{"title":"Phase equilibria in the Fe-rich corner of the Fe-Nb-Zr system at 1200 °C","authors":"M.R. Tolosa , G. Aurelio , L. Acosta , N. Nieva","doi":"10.1016/j.intermet.2025.108712","DOIUrl":null,"url":null,"abstract":"<div><div>The Fe-rich corner of the Fe-Nb-Zr phase diagram was studied at 1200 °C by using synchrotron X-ray diffraction and quantitative electron probe microanalysis. The Fe<sub>2</sub>Nb(C14) hexagonal Laves phase, Fe<sub>23</sub>Zr<sub>6</sub> and Fe(α) compounds were found. The existence of two three-phase fields (Fe<sub>2</sub>(Zr<sub>1-x</sub>Nbx)(C14) + Fe(α) + Fe<sub>23</sub>Zr<sub>6</sub>) and (Fe<sub>2</sub>(Zr<sub>1-x</sub>Nb<sub>x</sub>)(C14) + Fe<sub>2</sub>Zr(C15) + Fe<sub>23</sub>Zr<sub>6</sub>) and five two-phase fields (Fe<sub>2</sub>(Zr<sub>1-x</sub>Nb<sub>x</sub>)C14 + Fe(α)), (Fe(α) + Fe<sub>23</sub>Zr<sub>6</sub>), (Fe<sub>23</sub>Zr<sub>6</sub> + Fe<sub>2</sub>Zr(C15)), (Fe<sub>2</sub>(Zr<sub>1-x</sub>Nb<sub>x</sub>)(C14) + Fe<sub>23</sub>Zr<sub>6</sub>) and (Fe<sub>2</sub>(Zr<sub>1-x</sub>Nb<sub>x</sub>)(C14) + Fe<sub>2</sub>Zr(C15)) are proposed in the present work. The phase diagram section at 1200 °C in the Fe-rich corner of the Fe-Nb-Zr system has been re-drawn.</div></div>","PeriodicalId":331,"journal":{"name":"Intermetallics","volume":"180 ","pages":"Article 108712"},"PeriodicalIF":4.8000,"publicationDate":"2025-02-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Intermetallics","FirstCategoryId":"88","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0966979525000779","RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"CHEMISTRY, PHYSICAL","Score":null,"Total":0}
引用次数: 0
Abstract
The Fe-rich corner of the Fe-Nb-Zr phase diagram was studied at 1200 °C by using synchrotron X-ray diffraction and quantitative electron probe microanalysis. The Fe2Nb(C14) hexagonal Laves phase, Fe23Zr6 and Fe(α) compounds were found. The existence of two three-phase fields (Fe2(Zr1-xNbx)(C14) + Fe(α) + Fe23Zr6) and (Fe2(Zr1-xNbx)(C14) + Fe2Zr(C15) + Fe23Zr6) and five two-phase fields (Fe2(Zr1-xNbx)C14 + Fe(α)), (Fe(α) + Fe23Zr6), (Fe23Zr6 + Fe2Zr(C15)), (Fe2(Zr1-xNbx)(C14) + Fe23Zr6) and (Fe2(Zr1-xNbx)(C14) + Fe2Zr(C15)) are proposed in the present work. The phase diagram section at 1200 °C in the Fe-rich corner of the Fe-Nb-Zr system has been re-drawn.
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This journal is a platform for publishing innovative research and overviews for advancing our understanding of the structure, property, and functionality of complex metallic alloys, including intermetallics, metallic glasses, and high entropy alloys.
The journal reports the science and engineering of metallic materials in the following aspects:
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