High temperature creep resistant austenitic alloy
Patent
·
OSTI ID:867041
- Oak Ridge, TN
- Lenoir City, TN
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.degree.-1200.degree. C. and then cold deforming 5-15 %. The alloy exhibits dramatically improved creep rupture resistance and ductility at 700.degree. C.
- Research Organization:
- Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
- DOE Contract Number:
- AC05-84OR21400
- Assignee:
- United States of America as represented by United States (Washington, DC)
- Patent Number(s):
- US 4849169
- OSTI ID:
- 867041
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
temperature
creep
resistant
austenitic
alloy
improved
wt
19-21
30-35
5-2
mn
2-3
1-0
3-0
nb
001-0
005
08-0
12
01-0
03
005-0
01
balance
iron
annealing
hour
1150
degree
-1200
cold
deforming
5-15
exhibits
dramatically
rupture
resistance
ductility
700
austenitic alloy
balance iron
alloy exhibits
resistant austenitic
creep resistant
temperature creep
improved creep
/420/148/
creep
resistant
austenitic
alloy
improved
wt
19-21
30-35
5-2
mn
2-3
1-0
3-0
nb
001-0
005
08-0
12
01-0
03
005-0
01
balance
iron
annealing
hour
1150
degree
-1200
cold
deforming
5-15
exhibits
dramatically
rupture
resistance
ductility
700
austenitic alloy
balance iron
alloy exhibits
resistant austenitic
creep resistant
temperature creep
improved creep
/420/148/