickel;
- Sodium Hydroxides;
- Engineering (General)