{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,9]],"date-time":"2026-09-09T01:52:05Z","timestamp":1788918725961,"version":"build-2803163510"},"reference-count":25,"publisher":"MDPI AG","issue":"9","license":[{"start":{"date-parts":[[2020,4,28]],"date-time":"2020-04-28T00:00:00Z","timestamp":1588032000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100010011","name":"Jiangsu Postdoctoral Research Foundation","doi-asserted-by":"publisher","award":["2018K055C"],"award-info":[{"award-number":["2018K055C"]}],"id":[{"id":"10.13039\/501100010011","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/100007567","name":"City University of Hong Kong","doi-asserted-by":"publisher","award":["7005105 and 7005264"],"award-info":[{"award-number":["7005105 and 7005264"]}],"id":[{"id":"10.13039\/100007567","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Materials"],"abstract":"<jats:p>During pulsed laser welding of AZ 31B magnesium (Mg) alloy and T2 pure copper (Cu), Cu2Mg and Mg2Cu are generated, but the bonding ability of the two compounds is usually weak, resulting in low strength. In order to improve the joint of two dissimilar metals, a zinc interlayer was inserted between the Mg alloy and Cu, and the effects of the thickness of the Zn interlayer on the microstructure and properties of the joint were studied. The fused zone consisted of Cu2Mg and MgZn, and, according to first-principles calculation, in the same energy range, the area enclosed by the density of the state curve of MgZn was larger than that of Cu2Mg. Hence, the bonding ability of MgZn was better than that of Cu2Mg, and MgZn improved the strength of the welded joint. The most advantageous thickness of the Zn interlayer was 0.1 mm, and the shear strength was 48.15 MPa that was 161% higher than that of the directly welded Mg\/Cu joint.<\/jats:p>","DOI":"10.3390\/ma13092053","type":"journal-article","created":{"date-parts":[[2020,4,28]],"date-time":"2020-04-28T10:30:58Z","timestamp":1588069858000},"page":"2053","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":17,"title":["Improvement of the Laser-Welded Lap Joint of Dissimilar Mg Alloy and Cu by Incorporation of a Zn Interlayer"],"prefix":"10.3390","volume":"13","author":[{"given":"Jun","family":"Dai","sequence":"first","affiliation":[{"name":"Changshu Institute of Technology, School of Automotive Engineering, Changshu 215500, China"},{"name":"Department of Physics, Department of Materials Science and Engineering, and Department of Biomedical Engineering, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Banglong","family":"Yu","sequence":"additional","affiliation":[{"name":"Changshu Institute of Technology, School of Automotive Engineering, Changshu 215500, China"},{"name":"School of Mechanical and Electrical Engineering, Soochow University, Suzhou 215021, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Qingdong","family":"Ruan","sequence":"additional","affiliation":[{"name":"Department of Physics, Department of Materials Science and Engineering, and Department of Biomedical Engineering, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-5581-4883","authenticated-orcid":false,"given":"Paul K.","family":"Chu","sequence":"additional","affiliation":[{"name":"Department of Physics, Department of Materials Science and Engineering, and Department of Biomedical Engineering, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2020,4,28]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","unstructured":"Chen, X., Lei, Z.L., Chen, Y.B., Han, Y., Jiang, M., Tian, Z., Bi, J., Lin, S.B., and Jiang, N. (2019). Effect of Laser Beam Oscillation on Laser Welding-Brazing of Ti\/Al Dissimilar Metals. Materials, 12.","DOI":"10.3390\/ma12244165"},{"key":"ref_2","doi-asserted-by":"crossref","unstructured":"Chitturi, V., Pedapati, S.R., and Awang, M. (2019). Effect of Tilt Angle and Pin Depth on Dissimilar Friction Stir Lap Welded Joints of Aluminum and Steel Alloys. Materials, 12.","DOI":"10.3390\/ma12233901"},{"key":"ref_3","doi-asserted-by":"crossref","first-page":"6922","DOI":"10.1016\/j.apsusc.2007.02.019","article-title":"Characterization of rare-earth conversion films formed on the AZ31 magnesium alloy and its relation with corrosion protection","volume":"253","author":"Montemor","year":"2007","journal-title":"Appl. Surf. Sci."