Published August 1984
| Version v1
Journal article
Creep rupture properties of superalloys developed for nuclear steelmaking
- 1. National Research Institute for Metals Tsukuba Laboratories, Sakuramura, Ibaraki, 305
Description
Creep rupture tests on six candidate alloys for intermediate heat exchangers of high-temperature gascooled reactors were carried out at 1173 to 1323 K in helium with small amounts of H2, CH4, CO, and CO2, and at 1173 K in H2 + 15% CO + 5% CO2. The creep rupture strengths of each alloy were scarcely different at 1173 K in both environments. At higher temperatures in helium environments, the degradation of the creep rupture strengths appeared in carbidestrengthened alloys because of decarburization. The alloy, which mainly uses α-W as a strengthener, showed stable creep rupture strength up to 1323 K in spite of severe decarburization
Additional details
Publishing Information
- Journal Title
- Nucl. Technol.
- Journal Volume
- 66
- Journal Issue
- 2
- Series
- Nucl. Technol.
- Journal Page Range
- 260-272
- ISSN
- 0029-5450
INIS
- Country of Publication
- United States
- Country of Input or Organization
- United States
- INIS RN
- 16044929
- Subject category
- S36: MATERIALS SCIENCE; S21: SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS;
- Descriptors DEI
- ALLOYS; CARBON DIOXIDE; CARBON MONOXIDE; CREEP; DECARBURIZATION; DESTRUCTIVE TESTING; FRACTURE PROPERTIES; HTGR TYPE REACTORS; HYDROGEN; METHANE; REACTOR MATERIALS; RUPTURES; THERMAL DEGRADATION; VERY HIGH TEMPERATURE
- Descriptors DEC
- ALKANES; CARBON COMPOUNDS; CARBON OXIDES; CHALCOGENIDES; CHEMICAL REACTIONS; ELEMENTS; FAILURES; GAS COOLED REACTORS; GRAPHITE MODERATED REACTORS; HYDROCARBONS; MATERIALS; MATERIALS TESTING; MECHANICAL PROPERTIES; NONMETALS; ORGANIC COMPOUNDS; OXIDES; OXYGEN COMPOUNDS; REACTORS; TESTING