Microstructure regulation and mechanical properties of Ti-34Nb-4Zr-0.3O alloys by aging
In: Cailiao gongcheng, Jg. 52 (2024), Heft 4, S. 102-109
Online
academicJournal
Zugriff:
Metastable β type Ti-34Nb-4Zr-0.3O(mass fraction/%)alloy (TNZO) was prepared by vacuum arc melting, single-phase hot forging and cold rolling. The cold-rolled TNZO alloys were aged at low-temperature of 250 ℃ and 300 ℃ in order to reveal the effect of aging temperature and time on the precipitation behavior of ω phase and the mechanical properties of the alloys. The results show that ω phase precipitates in nanometer size as a result of low temperature aging which leads to the increase of strength and elastic modulus of the alloys. ω phase is easy to coarsen and agglomerate when the alloy is aged at 300 ℃, which results in the rapid drop of the elongation and embrittlement of the alloy. Short time aging at 250 ℃ could make the ω phase precipitated dispersedly with small volume fraction, enabling the alloy to have excellent comprehensive properties of high strength, low modulus, ultra-high elasticity and good plasticity and show a broad application prospect in the field of aerospace elastic titanium alloys and medical implant titanium alloys.
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Microstructure regulation and mechanical properties of Ti-34Nb-4Zr-0.3O alloys by aging
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Autor/in / Beteiligte Person: | Huan, QI ; Xiangwei, WU ; Hanya, ZHANG ; Feng, CHEN ; Yuhui, WANG ; Chunyang, WANG |
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Zeitschrift: | Cailiao gongcheng, Jg. 52 (2024), Heft 4, S. 102-109 |
Veröffentlichung: | Journal of Materials Engineering, 2024 |
Medientyp: | academicJournal |
ISSN: | 1001-4381 (print) |
DOI: | 10.11868/j.issn.1001-4381.2022.000917 |
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