Some effects of surface finish and LWR environment on environmentally-assisted crack initiation in Alloy 182

Research output: Contribution to report/book/conference proceedingsIn-proceedings paperpeer-review

Standard

Some effects of surface finish and LWR environment on environmentally-assisted crack initiation in Alloy 182. / Vankeerberghen, Marc; Bosch, Rik-Wouter; Dinu, Alice; Grimm, Michael; Hojna, Anna; Meadows, Jill; Novotny, Radek; Perosanz, Francisco-Javier; Que, Zaiqing; Ritter, Stefan; Scenini, Fabio; Toivonen, Aki; Volpe, Liberato; Zajec, Bojan.

Proceedings of the 20th Iiternational conference on environmental degradation of materials in nuclear power systems-water reactor. AMPP - Association for Materials Protection and Performance, 2022. p. 1-23.

Research output: Contribution to report/book/conference proceedingsIn-proceedings paperpeer-review

Harvard

Vankeerberghen, M, Bosch, R-W, Dinu, A, Grimm, M, Hojna, A, Meadows, J, Novotny, R, Perosanz, F-J, Que, Z, Ritter, S, Scenini, F, Toivonen, A, Volpe, L & Zajec, B 2022, Some effects of surface finish and LWR environment on environmentally-assisted crack initiation in Alloy 182. in Proceedings of the 20th Iiternational conference on environmental degradation of materials in nuclear power systems-water reactor. AMPP - Association for Materials Protection and Performance, pp. 1-23, 2022 - 20th International Conference on Environmental Degradation of Materials in Nuclear Power Systems-Water Reactor , Snowmass, Colorado, United States, 2022-07-17. <https://www.ans.org/store/browse-proceedings/>

APA

Vankeerberghen, M., Bosch, R-W., Dinu, A., Grimm, M., Hojna, A., Meadows, J., Novotny, R., Perosanz, F-J., Que, Z., Ritter, S., Scenini, F., Toivonen, A., Volpe, L., & Zajec, B. (Accepted/In press). Some effects of surface finish and LWR environment on environmentally-assisted crack initiation in Alloy 182. In Proceedings of the 20th Iiternational conference on environmental degradation of materials in nuclear power systems-water reactor (pp. 1-23). AMPP - Association for Materials Protection and Performance. https://www.ans.org/store/browse-proceedings/

Vancouver

Vankeerberghen M, Bosch R-W, Dinu A, Grimm M, Hojna A, Meadows J et al. Some effects of surface finish and LWR environment on environmentally-assisted crack initiation in Alloy 182. In Proceedings of the 20th Iiternational conference on environmental degradation of materials in nuclear power systems-water reactor. AMPP - Association for Materials Protection and Performance. 2022. p. 1-23

Author

Vankeerberghen, Marc ; Bosch, Rik-Wouter ; Dinu, Alice ; Grimm, Michael ; Hojna, Anna ; Meadows, Jill ; Novotny, Radek ; Perosanz, Francisco-Javier ; Que, Zaiqing ; Ritter, Stefan ; Scenini, Fabio ; Toivonen, Aki ; Volpe, Liberato ; Zajec, Bojan. / Some effects of surface finish and LWR environment on environmentally-assisted crack initiation in Alloy 182. Proceedings of the 20th Iiternational conference on environmental degradation of materials in nuclear power systems-water reactor. AMPP - Association for Materials Protection and Performance, 2022. pp. 1-23

Bibtex - Download

@inproceedings{f98952a320d74acc8ec71a6f9a1290bc,
title = "Some effects of surface finish and LWR environment on environmentally-assisted crack initiation in Alloy 182",
abstract = "Under certain conditions, weld alloy 182 has been shown to be prone to environmentally-assisted cracking in light water reactor primary water. Within the European, collaborative project MEACTOS, environmentally-assisted crack initiation was addressed by performing constant elongation rate testing of flat, tapered tensile specimens for four surface finishes (a polished one that serves as a reference, an industrial-milled one, an advanced-machined one and a shot peened one), under both a BWR/NWC (boiling water reactor under normal water chemistry) and a PWR (pressurized water reactor) primary water environment, at various cross-head displacement rates. After testing the critical stress for initiating an environmentally-assisted crack was derived by locating the critical section (the border between areas showing and not showing surface cracking after testing) and calculating the associated local stress. In a first analysis the critical stress was plotted against the nominal strain rate (cross-head displacement rate divided by the length of the tapered gauge section) and an exponential curve was fitted to it; yielding a characteristic critical stress (extrapolation to zero nominal strain rate) and a characteristic nominal strain rate (rendering the nominal strain rate dimensionless under the exponent). In a second analysis an initiation model was fitted to obtain a usage towards EAC initiation of 1 in the experimentally-determined critical cross section. The model is strain rate and stress level dependent. The data and the results of both analyses will be presented and discussed in terms of environmentally-assisted crack initiation.",
keywords = "EAC, Initiation, Alloy 182, LWR, Surface finish",
author = "Marc Vankeerberghen and Rik-Wouter Bosch and Alice Dinu and Michael Grimm and Anna Hojna and Jill Meadows and Radek Novotny and Francisco-Javier Perosanz and Zaiqing Que and Stefan Ritter and Fabio Scenini and Aki Toivonen and Liberato Volpe and Bojan Zajec",
note = "Score=3; 2022 - 20th International Conference on Environmental Degradation of Materials in Nuclear Power Systems-Water Reactor ; Conference date: 17-07-2022 Through 21-07-2022",
year = "2022",
month = jul,
day = "17",
language = "English",
pages = "1--23",
booktitle = "Proceedings of the 20th Iiternational conference on environmental degradation of materials in nuclear power systems-water reactor",
publisher = "AMPP - Association for Materials Protection and Performance",
address = "United States",
url = "https://envdeg.nace.org/",

