Skip to Main Content
Skip Nav Destination
ASTM Selected Technical Papers
Radiation-Induced Changes in Microstructure: 13th International Symposium (Part I)
By
FA Garner
FA Garner
1
Westinghouse Hanford Company
,
Richland, WA 99352
;
symposium chairman and coeditor
.
Search for other works by this author on:
NH Packan
NH Packan
2
Oak Ridge National Laboratory
,
Oak Ridge, TN 37831
;
symposium vice-chairman and coeditor
.
Search for other works by this author on:
AS Kumar
AS Kumar
3
University of Missouri-Rolla
,
Rolla, MO 65401
;
symposium vice-chairman and coeditor
.
Search for other works by this author on:
ISBN-10:
0-8031-0962-8
ISBN:
978-0-8031-0962-9
No. of Pages:
927
Publisher:
ASTM International
Publication date:
1987

Void nucleation in irradiated austenitic stainless steels generally requires the presence of either residual or transmutant gases. Classical nucleation rates are much too low to account for the number of voids observed at temperatures greater than about 450°C. An alternate path is generally believed to be responsible for void formation; namely, the growth of gas-stabilized bubbles until they reach a critical size beyond which further gas accumulation is not required to promote growth. Two limiting paths can be envisioned for void nucleation on a population of sub-critical helium/vacancy clusters; one is limited to growth by helium accumulation alone and the other to growth by stochastic fluctuations in the vacancy accumulation. As bubbles approach the critical size, stochastic processes could begin to contribute to the void nucleation rate. A comparison is made of nucleation rates along these two limiting paths as a function of the gas content of the clusters. The calculations indicate that the gas accumulation path is generally dominant, particularly at higher temperatures and for lower gas contents. The fraction of the critical size required for the vacancy path to contribute to the total nucleation rate increases with temperature. The results confirm the important role of transmutant helium in promoting void swelling.

