In situ nanocrystals manipulate solidification behavior and microstructures of hypereutectic Al-Si alloys by Zr-based amorphous alloys
In this study, different contents (0.0, 0.1, 0.2, and 0.4 wt.%) of Zr55Cu30Al10Ni5 amorphous alloys (Zr-AA) are used to manipulate hypereutectic Al-Si alloys. The edge-to-edge model shows that there is a perfect lattice matching between the crystallized phases and α-Al and Si phases. The thermal ana...
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| Format: | Article |
| Language: | English |
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Elsevier
2020-05-01
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| Series: | Journal of Materials Research and Technology |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2238785419321106 |
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doaj-7ce1b2327ddc47cda3fb604cbddabfd7 |
|---|---|
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Article |
| collection |
DOAJ |
| language |
English |
| format |
Article |
| sources |
DOAJ |
| author |
Shuan Liu Xin Zhang He-Li Peng Xing Han Hong-Yu Yang Tao-Tao Li Lin Zhu Shuang Zhang Feng Qiu Zhi-Hao Bai Shu-Ming Chen Wei Zhou Qi-Chuan Jiang |
| spellingShingle |
Shuan Liu Xin Zhang He-Li Peng Xing Han Hong-Yu Yang Tao-Tao Li Lin Zhu Shuang Zhang Feng Qiu Zhi-Hao Bai Shu-Ming Chen Wei Zhou Qi-Chuan Jiang In situ nanocrystals manipulate solidification behavior and microstructures of hypereutectic Al-Si alloys by Zr-based amorphous alloys Journal of Materials Research and Technology Amorphous alloys Solidification behavior Microstructure manipulation Mechanical properties |
| author_facet |
Shuan Liu Xin Zhang He-Li Peng Xing Han Hong-Yu Yang Tao-Tao Li Lin Zhu Shuang Zhang Feng Qiu Zhi-Hao Bai Shu-Ming Chen Wei Zhou Qi-Chuan Jiang |
| author_sort |
Shuan Liu |
| title |
In situ nanocrystals manipulate solidification behavior and microstructures of hypereutectic Al-Si alloys by Zr-based amorphous alloys |
| title_short |
In situ nanocrystals manipulate solidification behavior and microstructures of hypereutectic Al-Si alloys by Zr-based amorphous alloys |
| title_full |
In situ nanocrystals manipulate solidification behavior and microstructures of hypereutectic Al-Si alloys by Zr-based amorphous alloys |
| title_fullStr |
In situ nanocrystals manipulate solidification behavior and microstructures of hypereutectic Al-Si alloys by Zr-based amorphous alloys |
| title_full_unstemmed |
In situ nanocrystals manipulate solidification behavior and microstructures of hypereutectic Al-Si alloys by Zr-based amorphous alloys |
| title_sort |
in situ nanocrystals manipulate solidification behavior and microstructures of hypereutectic al-si alloys by zr-based amorphous alloys |
| publisher |
Elsevier |
| series |
Journal of Materials Research and Technology |
| issn |
2238-7854 |
| publishDate |
2020-05-01 |
| description |
In this study, different contents (0.0, 0.1, 0.2, and 0.4 wt.%) of Zr55Cu30Al10Ni5 amorphous alloys (Zr-AA) are used to manipulate hypereutectic Al-Si alloys. The edge-to-edge model shows that there is a perfect lattice matching between the crystallized phases and α-Al and Si phases. The thermal analysis of solidification behavior of hypereutectic Al-Si alloys unmanipulated and manipulated by Zr-AA, indicates that the addition of Zr-AA greatly promotes the nucleation of primary Si and significantly accelerates the process of eutectic reaction. When manipulated by the optimal content of 0.2 wt.% Zr-AA, the sizes of α-Al dendrites and primary Si decrease from 212.46 μm and 19.24 μm to 143.39 μm and 16.47 μm, respectively. The eutectic Si changes from needle-like to rod-like and exhibits a mean size decrease from 20.21 μm to 11.69 μm. Meanwhile, alloys exhibit ultimate tensile strength of 362 MPa and fraction strain of 2.21% after 0.2 wt.% Zr-AA manipulation, which are 23% and 37% higher than those of the unmanipulated alloy (295 MPa and 1.61%). The strengthening mechanisms of hypereutectic Al-Si alloys manipulated by in situ nanocrystals crystallized in the melt are mainly attributed to the fine grain strengthening effect and precipitation strengthening effect. The increase in plasticity is due to the refinement and morphology improvement of Si phases. |
| topic |
Amorphous alloys Solidification behavior Microstructure manipulation Mechanical properties |
| url |
http://www.sciencedirect.com/science/article/pii/S2238785419321106 |
