| Temperature-independent resistivity in a Ti-Nb-based titanium alloy with a compositionally-modulated dual-phase microstructure | |
| Gong, D. L.1,2; Wang, H. L.3; Hao, S. H.4; Feng, Y. W.4; Liu, P.4; Wang, Y. X.4; Li, B.; Li, S. J.1; Du, K.4; Yang, R.1,4; Hao, Y. L.1,5 | |
| Corresponding Author | Hao, Y. L.(ylhao@imr.ac.cn) |
| 2023-09-10 | |
| Source Publication | JOURNAL OF ALLOYS AND COMPOUNDS
 |
| ISSN | 0925-8388 |
| Volume | 955Pages:5 |
| Abstract | Temperature-coefficient of resistivity (TCR) is positive for most metallic materials but negative for semiconductors. Since a Ti-Nb-based titanium alloy exhibits a negative TCR, this inspires us to tune its TCR from negative to positive by a decomposition-induced compositionally-modulated dual-phase microstructure. Here reports a continuously tunable TCR obtained by aging treatments at 723 K. The results demonstrate that a near-zero TCR over a wide temperature of 350 K is available via 0.5 h aging while its TCR varies almost linearly with the volume fraction of alpha" phase in the plate-like modulated microstructure. Aided by a mixture rule modeling, the tunable TCR can be quantitatively characterized by the beta + alpha" dual-phase compositionally-modulated microstructure induced by aging treatment. These findings provide a new avenue for exploring novel temperature-independent properties by tuning spinodal decomposition. (c) 2023 Elsevier B.V. All rights reserved. |
| Keyword | Electrical resistivity Titanium alloy Phase stability Phase decomposition |
| Funding Organization | National Natural Science Foundation of China ; Chinese Academy of Sciences |
| DOI | 10.1016/j.jallcom.2023.170267 |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | National Natural Science Foundation of China[51771209] ; National Natural Science Foundation of China[51901042] ; Chinese Academy of Sciences[QYZDJ-SSW-JSC031] |
| WOS Research Area | Chemistry ; Materials Science ; Metallurgy & Metallurgical Engineering |
| WOS Subject | Chemistry, Physical ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering |
| WOS ID | WOS:000990081600001 |
| Publisher | ELSEVIER SCIENCE SA |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/177972 |
| Collection | 中国科学院金属研究所 |
| Corresponding Author | Hao, Y. L. |
| Affiliation | 1.Chinese Acad Sci, Inst Met Res, Shi changxu Innovat Ctr Adv Mat, Shenyang 110016, Peoples R China 2.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China 3.Dongguan Univ Technol, Sch Mech Engn, Dongguan 523808, Peoples R China 4.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China 5.Chinese Acad Sci, Inst Met Res, Shi changxu Innovat Ctr Adv Mat, 72 Wenhua Rd, Shenyang 110016, Peoples R China |
| Recommended Citation GB/T 7714 | Gong, D. L.,Wang, H. L.,Hao, S. H.,et al. Temperature-independent resistivity in a Ti-Nb-based titanium alloy with a compositionally-modulated dual-phase microstructure[J]. JOURNAL OF ALLOYS AND COMPOUNDS,2023,955:5. |
| APA | Gong, D. L..,Wang, H. L..,Hao, S. H..,Feng, Y. W..,Liu, P..,...&Hao, Y. L..(2023).Temperature-independent resistivity in a Ti-Nb-based titanium alloy with a compositionally-modulated dual-phase microstructure.JOURNAL OF ALLOYS AND COMPOUNDS,955,5. |
| MLA | Gong, D. L.,et al."Temperature-independent resistivity in a Ti-Nb-based titanium alloy with a compositionally-modulated dual-phase microstructure".JOURNAL OF ALLOYS AND COMPOUNDS 955(2023):5. |
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