Effect of surface machining on the environmentally-assisted cracking of Alloy 182 and 316L stainless steel in light water reactor environments – results of the collaborative project MEACTOS

M.  Zimina; S. Ritter; B. Zajec; M.  Vankeerberghen; L. Volpe; A. Hojná; R. W. Bosch; F. Scenini; M. G. Burke; Z.  Que; A.   Sáez-Maderuelo; P.  J. Meadows; M. Grimm; M. Herbst; A. Legat; A. Maurotto; R. Novotny; H. P.   Seifert

doi:10.1515/corrrev-2022-0121

Effect of surface machining on the environmentally-assisted cracking of Alloy 182 and 316L stainless steel in light water reactor environments – results of the collaborative project MEACTOS

M. Zimina, S. Ritter, B. Zajec, M. Vankeerberghen, L. Volpe, A. Hojná, R. W. Bosch, F. Scenini, M. G. Burke, Z. Que, A. Sáez-Maderuelo, P. J. Meadows, M. Grimm, M. Herbst, A. Legat, A. Maurotto, R. Novotny, H. P. Seifert

Materials Engineering

Research output: Contribution to journal › Article › peer-review

Abstract

The main objective of the EU-funded project MEACTOS (Mitigating Environmentally-Assisted Cracking Through Optimisation of Surface Condition) was to gain knowledge on the ability of different surface machining procedures to mitigate environmentally-assisted cracking (EAC) in typical light water reactor structural materials and environments.
Surfaces of cold-worked (CW) type 316L austenitic stainless steel and nickel-based weld metal Alloy 182 flat tapered tensile specimens were machined using different processes. EAC initiation susceptibility of these specimens was screened by constant extension rate tensile (CERT) tests under simulated boiling water reactor (BWR) and pressurized water reactor (PWR) conditions and assessed using constant load experiments.
More than a hundred tests were performed covering about 10 years of autoclave testing time. Only minor or no measurable improvements in EAC initiation susceptibility as a function of surface treatments (grinding or advanced machining) compared to the standard industrial face milling were demonstrated. In most cases, the stress thresholds for EAC initiation determined in constant load tests confirmed the trend obtained from CERT tests. This paper summarises the most important results and conclusions concerning the EAC initiation behaviour for the CW 316L and Alloy 182 under reducing PWR and oxidizing BWR conditions.

Original language	English
Pages (from-to)	233–266
Number of pages	33
Journal	Corrosion Reviews
Early online date	15 May 2023
DOIs	https://doi.org/10.1515/corrrev-2022-0121
Publication status	E-pub ahead of print - 15 May 2023

Keywords

Stress corrosion cracking
Initiation
Light water reactor
Weld metal
Stainless steel

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MPC: Materials Performance Centre
Burke, G., Engelberg, D., Preuss, M., Frankel, P., Jimenez-Melero, E., Pickering, E., Scenini, F., Stevens, N., Race, C., Connolly, B., Abdallah, M., Armson, S., Attar, H., Barron, P., Bird, J., Brown, A., Bruce, K., Buxton, O., Cassineri, S., Cattivelli, A., Chen, W., Collins, J., Debenham, L., Eaton-Mckay, J., Eguchi, K., Foster, D., Fox, C., Garrett, A., Gredis, A., Grime, T., Hou, J., Howe, B., Hughes, J., Hunt, C., Islam, U., Jalil, R., Jones, C., Kablan, A., Kapousidou, M., Koc, O., Kroll, R., Lang, R., Lennard, J., Liubercev, S., Mahmood, S., Maric, M., Martin, C., Mazzei, G., Rigby-Bell, M., Rogers, M., Sanchez, C., Shah, Z., Stavroulakis, E., Stuglik, P., Suleman, T., Supornpaibul, N., Thornley, S., Volpe, L., Wang, H., Wilson, M., Wilson, A., Woodward, T., Wylie, A., Xu, X. D., Yankova, M., Yildirim, E., Zhou, Y., Zhu, S., Barzdajn, B., Carruthers, A., Cassineri, S., Chang, L., Obasi, G., Palko, S., Reccagni, P., Tang, R., Thomas, R., Unnikrishnan, R., Zhang, Z., Zhou, Y. & Aspinall, A.
1/01/02 → …
Project: Research

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Zimina, M., Ritter, S., Zajec, B., Vankeerberghen, M., Volpe, L., Hojná, A., Bosch, R. W., Scenini, F., Burke, M. G., Que, Z., Sáez-Maderuelo, A., Meadows, P. J., Grimm, M., Herbst, M., Legat, A., Maurotto, A., Novotny, R., & Seifert, H. P. (2023). Effect of surface machining on the environmentally-assisted cracking of Alloy 182 and 316L stainless steel in light water reactor environments – results of the collaborative project MEACTOS. Corrosion Reviews, 233–266. Advance online publication. https://doi.org/10.1515/corrrev-2022-0121

