{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,11]],"date-time":"2026-09-11T09:07:31Z","timestamp":1789117651084,"version":"build-2803163510"},"reference-count":33,"publisher":"MDPI AG","issue":"18","license":[{"start":{"date-parts":[[2026,9,11]],"date-time":"2026-09-11T00:00:00Z","timestamp":1789084800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"framework of the state assignment","award":["075-00320-26-00"],"award-info":[{"award-number":["075-00320-26-00"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Materials"],"abstract":"<jats:p>The effect of rotary swaging (RS) at room temperature and subsequent annealing at 350 \u00b0C on the microstructure, mechanical properties, and fatigue strength of Cu\u201335.8%Zn two-phase brass was studied. A structure with grains of \u03b1 and \u03b2\u2032 phases elongated along the deformation direction was formed after RS. It was also shown that subgrains of 200\u2013300 nm in size, shear bands 100\u2013200 nm wide, and deformation twins 10\u201330 nm wide were formed inside the \u03b1-phase grains. RS caused the increase in the yield stress (YS) from 93 \u00b1 4 to 717 \u00b1 6 MPa and the ultimate tensile strength (UTS) from 332 \u00b1 2 to 744 \u00b1 19 MPa with a decrease in ductility (El) from 71.0 \u00b1 2.0 to 10.3 \u00b1 1.7%. The fatigue limit also increased from 240 to 415 MPa after RS. Subsequent annealing at 350 \u00b0C induced recrystallization of the \u03b1-phase with the formation of equiaxed grains 2.2\u20133.6 \u00b5m in size, which resulted in a decrease in UTS to 462\u2013466 MPa and an increase in ductility to 44\u201345%. Extending the annealing time to 4 h did not affect the strength and ductility values of the alloy.<\/jats:p>","DOI":"10.3390\/ma19183870","type":"journal-article","created":{"date-parts":[[2026,9,11]],"date-time":"2026-09-11T08:17:42Z","timestamp":1789114662000},"page":"3870","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Optimization of Mechanical Characteristics of Cu-35.8%Zn Brass by Rotary Swaging and Subsequent Annealing"],"prefix":"10.3390","volume":"19","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-1662-1904","authenticated-orcid":false,"given":"Natalia","family":"Martynenko","sequence":"first","affiliation":[{"name":"A.A. 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Baikov Institute of Metallurgy and Materials Science, Russian Academy of Sciences, 119991 Moscow, Russia"}],"role":[{"vocabulary":"crossref","role":"author"},{"role":"validation","vocabulary":"credit"},{"role":"resources","vocabulary":"credit"},{"role":"investigation","vocabulary":"credit"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-4907-951X","authenticated-orcid":false,"given":"Alexey","family":"Kolmakov","sequence":"additional","affiliation":[{"name":"A.A. Baikov Institute of Metallurgy and Materials Science, Russian Academy of Sciences, 119991 Moscow, Russia"}],"role":[{"vocabulary":"crossref","role":"author"},{"role":"resources","vocabulary":"credit"},{"role":"supervision","vocabulary":"credit"}]},{"given":"Olga","family":"Rybalchenko","sequence":"additional","affiliation":[{"name":"A.A. 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