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doaj-7ce1b2327ddc47cda3fb604cbddabfd72020-11-25T03:54:33ZengElsevierJournal of Materials Research and Technology2238-78542020-05-019346444654In situ nanocrystals manipulate solidification behavior and microstructures of hypereutectic Al-Si alloys by Zr-based amorphous alloysShuan Liu0Xin Zhang1He-Li Peng2Xing Han3Hong-Yu Yang4Tao-Tao Li5Lin Zhu6Shuang Zhang7Feng Qiu8Zhi-Hao Bai9Shu-Ming Chen10Wei Zhou11Qi-Chuan Jiang12State Key Laboratory of Automotive Simulation and Control, Jilin University, China; Key Laboratory of Automobile Materials, Ministry of Education and Department of Materials Science and Engineering, Jilin University, Renmin Street NO. 5988, Changchun, Jilin Province, 130025, ChinaState Key Laboratory of Automotive Simulation and Control, Jilin University, China; Key Laboratory of Automobile Materials, Ministry of Education and Department of Materials Science and Engineering, Jilin University, Renmin Street NO. 5988, Changchun, Jilin Province, 130025, ChinaShanghai Spaceflight Precision Machinery Institute, Shanghai, 201600, ChinaShanghai Spaceflight Precision Machinery Institute, Shanghai, 201600, ChinaState Key Laboratory of Automotive Simulation and Control, Jilin University, China; School of Materials Science and Engineering, Jiangsu University of Science and Technology, Zhenjiang, 212003, Jiangsu, China; Yangzhou Fengming Photoel Ectric New Material Co., LTD., Yangzhou, 225117, Jiangsu, China; Corresponding authors.State Key Laboratory of Automotive Simulation and Control, Jilin University, China; Key Laboratory of Automobile Materials, Ministry of Education and Department of Materials Science and Engineering, Jilin University, Renmin Street NO. 5988, Changchun, Jilin Province, 130025, ChinaState Key Laboratory of Automotive Simulation and Control, Jilin University, China; Key Laboratory of Automobile Materials, Ministry of Education and Department of Materials Science and Engineering, Jilin University, Renmin Street NO. 5988, Changchun, Jilin Province, 130025, ChinaEngineering Training Center and School of Mechanical and Aerospace Engineering, Jilin University, Renmin Street NO. 5988, Changchun, Jilin Province, 130025, ChinaState Key Laboratory of Automotive Simulation and Control, Jilin University, China; Key Laboratory of Automobile Materials, Ministry of Education and Department of Materials Science and Engineering, Jilin University, Renmin Street NO. 5988, Changchun, Jilin Province, 130025, China; Corresponding authors.Department of Materials and Engineering, Jiangsu University of Technology, NO. 1801 Zhongwu Street, 213001 Changzhou, ChinaState Key Laboratory of Automotive Simulation and Control, Jilin University, ChinaKey Laboratory of Automobile Materials, Ministry of Education and Department of Materials Science and Engineering, Jilin University, Renmin Street NO. 5988, Changchun, Jilin Province, 130025, ChinaState Key Laboratory of Automotive Simulation and Control, Jilin University, China; Key Laboratory of Automobile Materials, Ministry of Education and Department of Materials Science and Engineering, Jilin University, Renmin Street NO. 5988, Changchun, Jilin Province, 130025, ChinaIn this study, different contents (0.0, 0.1, 0.2, and 0.4 wt.%) of Zr55Cu30Al10Ni5 amorphous alloys (Zr-AA) are used to manipulate hypereutectic Al-Si alloys. The edge-to-edge model shows that there is a perfect lattice matching between the crystallized phases and α-Al and Si phases. The thermal analysis of solidification behavior of hypereutectic Al-Si alloys unmanipulated and manipulated by Zr-AA, indicates that the addition of Zr-AA greatly promotes the nucleation of primary Si and significantly accelerates the process of eutectic reaction. When manipulated by the optimal content of 0.2 wt.% Zr-AA, the sizes of α-Al dendrites and primary Si decrease from 212.46 μm and 19.24 μm to 143.39 μm and 16.47 μm, respectively. The eutectic Si changes from needle-like to rod-like and exhibits a mean size decrease from 20.21 μm to 11.69 μm. Meanwhile, alloys exhibit ultimate tensile strength of 362 MPa and fraction strain of 2.21% after 0.2 wt.% Zr-AA manipulation, which are 23% and 37% higher than those of the unmanipulated alloy (295 MPa and 1.61%). The strengthening mechanisms of hypereutectic Al-Si alloys manipulated by in situ nanocrystals crystallized in the melt are mainly attributed to the fine grain strengthening effect and precipitation strengthening effect. The increase in plasticity is due to the refinement and morphology improvement of Si phases.http://www.sciencedirect.com/science/article/pii/S2238785419321106Amorphous alloysSolidification behaviorMicrostructure manipulationMechanical properties |