{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,28]],"date-time":"2026-05-28T00:45:49Z","timestamp":1779929149909,"version":"3.53.1"},"reference-count":24,"publisher":"MDPI AG","issue":"8","license":[{"start":{"date-parts":[[2025,4,17]],"date-time":"2025-04-17T00:00:00Z","timestamp":1744848000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"The National key research and development program of China","award":["Nos. 2021YFB3503101"],"award-info":[{"award-number":["Nos. 2021YFB3503101"]}]},{"name":"The National key research and development program of China","award":["Shi. 24160770Z"],"award-info":[{"award-number":["Shi. 24160770Z"]}]},{"name":"The National key research and development program of China","award":["Shi. 23160360ZD"],"award-info":[{"award-number":["Shi. 23160360ZD"]}]},{"name":"The National key research and development program of China","award":["Nos. CXZX-B-202308-0008"],"award-info":[{"award-number":["Nos. CXZX-B-202308-0008"]}]},{"name":"Major Program of Central Iron and Steel Research Institute R&amp;D special fund","award":["Nos. 2021YFB3503101"],"award-info":[{"award-number":["Nos. 2021YFB3503101"]}]},{"name":"Major Program of Central Iron and Steel Research Institute R&amp;D special fund","award":["Shi. 24160770Z"],"award-info":[{"award-number":["Shi. 24160770Z"]}]},{"name":"Major Program of Central Iron and Steel Research Institute R&amp;D special fund","award":["Shi. 23160360ZD"],"award-info":[{"award-number":["Shi. 23160360ZD"]}]},{"name":"Major Program of Central Iron and Steel Research Institute R&amp;D special fund","award":["Nos. CXZX-B-202308-0008"],"award-info":[{"award-number":["Nos. CXZX-B-202308-0008"]}]},{"name":"the Research and Application of Rare Earth Microalloying Technology in Steel Industry","award":["Nos. 2021YFB3503101"],"award-info":[{"award-number":["Nos. 2021YFB3503101"]}]},{"name":"the Research and Application of Rare Earth Microalloying Technology in Steel Industry","award":["Shi. 24160770Z"],"award-info":[{"award-number":["Shi. 24160770Z"]}]},{"name":"the Research and Application of Rare Earth Microalloying Technology in Steel Industry","award":["Shi. 23160360ZD"],"award-info":[{"award-number":["Shi. 23160360ZD"]}]},{"name":"the Research and Application of Rare Earth Microalloying Technology in Steel Industry","award":["Nos. CXZX-B-202308-0008"],"award-info":[{"award-number":["Nos. CXZX-B-202308-0008"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Materials"],"abstract":"<jats:p>The effect of different Fe contents on the phases of Sm\u2013Co\u2013Fe ternary alloys during solidification is investigated herein by melting the alloys using a non-consumable vacuum arc furnace. In particular, the phases of the Sm25.5CobalFex (x = 19, 21, 23, and 25 wt.%) alloys are investigated after solidification and aging. The results obtained from Cai Li\u2019s modified Miedema model show a strong interaction between the Sm\u2013Co alloy atoms. Additionally, the results obtained from the Toop geometric model show a strong interaction between the Sm\u2013Co\u2013Fe ternary alloy atoms, enabling the formation of intermetallic compounds. The experimental results show that when the Sm content is 25.5 wt.%, the SmCo5 phase gradually decreases as the Fe content increases and disappears when the Fe content is 25 wt.%. Thermodynamic calculations show that when the Fe content is 19 wt.%, there is a region where the SmCo5 and Sm2Co17 phases co-exist. As the Fe content increases, this region gradually decreases. For a 25 wt.% Fe content, the Sm2Co17 and SmCo5 two-phase region does not appear when the Sm content varies. The samples are aged at 1143 \u00b0C for 12 h, then melted and cut. The phase results obtained by scanning are consistent with the calculated results. In this study, the effect of each constituent element of Sm\u2013Co\u2013Fe ternary alloys on their solidification phases is investigated, providing a strong foundation for studying the 2:17-type Sm\u2013Co magnetic materials obtained after melting and aging a five-element Sm\u2013Co alloy.<\/jats:p>","DOI":"10.3390\/ma18081854","type":"journal-article","created":{"date-parts":[[2025,4,17]],"date-time":"2025-04-17T20:05:56Z","timestamp":1744920356000},"page":"1854","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":5,"title":["Effect of Fe Content on Phase Behavior of Sm\u2013Co\u2013Fe Alloys During Solidification and Aging"],"prefix":"10.3390","volume":"18","author":[{"given":"Zhi","family":"Zhu","sequence":"first","affiliation":[{"name":"Metallurgical Technology Institute, Central Iron and Steel Research Institute Co., Ltd., Beijing 100081, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yikun","family":"Fang","sequence":"additional","affiliation":[{"name":"Division of Functional Materials, Central Iron and Steel Research Institute Co., Ltd., Beijing 100081, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Wei","family":"Wu","sequence":"additional","affiliation":[{"name":"Metallurgical Technology Institute, Central Iron and Steel Research Institute Co., Ltd., Beijing 100081, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-2439-3366","authenticated-orcid":false,"given":"Bo","family":"Zhao","sequence":"additional","affiliation":[{"name":"Metallurgical Technology Institute, Central Iron and Steel Research Institute Co., Ltd., Beijing 100081, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Meng","family":"Zheng","sequence":"additional","affiliation":[{"name":"Division of Functional Materials, Central Iron and Steel Research Institute Co., Ltd., Beijing 100081, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ming","family":"Lei","sequence":"additional","affiliation":[{"name":"Metallurgical Technology Institute, Central Iron and Steel Research Institute Co., Ltd., Beijing 100081, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jiashuo","family":"Zhang","sequence":"additional","affiliation":[{"name":"Metallurgical Technology Institute, Central Iron and Steel Research Institute Co., Ltd., Beijing 100081, China"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2025,4,17]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"110538","DOI":"10.1016\/j.mtcomm.2024.110538","article-title":"Historical overview and recent advances in permanent magnet materials","volume":"41","author":"Islam","year":"2024","journal-title":"Mater. 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