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and Entrepreneurship Team-Automotive Light Alloy Innovation Team","award":["CSTB2022NSCQ-MSX1289"],"award-info":[{"award-number":["CSTB2022NSCQ-MSX1289"]}]},{"name":"Zhejiang Province Leading Innovation and Entrepreneurship Team-Automotive Light Alloy Innovation Team","award":["2022R01018"],"award-info":[{"award-number":["2022R01018"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Materials"],"abstract":"<jats:p>This paper investigates the effects of Y content on the microstructure and mechanical properties of Mg-9Gd-xY-0.5Zr alloys. The mechanical properties, together with the grain size, first increase and then decrease, exhibiting a non-monotonous change with the increase in Y content. The alloy with 3 wt.% Y exhibits the best mechanical properties compared to the Y free alloy, with an increase in ultimate tensile strength and yield strength of 33.4% and 19.2%, respectively. However, further increase in the Y content (5 wt.%) does not enhance the strength but promotes the growth of the Mg5(Gd,Y), becoming nucleation points and propagation paths for cracks, leading to a decrease in performance. The cubic phase REH2 and oxide are not the reasons for the poor ductility in as-cast Mg-9Gd-xY-0.5Zr alloys due to low content, and the crystallographic orientation relationship between REH2 and \u03b1-Mg is (220)REH2\/\/(112\u00af0)Mg, and the interface mismatch is 9.13%. This paper systematically prepares and investigates the high-strength as-cast Mg-Gd-Y-Zr alloy, which has important guiding significance.<\/jats:p>","DOI":"10.3390\/ma18112475","type":"journal-article","created":{"date-parts":[[2025,5,25]],"date-time":"2025-05-25T20:26:50Z","timestamp":1748204810000},"page":"2475","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":7,"title":["Insight into Y Content on Microstructure and Mechanical Properties of Mg-Gd-Y-Zr Alloy"],"prefix":"10.3390","volume":"18","author":[{"given":"Yongfeng","family":"Li","sequence":"first","affiliation":[{"name":"National Engineering Research Center for Magnesium Alloys, National Key Laboratory of Advanced Casting Technologies, College of Materials Science and Engineering, Chongqing University, Chongqing 400044, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-5479-5249","authenticated-orcid":false,"given":"Ang","family":"Zhang","sequence":"additional","affiliation":[{"name":"National Engineering Research Center for Magnesium Alloys, National Key Laboratory of Advanced Casting Technologies, College of Materials Science and Engineering, Chongqing University, Chongqing 400044, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Chuangming","family":"Li","sequence":"additional","affiliation":[{"name":"National Engineering Research Center for Magnesium Alloys, National Key Laboratory of Advanced Casting Technologies, College of Materials Science and Engineering, Chongqing University, Chongqing 400044, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Hecong","family":"Xie","sequence":"additional","affiliation":[{"name":"National Engineering Research Center for Magnesium Alloys, National Key Laboratory of Advanced Casting Technologies, College of Materials Science and Engineering, Chongqing University, Chongqing 400044, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Hengrui","family":"Hu","sequence":"additional","affiliation":[{"name":"National Engineering Research Center for Magnesium Alloys, National Key Laboratory of Advanced Casting Technologies, College of Materials Science and Engineering, Chongqing University, Chongqing 400044, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-2500-2462","authenticated-orcid":false,"given":"Yuyang","family":"Gao","sequence":"additional","affiliation":[{"name":"National Engineering Research Center for Magnesium Alloys, National Key Laboratory of Advanced Casting Technologies, College of Materials Science and Engineering, Chongqing University, Chongqing 400044, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yuhong","family":"Cui","sequence":"additional","affiliation":[{"name":"Qinghai Salt Lake Teli Magnesium Co., Ltd., Xining 810000, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Zhihua","family":"Dong","sequence":"additional","affiliation":[{"name":"National Engineering Research Center for Magnesium Alloys, National Key Laboratory of Advanced Casting Technologies, College of Materials Science and Engineering, Chongqing University, Chongqing 400044, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Tian","family":"Li","sequence":"additional","affiliation":[{"name":"Zhejiang Wanfeng Precision Casting Co., Ltd., Shaoxing 312000, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Bin","family":"Jiang","sequence":"additional","affiliation":[{"name":"National Engineering Research Center for Magnesium Alloys, National Key Laboratory of Advanced Casting Technologies, College of Materials Science and Engineering, Chongqing University, Chongqing 400044, China"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2025,5,25]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"671","DOI":"10.1016\/j.scriptamat.2010.06.029","article-title":"Preface to the viewpoint set on: The current state of magnesium alloy science and technology","volume":"63","author":"Agnew","year":"2010","journal-title":"Scr. 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