{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,11]],"date-time":"2026-05-11T20:26:39Z","timestamp":1778531199865,"version":"3.51.4"},"reference-count":27,"publisher":"MDPI AG","issue":"15","license":[{"start":{"date-parts":[[2023,8,4]],"date-time":"2023-08-04T00:00:00Z","timestamp":1691107200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"Fundamental Research Program of Shanxi Province","award":["202103021223181"],"award-info":[{"award-number":["202103021223181"]}]},{"name":"Fundamental Research Program of Shanxi Province","award":["202103021224193"],"award-info":[{"award-number":["202103021224193"]}]},{"name":"Fundamental Research Program of Shanxi Province","award":["202203021212143"],"award-info":[{"award-number":["202203021212143"]}]},{"name":"Fundamental Research Program of Shanxi Province","award":["11013213"],"award-info":[{"award-number":["11013213"]}]},{"name":"Fundamental Research Program of Shanxi Province","award":["11013434"],"award-info":[{"award-number":["11013434"]}]},{"name":"High-level Talent Fund of North University of Chin","award":["202103021223181"],"award-info":[{"award-number":["202103021223181"]}]},{"name":"High-level Talent Fund of North University of Chin","award":["202103021224193"],"award-info":[{"award-number":["202103021224193"]}]},{"name":"High-level Talent Fund of North University of Chin","award":["202203021212143"],"award-info":[{"award-number":["202203021212143"]}]},{"name":"High-level Talent Fund of North University of Chin","award":["11013213"],"award-info":[{"award-number":["11013213"]}]},{"name":"High-level Talent Fund of North University of Chin","award":["11013434"],"award-info":[{"award-number":["11013434"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Materials"],"abstract":"<jats:p>Al\/Fe bimetals prepared by a compound casting method, combining the excellent properties of both the Al alloy and the ductile cast iron, exhibit great potential for application in achieving engine weight reduction. However, the problem of insufficient interfacial bonding ability because of the difference in thermophysical properties of Al and Fe is particularly prominent. Therefore, in this work, the electrodeposited Cu coating on the surface of the Fe matrix was used as the interlayer of Al\/Fe bimetal fabricated by coupling hot-dipping with compound casting to solve the above problem. The effect of Cu interlayer thickness on the interfacial microstructure and shear strength of bimetal was investigated. The experimental results showed that the shear strength up to 77.65 MPa in regard to Al\/Fe bimetal with a 5 \u03bcm Cu interlayer was obtained. No Cu element was detected at the interface of bimetal regardless of the thickness of the Cu interlayer. The diffusion behavior of the Cu atom at the interface and the influence of the Cu layer at the atomic scale on diffusion reaction and the Al\/Fe interface were further revealed by combining first-principle and molecular dynamics calculations. The simulation results revealed that the Cu layer gradually dissolved into an Al alloy at 750 \u00b0C, thereby promoting the diffusion reaction of the Al\/Fe interface. Meanwhile, the protective role of the Cu layer against oxidation on the surface of the Fe matrix was confirmed. As a result, the interfacial bonding performance was enhanced when the Cu interlayer was introduced.<\/jats:p>","DOI":"10.3390\/ma16155469","type":"journal-article","created":{"date-parts":[[2023,8,4]],"date-time":"2023-08-04T09:28:29Z","timestamp":1691141309000},"page":"5469","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":9,"title":["The Effect of the Cu Interlayer on the Interfacial Microstructure and Mechanical Properties of Al\/Fe Bimetal by Compound Casting"],"prefix":"10.3390","volume":"16","author":[{"given":"Shiyuan","family":"Liu","sequence":"first","affiliation":[{"name":"College of Materials Science and Engineering, North University of China, Taiyuan 030051, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Hong","family":"Xu","sequence":"additional","affiliation":[{"name":"College of Materials Science and Engineering, North University of China, Taiyuan 030051, China"},{"name":"Shanxi Provincial Key Laboratory for Controlled Metal Solidification and Precision Manufacturing, Taiyuan 030051, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-4827-9931","authenticated-orcid":false,"given":"Baohong","family":"Zhang","sequence":"additional","affiliation":[{"name":"College of Materials Science and Engineering, North University of China, Taiyuan 030051, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Guowei","family":"Zhang","sequence":"additional","affiliation":[{"name":"College of Materials Science and Engineering, North University of China, Taiyuan 030051, China"},{"name":"Shanxi Provincial Key Laboratory for Controlled Metal Solidification and Precision Manufacturing, Taiyuan 030051, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Long","family":"Bai","sequence":"additional","affiliation":[{"name":"Shanxi Diesel Engine Industry Co., Ltd., Datong 037036, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Heqian","family":"Song","sequence":"additional","affiliation":[{"name":"College of Materials Science and Engineering, North University of China, Taiyuan 030051, China"},{"name":"Shanxi Provincial Key Laboratory for Controlled Metal Solidification and Precision Manufacturing, Taiyuan 030051, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Dan","family":"Zhang","sequence":"additional","affiliation":[{"name":"College of Materials Science and Engineering, North University of China, Taiyuan 030051, China"},{"name":"Shanxi Provincial Key Laboratory for Controlled Metal Solidification and Precision Manufacturing, Taiyuan 030051, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-7167-8378","authenticated-orcid":false,"given":"Chao","family":"Chang","sequence":"additional","affiliation":[{"name":"School of Applied Science, Taiyuan University of Science and Technology, Taiyuan 030024, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Huan","family":"Yu","sequence":"additional","affiliation":[{"name":"College of Materials Science and Engineering, North University of China, Taiyuan 030051, China"},{"name":"Shanxi Provincial Key Laboratory for Controlled Metal Solidification and Precision Manufacturing, Taiyuan 030051, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Chenglong","family":"Yang","sequence":"additional","affiliation":[{"name":"Shanxi Diesel Engine Industry Co., Ltd., Datong 037036, China"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2023,8,4]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"1","DOI":"10.1007\/s41230-022-2105-z","article-title":"Effect of HEA\/Al composite interlayer on microstructure and mechanical property of Ti\/Mg bimetal composite by solid-liquid compound casting","volume":"20","author":"Cheng","year":"2023","journal-title":"China Foundry"},{"key":"ref_2","doi-asserted-by":"crossref","first-page":"1075","DOI":"10.1016\/j.jma.2021.02.002","article-title":"Improving mechanical properties of AZ91D magnesium\/A356 aluminum bimetal prepared by compound casting via a high velocity oxygen fuel sprayed Ni coating","volume":"10","author":"Li","year":"2021","journal-title":"J. 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