Improved high temperature creep resistant austenitic alloy
Patent
·
OSTI ID:6409723
An improved austenitic alloy having in wt% 19-21 Cr, 30-35 Ni, 1.5-2.5 Mn, 2-3 Mo, 0.1-0.4 Si, 0.3-0.5 Ti, 0.1-0.3 Nb, 0.1-0.5 V, 0.001-0.005 P, 0.08-0.12 C, 0.01-0.03 N, 0.005-0.01 B and the balance iron that is further improved by annealing for up to 1 hour at 1150-1200/degree/C and then cold deforming 5-15%. The alloy exhibits dramatically improved creep rupture resistance and ductility at 700/degree/C. 2 figs.
- Research Organization:
- Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
- DOE Contract Number:
- AC05-84OR21400
- Assignee:
- US Dept. of Energy
- Patent Number(s):
- PATENTS-US-A7193705
- Application Number:
- ON: DE89009664
- OSTI ID:
- 6409723
- Resource Relation:
- Other Information: Portions of this document are illegible in microfiche products
- Country of Publication:
- United States
- Language:
- English
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36 MATERIALS SCIENCE
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CHROMIUM ALLOYS
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20 FOSSIL-FUELED POWER PLANTS
21 SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS
CHROMIUM ALLOYS
MECHANICAL PROPERTIES
IRON BASE ALLOYS
MANGANESE ALLOYS
MOLYBDENUM ALLOYS
NICKEL ALLOYS
CHEMICAL COMPOSITION
COMPARATIVE EVALUATIONS
CORROSION RESISTANT ALLOYS
CREEP
DUCTILITY
FOSSIL-FUEL POWER PLANTS
HTGR TYPE REACTORS
LMFBR TYPE REACTORS
MATERIALS WORKING
METALLURGICAL EFFECTS
WELDABILITY
YIELD STRENGTH
ALLOYS
BREEDER REACTORS
EPITHERMAL REACTORS
FABRICATION
FAST REACTORS
FBR TYPE REACTORS
GAS COOLED REACTORS
GRAPHITE MODERATED REACTORS
IRON ALLOYS
LIQUID METAL COOLED REACTORS
POWER PLANTS
REACTORS
TENSILE PROPERTIES
THERMAL POWER PLANTS
360103* - Metals & Alloys- Mechanical Properties
360105 - Metals & Alloys- Corrosion & Erosion
200104 - Fossil-Fueled Power Plants- Components
210500 - Power Reactors
Breeding
210300 - Power Reactors
Nonbreeding
Graphite Moderated