},{"key":"ref_4","doi-asserted-by":"crossref","first-page":"2772","DOI":"10.1016\/j.matlet.2006.10.028","article-title":"Effect of cooling rate on ignition point of AZ91D\u20130.98 wt% Ce magnesium alloy","volume":"61","author":"Li","year":"2007","journal-title":"Mater. Lett."},{"key":"ref_5","doi-asserted-by":"crossref","first-page":"214","DOI":"10.1016\/j.msea.2006.09.124","article-title":"Effect of microstructure on fatigue behavior of AZ31 magnesium alloy","volume":"468","author":"Ishihara","year":"2007","journal-title":"Mater. Sci. Eng. A"},{"key":"ref_6","first-page":"12","article-title":"Study and Application Development of Strengthening Theory of Copper Alloy with High Strength and High Conductivity","volume":"1","author":"Xie","year":"2007","journal-title":"Heat Treat. Met."},{"key":"ref_7","first-page":"98","article-title":"Research progress and application of plasma spraying on copper alloy surface","volume":"35","author":"Chen","year":"2010","journal-title":"Heat Treat. Met."},{"key":"ref_8","doi-asserted-by":"crossref","first-page":"1303","DOI":"10.1116\/1.3237149","article-title":"Development of copper-alloy Matsumoto\u2013Ohtsuka-type vacuum flanges and its application to accelerator beam pipes","volume":"27","author":"Suetsugu","year":"2009","journal-title":"J. Vac. Sci. Technol. A"},{"key":"ref_9","doi-asserted-by":"crossref","first-page":"4205","DOI":"10.1007\/BF00361499","article-title":"Laser welding of dissimilar metal combinations","volume":"30","author":"Sun","year":"1995","journal-title":"J. Mater. Sci."},{"key":"ref_10","doi-asserted-by":"crossref","first-page":"997","DOI":"10.1016\/S1003-6326(09)60248-X","article-title":"Influences of diffusion bonding process parameters on bond characteristics of Mg\u2013Cu dissimilar joints","volume":"20","author":"Mahendran","year":"2010","journal-title":"Trans. Nonferr. Met. Soc."},{"key":"ref_11","doi-asserted-by":"crossref","first-page":"451","DOI":"10.1179\/1362171814Y.0000000204","article-title":"Cold metal transfer welding\u2013brazing of magnesium to pure copper","volume":"19","author":"Cao","year":"2014","journal-title":"Sci. Technol. Weld. Join."},{"key":"ref_12","doi-asserted-by":"crossref","first-page":"261","DOI":"10.1016\/j.matdes.2015.06.104","article-title":"Microstructure and mechanical properties of ultrasonic spot welded copper-to-magnesium alloy joints","volume":"84","author":"Macwan","year":"2015","journal-title":"Mater. Des."},{"key":"ref_13","doi-asserted-by":"crossref","first-page":"689","DOI":"10.1007\/s00170-008-1645-8","article-title":"Developing diffusion bonding windows for joining AZ31B magnesium and copper alloys","volume":"42","author":"Mahendran","year":"2009","journal-title":"Int. J. Adv. Maunf. Technol."},{"key":"ref_14","first-page":"475","article-title":"Diffusion Bonding Preparation of AZ31B\/Cu Composite and Analysis of Interface Microstructure","volume":"43","author":"Du","year":"2014","journal-title":"Rare Met. Mater. Eng."},{"key":"ref_15","doi-asserted-by":"crossref","first-page":"523","DOI":"10.1179\/174329306X122794","article-title":"Study on TIG welding of dissimilar Mg alloy and Cu with Fe as interlayer","volume":"11","author":"Liu","year":"2006","journal-title":"Sci. Technol. Weld. Join."