| Autor: |
Bingjie Zhang, Tao Yang, Mingda Huang, Dong Wang, Qiaoyan Sun, Yunzhi Wang, Jun Sun |
| Jazyk: |
angličtina |
| Rok vydání: |
2019 |
| Předmět: |
|
| Zdroj: |
Journal of Materials Research and Technology, Vol 8, Iss 1, Pp 777-787 (2019) |
| Druh dokumentu: |
article |
| ISSN: |
2238-7854 |
| DOI: |
10.1016/j.jmrt.2018.06.006 |
| Popis: |
A strategy for the microstructural design to achieve a critical upper limit of uniform nano α precipitates by controlling the amount of dislocations in the pre-deformed matrix after short time aging treatment was proposed in Ti–10Mo–8V–1Fe–3.5Al (all in wt.%, TB3 alloy) β alloy. The optimal processes focused on the interaction of defects, mainly point defects and dislocations that are generated during cold rolling (CR). Texture evolution of α and β phases was also specified. Amount of nano-scaled α precipitates was characterized by the number density of precipitates observed by SEM, which is saturated at ∼204.1 μm−2. For the CR 20% sample, a good combination of tensile strength (∼1400 MPa) and elongation (∼12%) was achieved after secondary aging at 550 for 1 h, which provides an enlightenment for the re-engineering of traditional precipitate-hardening alloys. Keywords: β-Ti alloy, Short-time aging saturation, Uniform α precipitates, Mechanical properties |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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