Effect of Mo, V and Zr on the microstructure and mechanical properties of Ti2AlNb alloys
Small button ingots of Ti2AlNb alloys with different contents of Mo, V and Zr were melted by vacuum non-consumable arc furnace. Due to the rapid cooling rate during melting process, only β grains without precipitation were observed in most of the button ingots and no regular phenomenon was found. Ho...
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| Format: | Article |
| Language: | English |
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EDP Sciences
2020-01-01
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| Series: | MATEC Web of Conferences |
| Subjects: | |
| Online Access: | https://www.matec-conferences.org/articles/matecconf/pdf/2020/17/matecconf_ti2019_08003.pdf |
| _version_ | 1818726205040361472 |
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| author | Du Yujun Liu Xianghong Li Jinshan Luo Wenzhong He Yongsheng Zhao Xiaohua Wang Kaixuan |
| author_facet | Du Yujun Liu Xianghong Li Jinshan Luo Wenzhong He Yongsheng Zhao Xiaohua Wang Kaixuan |
| author_sort | Du Yujun |
| collection | DOAJ |
| description | Small button ingots of Ti2AlNb alloys with different contents of Mo, V and Zr were melted by vacuum non-consumable arc furnace. Due to the rapid cooling rate during melting process, only β grains without precipitation were observed in most of the button ingots and no regular phenomenon was found. However, when the samples were heated to β phase region and then furnace cooled to room temperate, different morphologies and quantities of primary α phase and second O phase formed from the β grains of different samples. It is suggested that the morphology of α phase was changed from lamellar to quadrilateral with increasing V and the lath O increased with increasing Zr. Besides, the residual β/B2 phase increased with increasing Mo and V. The EDS results showed that Al and Zr were enriched in α phase whereas Nb, Mo and V were enriched in β/B2 phase. The micro-hardness of these samples before and after heat treatment was detected and the micro-hardness increased with increasing Zr and decreasing Mo and V. |
| first_indexed | 2024-12-17T21:54:30Z |
| format | Article |
| id | doaj.art-c7c0e8c139564b80921047af78c5d344 |
| institution | Directory Open Access Journal |
| issn | 2261-236X |
| language | English |
| last_indexed | 2024-12-17T21:54:30Z |
| publishDate | 2020-01-01 |
| publisher | EDP Sciences |
| record_format | Article |
| series | MATEC Web of Conferences |
| spelling | doaj.art-c7c0e8c139564b80921047af78c5d3442022-12-21T21:31:10ZengEDP SciencesMATEC Web of Conferences2261-236X2020-01-013210800310.1051/matecconf/202032108003matecconf_ti2019_08003Effect of Mo, V and Zr on the microstructure and mechanical properties of Ti2AlNb alloysDu YujunLiu Xianghong0Li Jinshan1Luo Wenzhong2He YongshengZhao Xiaohua3Wang Kaixuan4Western Superconducting Technologies Co., LtdState Key Laboratory of Solidification Processing, Northwestern Polytechnical UniversityWestern Superconducting Technologies Co., LtdWestern Superconducting Technologies Co., LtdWestern Superconducting Technologies Co., LtdSmall button ingots of Ti2AlNb alloys with different contents of Mo, V and Zr were melted by vacuum non-consumable arc furnace. Due to the rapid cooling rate during melting process, only β grains without precipitation were observed in most of the button ingots and no regular phenomenon was found. However, when the samples were heated to β phase region and then furnace cooled to room temperate, different morphologies and quantities of primary α phase and second O phase formed from the β grains of different samples. It is suggested that the morphology of α phase was changed from lamellar to quadrilateral with increasing V and the lath O increased with increasing Zr. Besides, the residual β/B2 phase increased with increasing Mo and V. The EDS results showed that Al and Zr were enriched in α phase whereas Nb, Mo and V were enriched in β/B2 phase. The micro-hardness of these samples before and after heat treatment was detected and the micro-hardness increased with increasing Zr and decreasing Mo and V.https://www.matec-conferences.org/articles/matecconf/pdf/2020/17/matecconf_ti2019_08003.pdfti2alnb alloysheat treatmentmicrostructurehardness |
| spellingShingle | Du Yujun Liu Xianghong Li Jinshan Luo Wenzhong He Yongsheng Zhao Xiaohua Wang Kaixuan Effect of Mo, V and Zr on the microstructure and mechanical properties of Ti2AlNb alloys MATEC Web of Conferences ti2alnb alloys heat treatment microstructure hardness |
| title | Effect of Mo, V and Zr on the microstructure and mechanical properties of Ti2AlNb alloys |
| title_full | Effect of Mo, V and Zr on the microstructure and mechanical properties of Ti2AlNb alloys |
| title_fullStr | Effect of Mo, V and Zr on the microstructure and mechanical properties of Ti2AlNb alloys |
| title_full_unstemmed | Effect of Mo, V and Zr on the microstructure and mechanical properties of Ti2AlNb alloys |
| title_short | Effect of Mo, V and Zr on the microstructure and mechanical properties of Ti2AlNb alloys |
| title_sort | effect of mo v and zr on the microstructure and mechanical properties of ti2alnb alloys |
| topic | ti2alnb alloys heat treatment microstructure hardness |
| url | https://www.matec-conferences.org/articles/matecconf/pdf/2020/17/matecconf_ti2019_08003.pdf |
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