Corrosion and Electrochemical Properties of Laser-Shock-Peening-Treated Stainless Steel AISI 304L in VVER Primary Water Environment
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388998%3A_____%2F22%3A00565486" target="_blank" >RIV/61388998:_____/22:00565486 - isvavai.cz</a>
Alternative codes found
RIV/68378271:_____/22:00565486 RIV/68378297:_____/22:00565486 RIV/60461373:22320/22:43924529
Result on the web
<a href="https://mdpi-res.com/d_attachment/metals/metals-12-01702/article_deploy/metals-12-01702.pdf?version=1665563594" target="_blank" >https://mdpi-res.com/d_attachment/metals/metals-12-01702/article_deploy/metals-12-01702.pdf?version=1665563594</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.3390/met12101702" target="_blank" >10.3390/met12101702</a>
Alternative languages
Result language
angličtina
Original language name
Corrosion and Electrochemical Properties of Laser-Shock-Peening-Treated Stainless Steel AISI 304L in VVER Primary Water Environment
Original language description
Laser Shock Peening (LSP) is a surface treatment technique for metallic materials. It induces plastic deformation at the surface of up to around 1 mm in depth. This process introduces residual stresses that lead to strain hardening, and potentially improvements in fatigue, stress corrosion cracking (SCC) and general corrosion behaviour in many, but not all, corrosive media. In this paper, two specimens made of AISI 304L stainless steel, one LSP-treated and one un-treated, were tested at 280 °C and 8 MPa in VVER (or PWR) primary circuit water chemistry using in situ Electrochemical Impedance Spectroscopy (EIS). This experiment serves to qualify the influence of LSP on the changes in corrosion behaviour in high-temperature, high-density water. The residual stress (RS) measurement of the surface showed a compression RS. Before LSP treatment, RS at the surface was 52.2 MPa in the rolling direction 0°RD and 10.42 MPa in the transverse rolling direction 90°RD. After the treatment, surface RS was −175.27 MPa and −183.51 MPa for Scan and TScan directions, respectively. The effect of compressive RS at the surface was studied and showed an increase in corrosion rate. The analysis of oxide layer by SEM revealed differences between LSP-treated and untreated AISI 304L specimens and their connection to corrosion rates.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
20305 - Nuclear related engineering; (nuclear physics to be 1.3);
Result continuities
Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2022
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Metals
ISSN
2075-4701
e-ISSN
2075-4701
Volume of the periodical
12
Issue of the periodical within the volume
10
Country of publishing house
CH - SWITZERLAND
Number of pages
16
Pages from-to
1702
UT code for WoS article
000874365500001
EID of the result in the Scopus database
2-s2.0-85140872984