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title = "Effect of surface machining on the environmentally-assisted cracking of Alloy 182 and 316L stainless steel in light water reactor environments – results of the collaborative project MEACTOS",

abstract = "The main objective of the EU-funded project MEACTOS (Mitigating Environmentally-Assisted Cracking Through Optimisation of Surface Condition) was to gain knowledge on the ability of different surface machining procedures to mitigate environmentally-assisted cracking (EAC) in typical light water reactor structural materials and environments.Surfaces of cold-worked (CW) type 316L austenitic stainless steel and nickel-based weld metal Alloy 182 flat tapered tensile specimens were machined using different processes. EAC initiation susceptibility of these specimens was screened by constant extension rate tensile (CERT) tests under simulated boiling water reactor (BWR) and pressurized water reactor (PWR) conditions and assessed using constant load experiments. More than a hundred tests were performed covering about 10 years of autoclave testing time. Only minor or no measurable improvements in EAC initiation susceptibility as a function of surface treatments (grinding or advanced machining) compared to the standard industrial face milling were demonstrated. In most cases, the stress thresholds for EAC initiation determined in constant load tests confirmed the trend obtained from CERT tests. This paper summarises the most important results and conclusions concerning the EAC initiation behaviour for the CW 316L and Alloy 182 under reducing PWR and oxidizing BWR conditions.",

keywords = "Stress corrosion cracking, Initiation, Light water reactor, Weld metal, Stainless steel",

author = "M. Zimina and S. Ritter and B. Zajec and M. Vankeerberghen and L. Volpe and A. Hojn{\'a} and Bosch, {R. W.} and F. Scenini and Burke, {M. G.} and Z. Que and A. S{\'a}ez-Maderuelo and Meadows, {P. J.} and M. Grimm and M. Herbst and A. Legat and A. Maurotto and R. Novotny and Seifert, {H. P.}",

year = "2023",

month = may,

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doi = "10.1515/corrrev-2022-0121",

language = "English",

pages = "233–266",

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Zimina, M, Ritter, S, Zajec, B, Vankeerberghen, M, Volpe, L, Hojná, A, Bosch, RW, Scenini, F , Burke, MG, Que, Z, Sáez-Maderuelo, A, Meadows, PJ, Grimm, M, Herbst, M, Legat, A, Maurotto, A, Novotny, R & Seifert, HP 2023, 'Effect of surface machining on the environmentally-assisted cracking of Alloy 182 and 316L stainless steel in light water reactor environments – results of the collaborative project MEACTOS', Corrosion Reviews, pp. 233–266. https://doi.org/10.1515/corrrev-2022-0121

TY - JOUR

T1 - Effect of surface machining on the environmentally-assisted cracking of Alloy 182 and 316L stainless steel in light water reactor environments – results of the collaborative project MEACTOS

AU - Zimina, M.

AU - Ritter, S.

AU - Zajec, B.

AU - Vankeerberghen, M.

AU - Volpe, L.

AU - Hojná, A.

AU - Bosch, R. W.

AU - Scenini, F.

AU - Burke, M. G.

AU - Que, Z.

AU - Sáez-Maderuelo, A.

AU - Meadows, P. J.

AU - Grimm, M.

AU - Herbst, M.

AU - Legat, A.

AU - Maurotto, A.

AU - Novotny, R.

AU - Seifert, H. P.

PY - 2023/5/15

Y1 - 2023/5/15

N2 - The main objective of the EU-funded project MEACTOS (Mitigating Environmentally-Assisted Cracking Through Optimisation of Surface Condition) was to gain knowledge on the ability of different surface machining procedures to mitigate environmentally-assisted cracking (EAC) in typical light water reactor structural materials and environments.Surfaces of cold-worked (CW) type 316L austenitic stainless steel and nickel-based weld metal Alloy 182 flat tapered tensile specimens were machined using different processes. EAC initiation susceptibility of these specimens was screened by constant extension rate tensile (CERT) tests under simulated boiling water reactor (BWR) and pressurized water reactor (PWR) conditions and assessed using constant load experiments. More than a hundred tests were performed covering about 10 years of autoclave testing time. Only minor or no measurable improvements in EAC initiation susceptibility as a function of surface treatments (grinding or advanced machining) compared to the standard industrial face milling were demonstrated. In most cases, the stress thresholds for EAC initiation determined in constant load tests confirmed the trend obtained from CERT tests. This paper summarises the most important results and conclusions concerning the EAC initiation behaviour for the CW 316L and Alloy 182 under reducing PWR and oxidizing BWR conditions.

AB - The main objective of the EU-funded project MEACTOS (Mitigating Environmentally-Assisted Cracking Through Optimisation of Surface Condition) was to gain knowledge on the ability of different surface machining procedures to mitigate environmentally-assisted cracking (EAC) in typical light water reactor structural materials and environments.Surfaces of cold-worked (CW) type 316L austenitic stainless steel and nickel-based weld metal Alloy 182 flat tapered tensile specimens were machined using different processes. EAC initiation susceptibility of these specimens was screened by constant extension rate tensile (CERT) tests under simulated boiling water reactor (BWR) and pressurized water reactor (PWR) conditions and assessed using constant load experiments. More than a hundred tests were performed covering about 10 years of autoclave testing time. Only minor or no measurable improvements in EAC initiation susceptibility as a function of surface treatments (grinding or advanced machining) compared to the standard industrial face milling were demonstrated. In most cases, the stress thresholds for EAC initiation determined in constant load tests confirmed the trend obtained from CERT tests. This paper summarises the most important results and conclusions concerning the EAC initiation behaviour for the CW 316L and Alloy 182 under reducing PWR and oxidizing BWR conditions.

KW - Stress corrosion cracking

KW - Initiation

KW - Light water reactor

KW - Weld metal

KW - Stainless steel

U2 - 10.1515/corrrev-2022-0121

DO - 10.1515/corrrev-2022-0121

M3 - Article

SN - 0334-6005

SP - 233

EP - 266

JO - Corrosion Reviews

JF - Corrosion Reviews

ER -

Effect of surface machining on the environmentally-assisted cracking of Alloy 182 and 316L stainless steel in light water reactor environments – results of the collaborative project MEACTOS

Abstract

Keywords

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