{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,24]],"date-time":"2026-09-24T05:48:41Z","timestamp":1790228921843,"version":"4.1.0"},"reference-count":47,"publisher":"MDPI AG","issue":"3","license":[{"start":{"date-parts":[[2023,1,26]],"date-time":"2023-01-26T00:00:00Z","timestamp":1674691200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"Russian Federation Government under research assignment for ISPMS SB RAS","award":["FWRW-2022-0004"],"award-info":[{"award-number":["FWRW-2022-0004"]}]},{"name":"Russian Federation Government under research assignment for ISPMS SB RAS","award":["FWRW-2021-0012"],"award-info":[{"award-number":["FWRW-2021-0012"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Materials"],"abstract":"<jats:p>This paper is devoted to using multi-pass friction stir processing (FSP) for admixing 1.5 to 30 vol.% copper powders into an AA5056 matrix for the in situ fabrication of a composite alloy reinforced by Al-Cu intermetallic compounds (IMC). Macrostructurally inhomogeneous stir zones have been obtained after the first FSP passes, the homogeneity of which was improved with the following FSP passes. As a result of stirring the plasticized AA5056, the initial copper particle agglomerates were compacted into large copper particles, which were then simultaneously saturated by aluminum. Microstructural investigations showed that various phases such as \u03b1-Al(Cu), \u03b1-Cu(Al) solid solutions, Cu3Al and CuAl IMCs, as well as both S and S\u2019-Al2CuMg precipitates have been detected in the AA5056\/Cu stir zone, depending upon the concentration of copper and the number of FSP passes. The number of IMCs increased with the number of FSP passes, enhancing microhardness by 50\u201355%. The effect of multipass FSP on tensile strength, yield stress and strain-to-fracture was analyzed.<\/jats:p>","DOI":"10.3390\/ma16031070","type":"journal-article","created":{"date-parts":[[2023,1,27]],"date-time":"2023-01-27T01:27:58Z","timestamp":1674782878000},"page":"1070","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":19,"title":["Macro- and Microstructure of In Situ Composites Prepared by Friction Stir Processing of AA5056 Admixed with Copper Powders"],"prefix":"10.3390","volume":"16","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-0348-1869","authenticated-orcid":false,"given":"Valery","family":"Rubtsov","sequence":"first","affiliation":[{"name":"Institute of Strength Physics and Materials Science, Siberian Branch of Russian Academy of Sciences, 634055 Tomsk, Russia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Andrey","family":"Chumaevskii","sequence":"additional","affiliation":[{"name":"Institute of Strength Physics and Materials Science, Siberian Branch of Russian Academy of Sciences, 634055 Tomsk, Russia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Anastasija","family":"Gusarova","sequence":"additional","affiliation":[{"name":"Institute of Strength Physics and Materials Science, Siberian Branch of Russian Academy of Sciences, 634055 Tomsk, Russia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-1984-9720","authenticated-orcid":false,"given":"Evgeny","family":"Knyazhev","sequence":"additional","affiliation":[{"name":"Institute of Strength Physics and Materials Science, Siberian Branch of Russian Academy of Sciences, 634055 Tomsk, Russia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-0725-1219","authenticated-orcid":false,"given":"Denis","family":"Gurianov","sequence":"additional","affiliation":[{"name":"Institute of Strength Physics and Materials Science, Siberian Branch of Russian Academy of Sciences, 634055 Tomsk, Russia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Anna","family":"Zykova","sequence":"additional","affiliation":[{"name":"Institute of Strength Physics and Materials Science, Siberian Branch of Russian Academy of Sciences, 634055 Tomsk, Russia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-0388-4011","authenticated-orcid":false,"given":"Tatiana","family":"Kalashnikova","sequence":"additional","affiliation":[{"name":"Institute of Strength Physics and Materials Science, Siberian Branch of Russian Academy of Sciences, 634055 Tomsk, Russia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Andrey","family":"Cheremnov","sequence":"additional","affiliation":[{"name":"Institute of Strength Physics and Materials Science, Siberian Branch of Russian Academy of Sciences, 634055 Tomsk, Russia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-8254-5853","authenticated-orcid":false,"given":"Nikolai","family":"Savchenko","sequence":"additional","affiliation":[{"name":"Institute of Strength Physics and Materials Science, Siberian Branch of Russian Academy of Sciences, 634055 Tomsk, Russia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-4334-7616","authenticated-orcid":false,"given":"Andrey","family":"Vorontsov","sequence":"additional","affiliation":[{"name":"Institute of Strength Physics and Materials Science, Siberian Branch of Russian Academy of Sciences, 634055 Tomsk, Russia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Veronika","family":"Utyaganova","sequence":"additional","affiliation":[{"name":"Institute of Strength Physics and Materials Science, Siberian Branch of Russian Academy of Sciences, 634055 Tomsk, Russia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Evgeny","family":"Kolubaev","sequence":"additional","affiliation":[{"name":"Institute of Strength Physics and Materials Science, Siberian Branch of Russian Academy of Sciences, 634055 Tomsk, Russia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-0702-7639","authenticated-orcid":false,"given":"Sergei","family":"Tarasov","sequence":"additional","affiliation":[{"name":"Institute of Strength Physics and Materials Science, Siberian Branch of Russian Academy of Sciences, 634055 Tomsk, Russia"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2023,1,26]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"642","DOI":"10.1007\/s11661-007-9459-0","article-title":"Friction Stir Processing Technology: A Review","volume":"39","author":"Ma","year":"2008","journal-title":"Metall. 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