Microstructural Evolution of Phosphorus Modified Austenitic Steels during Irradiation in JOYO

Hideo Watanabe, T. Muroga, N. Yoshida

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

The effects of phosphorus on microstructural evolution in austenitic stainless steels under fast neutron irradiation have been investigated. Three model alloys (Fe-16Cr-17Ni, Fe-16Cr-17Ni-0.024P and Fe-16Cr-17Ni-0.1P) were irradiated to 2 dpa and 11 dpa. The irradiation was performed in JOYO using SMIR-9. The nominal (calculated) irradiation temperatures were 673 (698), 773 and 873 K. Addition of phosphorus resulted in a suppression of void swelling at all temperatures except in 0.024P-alloy irradiated at 698 K to 11 dpa. The behavior of void swelling and phosphide formation by lower dose (2 dpa) irradiation was consistent with our previous studies of electron or high dose (40 dpa) neutron irradiations. In higher dose irradiation (11 dpa), on the other hand, void swelling and phosphide formation at 873 K were drastically suppressed. This may be caused by an unexpected temperature increase due to excess gamma-ray heating. A need for on-line temperature measurement and its active control are clearly demonstrated.

Original languageEnglish
Pages (from-to)1012-1017
Number of pages6
JournalMaterials Transactions, JIM
Volume34
Issue number11
DOIs
Publication statusPublished - Jan 1 1993

Fingerprint

Austenitic steel
Microstructural evolution
Phosphorus
phosphorus
Irradiation
steels
swelling
Dosimetry
Swelling
voids
phosphides
irradiation
Neutron irradiation
neutron irradiation
dosage
austenitic stainless steels
active control
fast neutrons
Austenitic stainless steel
Temperature measurement

All Science Journal Classification (ASJC) codes

  • Engineering(all)

Cite this

Microstructural Evolution of Phosphorus Modified Austenitic Steels during Irradiation in JOYO. / Watanabe, Hideo; Muroga, T.; Yoshida, N.

In: Materials Transactions, JIM, Vol. 34, No. 11, 01.01.1993, p. 1012-1017.

Research output: Contribution to journalArticle

@article{de32535e46094aedb31b2ab10178626c,
title = "Microstructural Evolution of Phosphorus Modified Austenitic Steels during Irradiation in JOYO",
abstract = "The effects of phosphorus on microstructural evolution in austenitic stainless steels under fast neutron irradiation have been investigated. Three model alloys (Fe-16Cr-17Ni, Fe-16Cr-17Ni-0.024P and Fe-16Cr-17Ni-0.1P) were irradiated to 2 dpa and 11 dpa. The irradiation was performed in JOYO using SMIR-9. The nominal (calculated) irradiation temperatures were 673 (698), 773 and 873 K. Addition of phosphorus resulted in a suppression of void swelling at all temperatures except in 0.024P-alloy irradiated at 698 K to 11 dpa. The behavior of void swelling and phosphide formation by lower dose (2 dpa) irradiation was consistent with our previous studies of electron or high dose (40 dpa) neutron irradiations. In higher dose irradiation (11 dpa), on the other hand, void swelling and phosphide formation at 873 K were drastically suppressed. This may be caused by an unexpected temperature increase due to excess gamma-ray heating. A need for on-line temperature measurement and its active control are clearly demonstrated.",
author = "Hideo Watanabe and T. Muroga and N. Yoshida",
year = "1993",
month = "1",
day = "1",
doi = "10.2320/matertrans1989.34.1012",
language = "English",
volume = "34",
pages = "1012--1017",
journal = "Materials Transactions",
issn = "0916-1821",
publisher = "The Japan Institute of Metals and Materials",
number = "11",

}

TY - JOUR

T1 - Microstructural Evolution of Phosphorus Modified Austenitic Steels during Irradiation in JOYO

AU - Watanabe, Hideo

AU - Muroga, T.

AU - Yoshida, N.

PY - 1993/1/1

Y1 - 1993/1/1

N2 - The effects of phosphorus on microstructural evolution in austenitic stainless steels under fast neutron irradiation have been investigated. Three model alloys (Fe-16Cr-17Ni, Fe-16Cr-17Ni-0.024P and Fe-16Cr-17Ni-0.1P) were irradiated to 2 dpa and 11 dpa. The irradiation was performed in JOYO using SMIR-9. The nominal (calculated) irradiation temperatures were 673 (698), 773 and 873 K. Addition of phosphorus resulted in a suppression of void swelling at all temperatures except in 0.024P-alloy irradiated at 698 K to 11 dpa. The behavior of void swelling and phosphide formation by lower dose (2 dpa) irradiation was consistent with our previous studies of electron or high dose (40 dpa) neutron irradiations. In higher dose irradiation (11 dpa), on the other hand, void swelling and phosphide formation at 873 K were drastically suppressed. This may be caused by an unexpected temperature increase due to excess gamma-ray heating. A need for on-line temperature measurement and its active control are clearly demonstrated.

AB - The effects of phosphorus on microstructural evolution in austenitic stainless steels under fast neutron irradiation have been investigated. Three model alloys (Fe-16Cr-17Ni, Fe-16Cr-17Ni-0.024P and Fe-16Cr-17Ni-0.1P) were irradiated to 2 dpa and 11 dpa. The irradiation was performed in JOYO using SMIR-9. The nominal (calculated) irradiation temperatures were 673 (698), 773 and 873 K. Addition of phosphorus resulted in a suppression of void swelling at all temperatures except in 0.024P-alloy irradiated at 698 K to 11 dpa. The behavior of void swelling and phosphide formation by lower dose (2 dpa) irradiation was consistent with our previous studies of electron or high dose (40 dpa) neutron irradiations. In higher dose irradiation (11 dpa), on the other hand, void swelling and phosphide formation at 873 K were drastically suppressed. This may be caused by an unexpected temperature increase due to excess gamma-ray heating. A need for on-line temperature measurement and its active control are clearly demonstrated.

UR - http://www.scopus.com/inward/record.url?scp=0027700674&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0027700674&partnerID=8YFLogxK

U2 - 10.2320/matertrans1989.34.1012

DO - 10.2320/matertrans1989.34.1012

M3 - Article

AN - SCOPUS:0027700674

VL - 34

SP - 1012

EP - 1017

JO - Materials Transactions

JF - Materials Transactions

SN - 0916-1821

IS - 11

ER -