Room‐temperature spinnability and strength–ductility synergy of thin‐walled Ti‐3Al‐4Mo‐4V‐1Nb‐1Sn alloy tube
摘要 钛合金因其密排六方结构滑移系有限而难以变形, 常采用热旋压工艺而非室温旋压进行加工。本研究成功实现了新型高强度钛合金的室温旋压成形, 探索了其室温可旋性及优异的强塑性协同机制。多重滑移系的激活与应变诱导位错重排促进了β相动态再结晶及片层α相球化。位错动力学作为塑性变形协调与晶粒细化的关键媒介, 不仅通过分散旋压变形能和激活大量 < c + a > 滑移提升可旋性, 更促进了晶粒纳米化, 形成α/β纤维叠层结构及近基面{0002} α 织构。该结构与织构协同实现了纳米晶强化、位错强化、裂纹有效偏转及滑移系激活, 从而获得卓越的强塑性匹配。此项工作拓展了高性能室温旋压钛合金管材在航空航天与军工领域的应用潜力, 为节能制造提供新选择.
Authors
- Yuanfei Han (ORCID: https://orcid.org/0000-0002-0147-676X)
- Jianwen Le (ORCID: https://orcid.org/0000-0002-8017-2579)
- Chun‐Yu Shen
- Yong-Qiang Ye
- Jiaming Zhang (ORCID: https://orcid.org/0000-0002-7896-7321)
- Fenghua Wang (ORCID: https://orcid.org/0000-0002-2443-8360)
- Jianli Zhang
- Fu Chen (ORCID: https://orcid.org/0000-0002-0099-7897)
- Weijie Lü (ORCID: https://orcid.org/0000-0002-7505-7090)
- Yimin Zhuo
Institutions
- Shanghai University (CN)
- Shanghai Jiao Tong University (CN)
- Intelligent Health (United Kingdom) (GB)
Publication Details
- Journal
- Rare Metals
- Published
- 2025-11-07
- DOI
- https://doi.org/10.1007/s12598-025-03656-6
- Citations
- 1
- Primary Topic
- Titanium Alloys Microstructure and Properties
- Type
- article
- Field-Weighted Citation Impact
- 0.52