Enhancing strength and electrical conductivity of pure aluminum by microalloying with telluride
The effects of Te addition on the microstructure, strength and electrical conductivity of pure aluminum were investigated, for improving the strength and electrical conductivity of resulting alloys. It was found that the tensile strength and electrical conductivity of the studied alloys increased by...
| 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 |
| Subjects: | |
| Online Access: | https://doi.org/10.1088/2053-1591/ac1cac |
| _version_ | 1827869261909983232 |
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| author | Zhuang Du Jinwen Ye Lufei Yang Jiteng Zhang |
| author_facet | Zhuang Du Jinwen Ye Lufei Yang Jiteng Zhang |
| author_sort | Zhuang Du |
| collection | DOAJ |
| description | The effects of Te addition on the microstructure, strength and electrical conductivity of pure aluminum were investigated, for improving the strength and electrical conductivity of resulting alloys. It was found that the tensile strength and electrical conductivity of the studied alloys increased by 25.8% and 2.8%, respectively, compared with those for pure aluminum (58 MPa and 62.06% IACS), respectively, by adding 0.1 wt% Te. Several mechanisms may account for the observed improvement of the alloys’ strength and electrical conductivity. First, Te addition can refine the grain size of pure aluminum by introducing more nucleation sites and suppressing grain growth through boundary precipitation. Second, the precipitation morphology changes from fine-needle or sheet-like to ellipsoidal shapes, likely improving the alloys’ tensile properties. Finally, Te can purify the melts by forming Al-Te-Fe-Si intermetallics at the grain boundaries, likely reducing the lattice distortion and increasing the electrical conductivity. |
| first_indexed | 2024-03-12T15:43:28Z |
| format | Article |
| id | doaj.art-c500983ba50b4c51a05c022b1fb68bb3 |
| institution | Directory Open Access Journal |
| issn | 2053-1591 |
| language | English |
| last_indexed | 2024-03-12T15:43:28Z |
| publishDate | 2021-01-01 |
| publisher | IOP Publishing |
| record_format | Article |
| series | Materials Research Express |
| spelling | doaj.art-c500983ba50b4c51a05c022b1fb68bb32023-08-09T15:53:41ZengIOP PublishingMaterials Research Express2053-15912021-01-018808651110.1088/2053-1591/ac1cacEnhancing strength and electrical conductivity of pure aluminum by microalloying with tellurideZhuang Du0Jinwen Ye1https://orcid.org/0000-0002-0409-250XLufei Yang2Jiteng Zhang3Center for Rare Earth and Vanadium-titanium Based Materials, School of Materials Science and Engineering, Sichuan University , Chengdu, 610065, People’s Republic of ChinaCenter for Rare Earth and Vanadium-titanium Based Materials, School of Materials Science and Engineering, Sichuan University , Chengdu, 610065, People’s Republic of ChinaCenter for Rare Earth and Vanadium-titanium Based Materials, School of Materials Science and Engineering, Sichuan University , Chengdu, 610065, People’s Republic of ChinaCenter for Rare Earth and Vanadium-titanium Based Materials, School of Materials Science and Engineering, Sichuan University , Chengdu, 610065, People’s Republic of ChinaThe effects of Te addition on the microstructure, strength and electrical conductivity of pure aluminum were investigated, for improving the strength and electrical conductivity of resulting alloys. It was found that the tensile strength and electrical conductivity of the studied alloys increased by 25.8% and 2.8%, respectively, compared with those for pure aluminum (58 MPa and 62.06% IACS), respectively, by adding 0.1 wt% Te. Several mechanisms may account for the observed improvement of the alloys’ strength and electrical conductivity. First, Te addition can refine the grain size of pure aluminum by introducing more nucleation sites and suppressing grain growth through boundary precipitation. Second, the precipitation morphology changes from fine-needle or sheet-like to ellipsoidal shapes, likely improving the alloys’ tensile properties. Finally, Te can purify the melts by forming Al-Te-Fe-Si intermetallics at the grain boundaries, likely reducing the lattice distortion and increasing the electrical conductivity.https://doi.org/10.1088/2053-1591/ac1cacAl-Te alloysgrain refinementAl-Te-Fe-Si intermetallicsmechanical propertyelectrical conductivity |
| spellingShingle | Zhuang Du Jinwen Ye Lufei Yang Jiteng Zhang Enhancing strength and electrical conductivity of pure aluminum by microalloying with telluride Materials Research Express Al-Te alloys grain refinement Al-Te-Fe-Si intermetallics mechanical property electrical conductivity |
| title | Enhancing strength and electrical conductivity of pure aluminum by microalloying with telluride |
| title_full | Enhancing strength and electrical conductivity of pure aluminum by microalloying with telluride |
| title_fullStr | Enhancing strength and electrical conductivity of pure aluminum by microalloying with telluride |
| title_full_unstemmed | Enhancing strength and electrical conductivity of pure aluminum by microalloying with telluride |
| title_short | Enhancing strength and electrical conductivity of pure aluminum by microalloying with telluride |
| title_sort | enhancing strength and electrical conductivity of pure aluminum by microalloying with telluride |
| topic | Al-Te alloys grain refinement Al-Te-Fe-Si intermetallics mechanical property electrical conductivity |
| url | https://doi.org/10.1088/2053-1591/ac1cac |
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