Abstract
Thermally aged nickel based Alloy 600 was investigated to evaluate the effects of long-term thermal aging and triaxial stress on primary water stress corrosion crack initiation behavior. Long-term thermal aging was simulated by heat treatment at 400 °C, a temperature that does not cause excessive formation of second phases that cannot form in nuclear power plant service conditions. Triaxial stress was applied by a round notch in the gauge length of some test specimen; other specimens were smooth. Slow strain rate tests (SSRT) monitored by the direct current potential drop method were conducted to evaluate stress corrosion crack initiation susceptibility of the thermally aged specimens in the primary water environment. For smooth specimens (which experience uniaxial stress), the susceptibility of those thermally aged for the equivalent of 10-years was the highest, while the susceptibility of the as-received specimens was the lowest. However, for the notched specimens (which experience triaxial stress), the specimens thermally aged for the equivalent of 20-years showed the highest susceptibility, while the as-received specimens showed the lowest.
| Original language | English |
|---|---|
| Title of host publication | Minerals, Metals and Materials Series |
| Publisher | Springer International Publishing |
| Pages | 281-292 |
| Number of pages | 12 |
| ISBN (Print) | 9783030046385, 9783030046392, 9783319515403, 9783319651354, 9783319728520, 9783319950211 |
| DOIs | |
| Publication status | Published - 2019 Jan 1 |
| Event | 18th International Conference on Environmental Degradation of Materials in Nuclear Power Systems – Water Reactors 2019 - Boston, United States Duration: 2019 Aug 18 → 2019 Aug 22 |
Publication series
| Name | Minerals, Metals and Materials Series |
|---|---|
| ISSN (Print) | 2367-1181 |
| ISSN (Electronic) | 2367-1696 |
Conference
| Conference | 18th International Conference on Environmental Degradation of Materials in Nuclear Power Systems – Water Reactors 2019 |
|---|---|
| Country | United States |
| City | Boston |
| Period | 19/8/18 → 19/8/22 |
Fingerprint
Keywords
- Nickel based alloy
- Primary water stress corrosion cracking
- Thermal aging
- Triaxial stress
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Energy Engineering and Power Technology
- Mechanics of Materials
- Metals and Alloys
- Materials Chemistry
Cite this
Pwscc initiation of alloy 600 : effect of long-term thermal aging and triaxial stress. / Yoo, Seung Chang; Choi, Kyoung Joon; Kim, Seunghyun; Kim, Ji Soo; Choi, Byoung-Ho; Kim, Yun-Jae; Kim, Jong Sung; Kim, Ji Hyun.
Minerals, Metals and Materials Series. Springer International Publishing, 2019. p. 281-292 (Minerals, Metals and Materials Series).Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
}
TY - GEN
T1 - Pwscc initiation of alloy 600
T2 - effect of long-term thermal aging and triaxial stress
AU - Yoo, Seung Chang
AU - Choi, Kyoung Joon
AU - Kim, Seunghyun
AU - Kim, Ji Soo
AU - Choi, Byoung-Ho
AU - Kim, Yun-Jae
AU - Kim, Jong Sung
AU - Kim, Ji Hyun
PY - 2019/1/1
Y1 - 2019/1/1
N2 - Thermally aged nickel based Alloy 600 was investigated to evaluate the effects of long-term thermal aging and triaxial stress on primary water stress corrosion crack initiation behavior. Long-term thermal aging was simulated by heat treatment at 400 °C, a temperature that does not cause excessive formation of second phases that cannot form in nuclear power plant service conditions. Triaxial stress was applied by a round notch in the gauge length of some test specimen; other specimens were smooth. Slow strain rate tests (SSRT) monitored by the direct current potential drop method were conducted to evaluate stress corrosion crack initiation susceptibility of the thermally aged specimens in the primary water environment. For smooth specimens (which experience uniaxial stress), the susceptibility of those thermally aged for the equivalent of 10-years was the highest, while the susceptibility of the as-received specimens was the lowest. However, for the notched specimens (which experience triaxial stress), the specimens thermally aged for the equivalent of 20-years showed the highest susceptibility, while the as-received specimens showed the lowest.
AB - Thermally aged nickel based Alloy 600 was investigated to evaluate the effects of long-term thermal aging and triaxial stress on primary water stress corrosion crack initiation behavior. Long-term thermal aging was simulated by heat treatment at 400 °C, a temperature that does not cause excessive formation of second phases that cannot form in nuclear power plant service conditions. Triaxial stress was applied by a round notch in the gauge length of some test specimen; other specimens were smooth. Slow strain rate tests (SSRT) monitored by the direct current potential drop method were conducted to evaluate stress corrosion crack initiation susceptibility of the thermally aged specimens in the primary water environment. For smooth specimens (which experience uniaxial stress), the susceptibility of those thermally aged for the equivalent of 10-years was the highest, while the susceptibility of the as-received specimens was the lowest. However, for the notched specimens (which experience triaxial stress), the specimens thermally aged for the equivalent of 20-years showed the highest susceptibility, while the as-received specimens showed the lowest.
KW - Nickel based alloy
KW - Primary water stress corrosion cracking
KW - Thermal aging
KW - Triaxial stress
UR - http://www.scopus.com/inward/record.url?scp=85064062902&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85064062902&partnerID=8YFLogxK
U2 - 10.1007/978-3-030-04639-2_18
DO - 10.1007/978-3-030-04639-2_18
M3 - Conference contribution
SN - 9783030046385
SN - 9783030046392
SN - 9783319515403
SN - 9783319651354
SN - 9783319728520
SN - 9783319950211
T3 - Minerals, Metals and Materials Series
SP - 281
EP - 292
BT - Minerals, Metals and Materials Series
PB - Springer International Publishing
ER -