Influence of Ti/C mass ratio on the microstructure of Al-Ti-C master alloy and refinement effect on pure aluminum
Al-Ti-C master alloys with different Ti/C mass ratios were fabricated by self-propagating high-temperature synthesis (SHS).Besides, the effect of Ti/C mass ratio on the microstructure of SHS products and its effect on the grain refinement of industrial pure aluminum were also investigated. The resul...
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| Format: | Article |
| Language: | English |
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Elsevier
2021-04-01
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| Series: | Results in Physics |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2211379721001698 |
| _version_ | 1819279047950073856 |
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| author | Ying Dong MingJie Wang GuoWei Zhang Hong Xu |
| author_facet | Ying Dong MingJie Wang GuoWei Zhang Hong Xu |
| author_sort | Ying Dong |
| collection | DOAJ |
| description | Al-Ti-C master alloys with different Ti/C mass ratios were fabricated by self-propagating high-temperature synthesis (SHS).Besides, the effect of Ti/C mass ratio on the microstructure of SHS products and its effect on the grain refinement of industrial pure aluminum were also investigated. The results indicated that the product with Ti/C mass ratio of 4:1 is mainly composed of TiC particles with average size of 0.81 μm, and there is only a small amount of rod-shaped Al3Ti in the sample. When the Ti/C mass ratio is increased to more than 10:1, the rod-shaped Al3Ti is the main product in master alloy, which has the most obvious effect on the refinement of pure aluminum. When the addition amount is 3 wt%, the average grain size decreased to about 191 μm. The Al-Ti-C master alloy with Ti/C mass ratio of 4:1 has better anti refining degradation performance. When add 1.2% of the above master alloy to pure aluminum, holding time 60 min, the macroscopic grains of industrial pure aluminum is more uniform and finer, with an average grain size of 324 µm. The results indicate that the morphology of TiC particles in the product changes from regular sphere to polyhedron with the increases of mass ratio of Ti/C, the average size of TiC particles increases, and the rod-shaped Al3Ti changes from thick rod to thin rod, the average size of rod-shaped Al3Ti decreases. |
| first_indexed | 2024-12-24T00:21:42Z |
| format | Article |
| id | doaj.art-43349db94c73411692dd88463b4790f8 |
| institution | Directory Open Access Journal |
| issn | 2211-3797 |
| language | English |
| last_indexed | 2024-12-24T00:21:42Z |
| publishDate | 2021-04-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Results in Physics |
| spelling | doaj.art-43349db94c73411692dd88463b4790f82022-12-21T17:24:33ZengElsevierResults in Physics2211-37972021-04-0123104000Influence of Ti/C mass ratio on the microstructure of Al-Ti-C master alloy and refinement effect on pure aluminumYing Dong0MingJie Wang1GuoWei Zhang2Hong Xu3Corresponding author.; School of Materials Science and Engineering, North University of China, Shanxi, ChinaSchool of Materials Science and Engineering, North University of China, Shanxi, ChinaSchool of Materials Science and Engineering, North University of China, Shanxi, ChinaSchool of Materials Science and Engineering, North University of China, Shanxi, ChinaAl-Ti-C master alloys with different Ti/C mass ratios were fabricated by self-propagating high-temperature synthesis (SHS).Besides, the effect of Ti/C mass ratio on the microstructure of SHS products and its effect on the grain refinement of industrial pure aluminum were also investigated. The results indicated that the product with Ti/C mass ratio of 4:1 is mainly composed of TiC particles with average size of 0.81 μm, and there is only a small amount of rod-shaped Al3Ti in the sample. When the Ti/C mass ratio is increased to more than 10:1, the rod-shaped Al3Ti is the main product in master alloy, which has the most obvious effect on the refinement of pure aluminum. When the addition amount is 3 wt%, the average grain size decreased to about 191 μm. The Al-Ti-C master alloy with Ti/C mass ratio of 4:1 has better anti refining degradation performance. When add 1.2% of the above master alloy to pure aluminum, holding time 60 min, the macroscopic grains of industrial pure aluminum is more uniform and finer, with an average grain size of 324 µm. The results indicate that the morphology of TiC particles in the product changes from regular sphere to polyhedron with the increases of mass ratio of Ti/C, the average size of TiC particles increases, and the rod-shaped Al3Ti changes from thick rod to thin rod, the average size of rod-shaped Al3Ti decreases.http://www.sciencedirect.com/science/article/pii/S2211379721001698Ti/C mass ratioAl-Ti-C master alloyPure aluminumSelf-propagating High-temperature SynthesisGrain refinement |
| spellingShingle | Ying Dong MingJie Wang GuoWei Zhang Hong Xu Influence of Ti/C mass ratio on the microstructure of Al-Ti-C master alloy and refinement effect on pure aluminum Results in Physics Ti/C mass ratio Al-Ti-C master alloy Pure aluminum Self-propagating High-temperature Synthesis Grain refinement |
| title | Influence of Ti/C mass ratio on the microstructure of Al-Ti-C master alloy and refinement effect on pure aluminum |
| title_full | Influence of Ti/C mass ratio on the microstructure of Al-Ti-C master alloy and refinement effect on pure aluminum |
| title_fullStr | Influence of Ti/C mass ratio on the microstructure of Al-Ti-C master alloy and refinement effect on pure aluminum |
| title_full_unstemmed | Influence of Ti/C mass ratio on the microstructure of Al-Ti-C master alloy and refinement effect on pure aluminum |
| title_short | Influence of Ti/C mass ratio on the microstructure of Al-Ti-C master alloy and refinement effect on pure aluminum |
| title_sort | influence of ti c mass ratio on the microstructure of al ti c master alloy and refinement effect on pure aluminum |
| topic | Ti/C mass ratio Al-Ti-C master alloy Pure aluminum Self-propagating High-temperature Synthesis Grain refinement |
| url | http://www.sciencedirect.com/science/article/pii/S2211379721001698 |
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