},{"key":"ref_16","doi-asserted-by":"crossref","first-page":"206","DOI":"10.1016\/j.msea.2007.04.089","article-title":"Study on the dissimilar magnesium alloy and copper lap joint by TIG welding","volume":"476","author":"Liu","year":"2008","journal-title":"Mater. Sci. Eng. A"},{"key":"ref_17","doi-asserted-by":"crossref","first-page":"1427","DOI":"10.1007\/s11665-018-3166-4","article-title":"Fiber Laser Welding\u2013Brazing Characteristics of Dissimilar Metals AZ31B Mg Alloys to Copper with Mg-Based Filler","volume":"3","author":"Zhao","year":"2018","journal-title":"J. Mater. Eng. Perform."},{"key":"ref_18","doi-asserted-by":"crossref","first-page":"51","DOI":"10.1016\/j.matdes.2015.04.022","article-title":"Influence of laser power on microstructure and mechanical properties of fiber laser-tungsten inert gas hybrid welded Mg\/Cu dissimilar joints","volume":"78","author":"Tan","year":"2015","journal-title":"Mater. Des."},{"key":"ref_19","doi-asserted-by":"crossref","first-page":"109897","DOI":"10.1016\/j.matchar.2019.109897","article-title":"Microstructure evolution of Mg\/Cu dissimilar metal jointed by ultrasonic-induced transient liquid phase bonding with Zn interlayer","volume":"157","author":"Lang","year":"2019","journal-title":"Mater. Charact."},{"key":"ref_20","doi-asserted-by":"crossref","first-page":"2717","DOI":"10.1088\/0953-8984\/14\/11\/301","article-title":"First-principles simulation: Ideas, illustrations and the CASTEP code","volume":"11","author":"Segall","year":"2002","journal-title":"J. Phys. Condens. Matter"},{"key":"ref_21","first-page":"302","article-title":"First-Principles Studies of the Effects of Microalloy Elements on Fe\/Al Interface for Laser Lap Welding of Steel and Aluminum","volume":"41","author":"Yan","year":"2012","journal-title":"Rare Met. Mater. Eng."},{"key":"ref_22","doi-asserted-by":"crossref","first-page":"32","DOI":"10.1016\/j.matdes.2012.01.039","article-title":"Effect of bonding time on microstructure and mechanical properties of transient liquid phase bonded magnesium AZ31 alloy","volume":"38","author":"Jin","year":"2012","journal-title":"Mater. Des."},{"key":"ref_23","doi-asserted-by":"crossref","first-page":"19","DOI":"10.1016\/j.matdes.2015.11.071","article-title":"Microstructure, mechanical properties and mechanism of ultrasound-assisted rapid transient liquid phase bonding of magnesium alloy in air","volume":"91","author":"Xie","year":"2016","journal-title":"Mater. Des."},{"key":"ref_24","first-page":"21","article-title":"Two-Dimensional Transition Metal Dichalcogenides as the Promising Anodes for Potassium Ion Battery from First-principles Prediction","volume":"42","author":"Zhang","year":"2019","journal-title":"Phys. Chem. Chem. Phys."},{"key":"ref_25","doi-asserted-by":"crossref","first-page":"210","DOI":"10.1016\/j.commatsci.2014.06.031","article-title":"First-principles calculations of elastic and thermodynamic properties of the four main intermetallic phases in Al\u2013Zn\u2013Mg\u2013Cu alloys","volume":"93","author":"Li","year":"2014","journal-title":"Comput. Mater. Sci"}],"container-title":["Materials"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.mdpi.com\/1996-1944\/13\/9\/2053\/pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,10,13]],"date-time":"2025-10-13T14:09:22Z","timestamp":1760364562000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.mdpi.com\/1996-1944\/13\/9\/2053"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2020,4,28]]},"references-count":25,"journal-issue":{"issue":"9","published-online":{"date-parts":[[2020,5]]}},"alternative-id":["ma13092053"],"URL":"https:\/\/doi.org\/10.3390\/ma13092053","relation":{},"ISSN":["1996-1944"],"issn-type":[{"value":"1996-1944","type":"electronic"}],"subject":[],"published":{"date-parts":[[2020,4,28]]}}}