1.
Cawthorne
,
C.
and
Fulton
,
E. J.
,
Nature
 0028-0836, Vol.
216
,
1967
, pp. 575-576.
2.
Urban
,
K.
,
Wilkens
,
M.
, and
Seeger
,
A.
,
Radiation Induced Voids in Metals, Proceedings of the International Conference
, CONF-710601,
U.S. Atomic Energy Commission
,
Washington, DC
,
1971
, pp. 550-562.
3.
Sindelar
,
R. L.
,
Dodd
,
R. A.
, and
Kulcinski
,
G. L.
,
Effects of Radiation on Materials, Twelfth International Symposium
, STP 870,
Garner
F. A.
and
Perrin
J. S.
, Eds.,
American Society for Testing and Materials
,
Philadelphia
,
1985
, pp. 330-343.
4.
Farrell
,
K.
and
Packan
,
N. H.
,
Journal of Nuclear Materials
, Vols.
85
and 86,
1979
, pp. 683-687.
5.
Harkness
,
S. D.
and
Li
,
C.-Y.
,
Metallurgical Transactions
, Vol.
2
,
1971
, pp. 1457-1470.
6.
Katz
,
J. L.
and
Wiedersich
,
H.
,
Journal of Chemistry and Physics
, Vol.
55
,
1971
, pp. 1414-1425.
7.
Russell
,
K. C.
,
Acta Metallurgica
, Vol.
19
,
1971
, pp. 753-758.
8.
Wiedersich
,
H.
,
The Physics of Irradiation Produced Voids
, Consultants Symposium,
Nelson
R. S.
, Ed., AERE-R7934,
AERE Harwell
,
1975
, pp. 147-157.
9.
Russell
,
K. C.
,
The Physics of Irradiation Produced Voids
, Consultants Symposium,
Nelson
R. S.
, Ed., AERE-R7934,
AERE Harwell
,
1975
, pp. 158-179.
10.
Russell
,
K. C.
,
Acta Metallurgica
, Vol.
26
,
1978
, pp. 1615-1630.
11.
Seyyedi
,
S. A.
,
Hadji-Mirzai
,
M.
, and
Russell
,
K. C.
,
Irradiation Behavior of Metallic Materials for Fast Reactor Core Components, Proceedings of the International Conference
,
Corsica
,
1979
, pp. 101-106.
12.
Parker
,
C. A.
and
Russell
,
K. C.
,
Effects of Irradiation on Materials: Eleventh Conference
, STP 782,
Brager
H. R.
and
Perrin
J. S.
, Eds.,
American Society for Testing and Materials
,
Philadelphia
,
1982
, pp. 1042-1053.
13.
Parker
,
C. A.
and
Russell
,
K. C.
,
Journal of Nuclear Materials
, Vol.
119
,
1983
, pp. 82-94.
14.
Wolfer
,
W. G.
,
Mansur
,
L. K.
, and
Sprague
,
J. A.
,
Radiation Effects in Breeder Reactor Structural Materials, Proceedings of the International Conference
,
TMS AIME
,
New York
,
1977
, pp. 841-864.
15.
Wehner
,
M. F.
and
Wolfer
,
W. G.
,
Philosophy Magazine
, Vol.
A52
,
1985
, pp. 189-205.
16.
Si-Ahmed
,
A.
and
Wolfer
,
W. G.
,
Effects of Irradiation on Materials: Eleventh International Symposium
, STP 782,
Brager
H. R.
and
Perrin
J. S.
, Eds.,
American Society for Testing and Materials
,
Philadelphia
,
1982
, pp. 1008-1022.
17.
Wolfer
,
W. G.
and
Si-Ahmed
,
A.
,
Philosophy Magazine
, Vol.
A46
,
1982
, pp. 723-736.
18.
Odette
,
G. R.
and
Langley
,
S. C.
,
Radiation Effects and Tritium Technology for Fusion Reactors
, CONF-750989, Vol.
I
,
1975
, pp. 345-416.
19.
Stoller
,
R. E.
and
Odette
,
G. R.
,
Journal of Nuclear Materials
, Vols.
103
and 104,
1981
, pp. 1361-1366.
20.
Stoller
,
R. E.
and
Odette
,
G. R.
,
Effects of Irradiation on Materials: Eleventh International Symposium
, STP 782,
Brager
H. R.
and
Perrin
J. S.
, Eds.,
American Society for Testing and Materials
,
Philadelphia
,
1982
, pp. 275-294.
21.
Mansur
,
L. K.
and
Coghlan
,
W. A.
,
Journal of Nuclear Materials
, Vol.
119
,
1983
, pp. 1-25.
22.
Lee
,
E. H.
and
Mansur
,
L. K.
,
Philosophy Magazine
, Vol.
A52
,
1985
, pp. 493-508.
23.
Horton
,
L. L.
and
Mansur
,
L. K.
,
Effects of Radiation on Materials, Twelfth International Symposium
, STP 870,
Garner
F. A.
and
Perrin
J. S.
, Eds.,
American Society for Testing and Materials
,
Philadelphia
,
1985
, pp. 344-357.
24.
Discussion
,
Effects of Radiation on Materials, Twelfth International Symposium
, STP 870,
Garner
F. A.
and
Perrin
J. S.
, Eds.,
American Society for Testing and Materials
,
Philadelphia
,
1985
, pp. 357-362.
25.
Stoller
,
R. E.
and
Odette
,
G. R.
,
Journal of Nuclear Materials
, Vol.
131
,
1985
, pp. 118-125.
26.
Clement
,
C. F.
and
Wood
,
M. H.
,
Journal of Nuclear Materials
, Vol.
89
,
1980
, pp. 1-8.
27.
Mansur
,
L. K.
and
Wolfer
,
W. G.
, “
A Study of the Effect of Void Coatings on the Radiation-Induced Swelling
,” ORNL/TM-5670,
Oak Ridge National Laboratory
,
Oak Ridge, TN
,
1977
.
28.
Spitznagel
,
J. A.
,
Wood
,
S.
,
Doyle
,
N. J.
,
Choyke
,
W. J.
,
McGruer
,
J. N.
,
Townsend
,
J. R.
, and
Irwin
,
R. B.
,
Journal of Nuclear Materials
, Vols.
103
and 104,
1981
, pp. 1463-1468.
29.
Yoo
,
M. H.
and
Mansur
,
L. K.
,
Journal of Nuclear Materials
, Vols.
85
and 86,
1979
, pp. 571-575.
30.
Dimitrov
,
O.
and
Dimitrov
,
C.
,
Journal of Nuclear Materials
, Vol.
105
,
1982
, pp. 39-47.
31.
Young
,
F. W.
,
Journal of Nuclear Materials
, Vols.
69
and 70,
1978
, pp. 310-330.
32.
Smedskjaer
,
L. C.
,
Legini
,
D. G.
,
Jason
,
M. K.
, and
Siegel
,
R. W.
,
Journal of Physics F: Metal Physics
, Vol.
11
,
1981
, pp. 2221-2230.
33.
Murr
,
L. E.
,
Wang
,
G. I.
, and
Horylev
,
R. J.
,
Acta Metallurgica
, Vol.
21
,
1973
, pp. 595-604.
34.
Seitzman
,
L. E.
,
Wang
,
L. M.
,
Kulcinski
,
G. L.
, and
Dodd
,
R. A.
,
Journal of Nuclear Materials
, Vols.
141–143
,
1986
, pp. 738-742.
35.
Zinkle
,
S. J.
,
Wolfer
,
W. G.
,
Kulcinski
,
G. L.
, and
Seitzman
,
L. E.
, “
Stability of Vacancy Clusters in Metals: Effect of Oxygen and Helium on Void Formation in Metals
,” UWFDM-693,
University of Wisconsin
,
Madison, WI
,
1986
, submitted to Philosophical Magazine.
36.
Garner
,
F. A.
,
Optimizing Materials for Nuclear Applications
,
Symposium Proceedings
,
TMS AIME
,
New York
,
1985
, pp. 111-139.
37.
Mansur
,
L. K.
and
Coghlan
,
W. A.
,
Effects of Radiation on Materials, Twelfth International Symposium
, STP 870,
Garner
F. A.
and
Perrin
J. S.
, Eds.,
Philadelphia
,
1985
, pp. 481-492.
38.
Maziasz
,
P. J.
,
Journal of Nuclear Materials
, Vol.
122
,
1984
, pp. 236-241.
39.
Farrell
,
K.
,
Radiation Effects
, Vol.
53
,
1980
, pp. 175-184.
This content is only available via PDF.
You do not currently have access to this chapter.
Close Modal

or Create an Account

Close Modal
Close Modal