Preparation of in-situ TiB2 reinforced aluminum matrix composites assisted by two steps of ultrasonic vibration
The TiB _2 /Al particle reinforced composites were prepared successfully through metal-salt reaction with different process conditions (mechanical stirring, one-stage and two-stages of ultrasonic vibration). It was usually taken more than 60 min to complete metal-salt reaction under mechanical stirr...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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IOP Publishing
2021-01-01
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| Series: | Materials Research Express |
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| Online Access: | https://doi.org/10.1088/2053-1591/abea5a |
| _version_ | 1797746759631372288 |
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| author | Zhengcai Liu Tao Zhu Yiwang Jia Dongfu Song Nan Zhou Kaihong Zheng |
| author_facet | Zhengcai Liu Tao Zhu Yiwang Jia Dongfu Song Nan Zhou Kaihong Zheng |
| author_sort | Zhengcai Liu |
| collection | DOAJ |
| description | The TiB _2 /Al particle reinforced composites were prepared successfully through metal-salt reaction with different process conditions (mechanical stirring, one-stage and two-stages of ultrasonic vibration). It was usually taken more than 60 min to complete metal-salt reaction under mechanical stirring condition, lots of reinforcement agglomerations and residual intermediate such as Al _3 Ti was in the matrix. The reaction time was greatly shortened from 60 min to 5 min and particle agglomerations were eliminated successfully by the introduction of ultrasonic vibration at 850 °C. Through the introduction of ultrasonic vibration at 730 °C, not only most of the residual Al _3 Ti phase was broken or dissolved, but also the size of TiB _2 was refined. The composite prepared by two-stage ultrasonic vibration has the optimal improvements of yield strength and ultimate tensile strength, which increased by are 108% and 98% respectively, hardness increased 61.5%. When only introducing the first stage of UVT, the elongation decreased from 34% to 20% owning to lots of rod-like Al _3 Ti in the matrix, after the second stage of UVT, the elongation restored to 33%. The effects of ultrasonic vibration on phase transformation, microstructure, and mechanical properties were studied by x-ray diffraction (XRD), optical microscope (OM), scanning electron microscope (SEM) and Electron Backscattered Diffraction (EBSD). Moreover, the effects of Orowan strengthening, thermal expansion mismatch strengthening, and grain refinement strengthening on mechanical properties were also discussed. |
| first_indexed | 2024-03-12T15:41:28Z |
| format | Article |
| id | doaj.art-afd64a569c744e7ea8a8591266e706cc |
| institution | Directory Open Access Journal |
| issn | 2053-1591 |
| language | English |
| last_indexed | 2024-03-12T15:41:28Z |
| publishDate | 2021-01-01 |
| publisher | IOP Publishing |
| record_format | Article |
| series | Materials Research Express |
| spelling | doaj.art-afd64a569c744e7ea8a8591266e706cc2023-08-09T15:57:26ZengIOP PublishingMaterials Research Express2053-15912021-01-018404650610.1088/2053-1591/abea5aPreparation of in-situ TiB2 reinforced aluminum matrix composites assisted by two steps of ultrasonic vibrationZhengcai Liu0Tao Zhu1Yiwang Jia2https://orcid.org/0000-0003-0140-6152Dongfu Song3Nan Zhou4Kaihong Zheng5School of Materials and Metallurgy, Guizhou University , Guiyang, 550025, People’s Republic of China; Institute of Materials and Processing, Guangdong Academy of Science, Guangzhou 510650, People’s Republic of China; Guangdong Provincial Key Laboratory of Metal Toughening Technology and Application, Guangzhou 510650, People’s Republic of ChinaSchool of Materials and Metallurgy, Guizhou University , Guiyang, 550025, People’s Republic of ChinaInstitute of Materials and Processing, Guangdong Academy of Science, Guangzhou 510650, People’s Republic of China; Guangdong Provincial Key Laboratory of Metal Toughening Technology and Application, Guangzhou 510650, People’s Republic of ChinaInstitute of Materials and Processing, Guangdong Academy of Science, Guangzhou 510650, People’s Republic of China; Guangdong Provincial Key Laboratory of Metal Toughening Technology and Application, Guangzhou 510650, People’s Republic of ChinaInstitute of Materials and Processing, Guangdong Academy of Science, Guangzhou 510650, People’s Republic of China; Guangdong Provincial Key Laboratory of Metal Toughening Technology and Application, Guangzhou 510650, People’s Republic of ChinaInstitute of Materials and Processing, Guangdong Academy of Science, Guangzhou 510650, People’s Republic of China; Guangdong Provincial Key Laboratory of Metal Toughening Technology and Application, Guangzhou 510650, People’s Republic of ChinaThe TiB _2 /Al particle reinforced composites were prepared successfully through metal-salt reaction with different process conditions (mechanical stirring, one-stage and two-stages of ultrasonic vibration). It was usually taken more than 60 min to complete metal-salt reaction under mechanical stirring condition, lots of reinforcement agglomerations and residual intermediate such as Al _3 Ti was in the matrix. The reaction time was greatly shortened from 60 min to 5 min and particle agglomerations were eliminated successfully by the introduction of ultrasonic vibration at 850 °C. Through the introduction of ultrasonic vibration at 730 °C, not only most of the residual Al _3 Ti phase was broken or dissolved, but also the size of TiB _2 was refined. The composite prepared by two-stage ultrasonic vibration has the optimal improvements of yield strength and ultimate tensile strength, which increased by are 108% and 98% respectively, hardness increased 61.5%. When only introducing the first stage of UVT, the elongation decreased from 34% to 20% owning to lots of rod-like Al _3 Ti in the matrix, after the second stage of UVT, the elongation restored to 33%. The effects of ultrasonic vibration on phase transformation, microstructure, and mechanical properties were studied by x-ray diffraction (XRD), optical microscope (OM), scanning electron microscope (SEM) and Electron Backscattered Diffraction (EBSD). Moreover, the effects of Orowan strengthening, thermal expansion mismatch strengthening, and grain refinement strengthening on mechanical properties were also discussed.https://doi.org/10.1088/2053-1591/abea5acompositeultrasonic vibrationTiB2mechanical properties |
| spellingShingle | Zhengcai Liu Tao Zhu Yiwang Jia Dongfu Song Nan Zhou Kaihong Zheng Preparation of in-situ TiB2 reinforced aluminum matrix composites assisted by two steps of ultrasonic vibration Materials Research Express composite ultrasonic vibration TiB2 mechanical properties |
| title | Preparation of in-situ TiB2 reinforced aluminum matrix composites assisted by two steps of ultrasonic vibration |
| title_full | Preparation of in-situ TiB2 reinforced aluminum matrix composites assisted by two steps of ultrasonic vibration |
| title_fullStr | Preparation of in-situ TiB2 reinforced aluminum matrix composites assisted by two steps of ultrasonic vibration |
| title_full_unstemmed | Preparation of in-situ TiB2 reinforced aluminum matrix composites assisted by two steps of ultrasonic vibration |
| title_short | Preparation of in-situ TiB2 reinforced aluminum matrix composites assisted by two steps of ultrasonic vibration |
| title_sort | preparation of in situ tib2 reinforced aluminum matrix composites assisted by two steps of ultrasonic vibration |
| topic | composite ultrasonic vibration TiB2 mechanical properties |
| url | https://doi.org/10.1088/2053-1591/abea5a |
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