Effect of Rare Earth Element on Microstructure and Properties of <i>in situ</i> Synthesized TiB<sub>2</sub>/Al Composites
The effect of rare earth element Ce, Sc and Er on TiB<sub>2</sub> particles and matrix alloy micros-tructure of TiB<sub>2</sub>/Al composites was studied with <i>in situ</i> synthesis method. It shows that the addition of rare earth element improves the microstruc...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | zho |
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Journal of Materials Engineering
2018-03-01
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| Series: | Cailiao gongcheng |
| Subjects: | |
| Online Access: | http://jme.biam.ac.cn/CN/Y2018/V46/I3/98 |
| _version_ | 1797967078000427008 |
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| author | QU Min LIU Xin CUI Yan LIU Feng-bin JIAO Zhi-wei LIU Yuan |
| author_facet | QU Min LIU Xin CUI Yan LIU Feng-bin JIAO Zhi-wei LIU Yuan |
| author_sort | QU Min |
| collection | DOAJ |
| description | The effect of rare earth element Ce, Sc and Er on TiB<sub>2</sub> particles and matrix alloy micros-tructure of TiB<sub>2</sub>/Al composites was studied with <i>in situ</i> synthesis method. It shows that the addition of rare earth element improves the microstructure and properties of TiB<sub>2</sub>/Al composites notably. The particles of TiB<sub>2</sub> are relatively homogenously distributed as adding 0.3% (mass fraction) rare earth element Sc and Er, moreover, it is Er that refines the microstructure of matrix alloy most significantly, then is Sc. Similarly, it is demonstrated that the addition of Sc and Er results in better tensile strength, which is enhanced by 32% and 31%, respectively; the addition of Er also leads to the best ductility by 85% with optimal tensile property. Meanwhile, fracture morphology analysis reveals that the fracture of the composites is microporous gathered ductile fracture when adding Sc and Er. Finally, it is verified that the mechanism of rare earth element on composites lies in two aspects:one is that the addition of rare earth element improves the wettability of the composites and suppresses the agglomeration of TiB<sub>2</sub> particles; the other is that the addition of rare earth element refines the microstructure of matrix alloy and then improves the tensile strength of the composites. |
| first_indexed | 2024-04-11T02:25:29Z |
| format | Article |
| id | doaj.art-108b0896372244d59fad444de7ec3a70 |
| institution | Directory Open Access Journal |
| issn | 1001-4381 1001-4381 |
| language | zho |
| last_indexed | 2024-04-11T02:25:29Z |
| publishDate | 2018-03-01 |
| publisher | Journal of Materials Engineering |
| record_format | Article |
| series | Cailiao gongcheng |
| spelling | doaj.art-108b0896372244d59fad444de7ec3a702023-01-02T22:49:43ZzhoJournal of Materials EngineeringCailiao gongcheng1001-43811001-43812018-03-014639810410.11868/j.issn.1001-4381.2017.001122201803001122Effect of Rare Earth Element on Microstructure and Properties of <i>in situ</i> Synthesized TiB<sub>2</sub>/Al CompositesQU Min0LIU Xin1CUI Yan2LIU Feng-bin3JIAO Zhi-wei4LIU Yuan5School of Mechanical and Material Engineering, North China University of Technology, Beijing 100144, ChinaSchool of Mechanical and Material Engineering, North China University of Technology, Beijing 100144, ChinaSchool of Mechanical and Material Engineering, North China University of Technology, Beijing 100144, ChinaSchool of Mechanical and Material Engineering, North China University of Technology, Beijing 100144, ChinaSchool of Mechanical and Material Engineering, North China University of Technology, Beijing 100144, ChinaSchool of Mechanical and Material Engineering, North China University of Technology, Beijing 100144, ChinaThe effect of rare earth element Ce, Sc and Er on TiB<sub>2</sub> particles and matrix alloy micros-tructure of TiB<sub>2</sub>/Al composites was studied with <i>in situ</i> synthesis method. It shows that the addition of rare earth element improves the microstructure and properties of TiB<sub>2</sub>/Al composites notably. The particles of TiB<sub>2</sub> are relatively homogenously distributed as adding 0.3% (mass fraction) rare earth element Sc and Er, moreover, it is Er that refines the microstructure of matrix alloy most significantly, then is Sc. Similarly, it is demonstrated that the addition of Sc and Er results in better tensile strength, which is enhanced by 32% and 31%, respectively; the addition of Er also leads to the best ductility by 85% with optimal tensile property. Meanwhile, fracture morphology analysis reveals that the fracture of the composites is microporous gathered ductile fracture when adding Sc and Er. Finally, it is verified that the mechanism of rare earth element on composites lies in two aspects:one is that the addition of rare earth element improves the wettability of the composites and suppresses the agglomeration of TiB<sub>2</sub> particles; the other is that the addition of rare earth element refines the microstructure of matrix alloy and then improves the tensile strength of the composites.http://jme.biam.ac.cn/CN/Y2018/V46/I3/98rare earth elementTiB<sub>2</sub>/Al compositesmicrostructuretensile propertywettability |
| spellingShingle | QU Min LIU Xin CUI Yan LIU Feng-bin JIAO Zhi-wei LIU Yuan Effect of Rare Earth Element on Microstructure and Properties of <i>in situ</i> Synthesized TiB<sub>2</sub>/Al Composites Cailiao gongcheng rare earth element TiB<sub>2</sub>/Al composites microstructure tensile property wettability |
| title | Effect of Rare Earth Element on Microstructure and Properties of <i>in situ</i> Synthesized TiB<sub>2</sub>/Al Composites |
| title_full | Effect of Rare Earth Element on Microstructure and Properties of <i>in situ</i> Synthesized TiB<sub>2</sub>/Al Composites |
| title_fullStr | Effect of Rare Earth Element on Microstructure and Properties of <i>in situ</i> Synthesized TiB<sub>2</sub>/Al Composites |
| title_full_unstemmed | Effect of Rare Earth Element on Microstructure and Properties of <i>in situ</i> Synthesized TiB<sub>2</sub>/Al Composites |
| title_short | Effect of Rare Earth Element on Microstructure and Properties of <i>in situ</i> Synthesized TiB<sub>2</sub>/Al Composites |
| title_sort | effect of rare earth element on microstructure and properties of i in situ i synthesized tib sub 2 sub al composites |
| topic | rare earth element TiB<sub>2</sub>/Al composites microstructure tensile property wettability |
| url | http://jme.biam.ac.cn/CN/Y2018/V46/I3/98 |
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