Achieving Elinvar effect over a wide temperature range in an additively manufactured titanium alloy
| Autor: | Chengqian Lu, Delun Gong, Yandi Jia, Yuxiang Zhang, Yingying Shen, Wentao Hou, Na Ma, Zengqian Liu, Rui Yang, Yulin Hao |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2024 |
| Předmět: | |
| Zdroj: | Materials Research Letters, Vol 12, Iss 12, Pp 877-885 (2024) |
| Druh dokumentu: | article |
| ISSN: | 21663831 2166-3831 |
| DOI: | 10.1080/21663831.2024.2396030 |
| Popis: | Temperature-insensitive elastic modulus known as Elinvar effect is typically achievable in metastable titanium alloys only through thermomechanical processing. Here reports that a directly additively manufactured TiNb-based alloy exhibits Elinvar effect over a wide temperature range of 273 K. This is attributed to its α″+β dual-phase microstructure wherein both the elastic modulus and transition strain of the α″ phase increase monotonically with increasing temperature. The α″ phase was obtained by setting a base-plate temperature of 723 K to act as in-situ aging. This provides a new way to optimize mechanical and functional properties simultaneously by utilizing thermal fields of additive manufacturing. |
| Databáze: | Directory of Open Access Journals |
| Externí odkaz: |
|