}

RIS - Download

TY - GEN

T1 - Some effects of surface finish and LWR environment on environmentally-assisted crack initiation in Alloy 182

AU - Vankeerberghen, Marc

AU - Bosch, Rik-Wouter

AU - Dinu, Alice

AU - Grimm, Michael

AU - Hojna, Anna

AU - Meadows, Jill

AU - Novotny, Radek

AU - Perosanz, Francisco-Javier

AU - Que, Zaiqing

AU - Ritter, Stefan

AU - Scenini, Fabio

AU - Toivonen, Aki

AU - Volpe, Liberato

AU - Zajec, Bojan

N1 - Score=3

PY - 2022/7/17

Y1 - 2022/7/17

N2 - Under certain conditions, weld alloy 182 has been shown to be prone to environmentally-assisted cracking in light water reactor primary water. Within the European, collaborative project MEACTOS, environmentally-assisted crack initiation was addressed by performing constant elongation rate testing of flat, tapered tensile specimens for four surface finishes (a polished one that serves as a reference, an industrial-milled one, an advanced-machined one and a shot peened one), under both a BWR/NWC (boiling water reactor under normal water chemistry) and a PWR (pressurized water reactor) primary water environment, at various cross-head displacement rates. After testing the critical stress for initiating an environmentally-assisted crack was derived by locating the critical section (the border between areas showing and not showing surface cracking after testing) and calculating the associated local stress. In a first analysis the critical stress was plotted against the nominal strain rate (cross-head displacement rate divided by the length of the tapered gauge section) and an exponential curve was fitted to it; yielding a characteristic critical stress (extrapolation to zero nominal strain rate) and a characteristic nominal strain rate (rendering the nominal strain rate dimensionless under the exponent). In a second analysis an initiation model was fitted to obtain a usage towards EAC initiation of 1 in the experimentally-determined critical cross section. The model is strain rate and stress level dependent. The data and the results of both analyses will be presented and discussed in terms of environmentally-assisted crack initiation.

AB - Under certain conditions, weld alloy 182 has been shown to be prone to environmentally-assisted cracking in light water reactor primary water. Within the European, collaborative project MEACTOS, environmentally-assisted crack initiation was addressed by performing constant elongation rate testing of flat, tapered tensile specimens for four surface finishes (a polished one that serves as a reference, an industrial-milled one, an advanced-machined one and a shot peened one), under both a BWR/NWC (boiling water reactor under normal water chemistry) and a PWR (pressurized water reactor) primary water environment, at various cross-head displacement rates. After testing the critical stress for initiating an environmentally-assisted crack was derived by locating the critical section (the border between areas showing and not showing surface cracking after testing) and calculating the associated local stress. In a first analysis the critical stress was plotted against the nominal strain rate (cross-head displacement rate divided by the length of the tapered gauge section) and an exponential curve was fitted to it; yielding a characteristic critical stress (extrapolation to zero nominal strain rate) and a characteristic nominal strain rate (rendering the nominal strain rate dimensionless under the exponent). In a second analysis an initiation model was fitted to obtain a usage towards EAC initiation of 1 in the experimentally-determined critical cross section. The model is strain rate and stress level dependent. The data and the results of both analyses will be presented and discussed in terms of environmentally-assisted crack initiation.

KW - EAC

KW - Initiation

KW - Alloy 182

KW - LWR

KW - Surface finish

UR - https://ecm.sckcen.be/OTCS/llisapi.dll/open/50804290

M3 - In-proceedings paper

SP - 1

EP - 23

BT - Proceedings of the 20th Iiternational conference on environmental degradation of materials in nuclear power systems-water reactor

PB - AMPP - Association for Materials Protection and Performance

T2 - 2022 - 20th International Conference on Environmental Degradation of Materials in Nuclear Power Systems-Water Reactor

Y2 - 17 July 2022 through 21 July 2022

ER -

ID: 7954976