{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,11]],"date-time":"2025-10-11T01:22:59Z","timestamp":1760145779930,"version":"build-2065373602"},"reference-count":53,"publisher":"MDPI AG","issue":"9","license":[{"start":{"date-parts":[[2024,9,5]],"date-time":"2024-09-05T00:00:00Z","timestamp":1725494400000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"National Science Centre","award":["2021\/43\/D\/ST8\/01946"],"award-info":[{"award-number":["2021\/43\/D\/ST8\/01946"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Symmetry"],"abstract":"<jats:p>In recent years, revolutionary improvements in the properties of certain FCC metals have been achieved by increasing the proportion of twin-related, highly symmetric grain boundaries. Various thermomechanical routes of grain boundary engineering (GBE) processing have been employed to enhance the fraction of low \u03a3CSL grain boundaries, thereby improving the radiation tolerance of many polycrystalline materials. This improvement is due to symmetric twin boundaries acting as effective sinks for defects caused by radiation, thus enhancing the material\u2019s performance. In this study, the LPBF AlSi10Mg alloy was post-processed via the KOBO extrusion method. Subsequently, the samples were subjected to irradiation with Ar+ ions at an ion fluence of 5 \u00d7 1017 cm\u22122. The microstructures of the samples were thoroughly investigated using electron backscatter diffraction (EBSD), transmission electron microscopy (TEM), and high-resolution TEM (HRTEM). The results showed that KOBO processing led to the formation of an ultrafine-grained microstructure with a mean grain size of 0.8 \u00b5m. Moreover, it was revealed that the microstructure of the KOBO-processed sample exhibited an increased fraction of low-\u03a3CSL boundaries. Specifically, the fraction of \u03a311 boundaries increased from approximately 2% to 8%. Post-irradiation microstructural analysis revealed improved radiation tolerance in the KOBO-processed sample, indicating a beneficial influence of the increased grain boundary fraction and low-\u03a3CSL boundary fraction on the irradiation resistance of the AlSi10Mg alloy. This research provides valuable insights for the development of customized microstructures with enhanced radiation tolerance, which has significant implications for the advancement of materials in nuclear and aerospace applications.<\/jats:p>","DOI":"10.3390\/sym16091158","type":"journal-article","created":{"date-parts":[[2024,9,5]],"date-time":"2024-09-05T04:15:11Z","timestamp":1725509711000},"page":"1158","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":3,"title":["Ar+ Ion Irradiation Response of LPBF AlSi10Mg Alloy in As-Built and KOBO-Processed Conditions"],"prefix":"10.3390","volume":"16","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-4108-0903","authenticated-orcid":false,"given":"Przemys\u0142aw","family":"Snopi\u0144ski","sequence":"first","affiliation":[{"name":"Department of Engineering Materials and Biomaterials, Silesian University of Technology, 05-400 Otwock, Poland"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-1416-7461","authenticated-orcid":false,"given":"Marek","family":"Barlak","sequence":"additional","affiliation":[{"name":"Plasma\/Ion Beam Technology Division, Material Physics Department, National Centre for Nuclear Research \u015awierk, 7 So\u0142tana St., 05-400 Otwock, Poland"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-0146-4558","authenticated-orcid":false,"given":"Katarzyna","family":"Nowakowska-Langier","sequence":"additional","affiliation":[{"name":"Plasma\/Ion Beam Technology Division, Material Physics Department, National Centre for Nuclear Research \u015awierk, 7 So\u0142tana St., 05-400 Otwock, Poland"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2024,9,5]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"510","DOI":"10.1016\/j.jnucmat.2019.05.058","article-title":"Ferritic-martensitic steels for fission and fusion applications","volume":"523","author":"Cabet","year":"2019","journal-title":"J. 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