Effect of Annealing and Cold Work on Mechanical Properties of Beta III Titanium

Cai, Song; Bailey, David M.; Kay, L.E.

doi:10.1007/s11665-012-0302-4

Cited by 10 publications

(1 citation statement)

References 21 publications

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“…Microstructure for Solution-Treated, One-Stage-Aged, and Two-Stage-Aged Specimens Figure 1 displays OM and SEM images for Ti-B12 alloy subjected to solution-treated, one-stage aging, and two-stage aging treatments. Based on previous investigations (Rack et al, 1970;Laheurte et al, 2006;Cai et al, 2012Cai et al, , 2013, the Ti-B12 alloy subjected to an appropriate solution treatment in conjunction with aging treatment could achieve outstanding comprehensive mechanical properties. Therefore, in this work, based on β transus temperature (T β = 760 • C) measured using the conventional metallographic procedure, the solution heat treatment is determined to be 790 • C/h and air cooling (AC).…”

Section: Resultsmentioning

confidence: 99%

Influence of Isothermal ω Transitional Phase-Assisted Phase Transition From β to α on Room-Temperature Mechanical Performance of a Meta-Stable β Titanium Alloy Ti−10Mo−6Zr−4Sn−3Nb (Ti-B12) for Medical Application

Cheng

et al. 2021

Front. Bioeng. Biotechnol.

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The microstructural evolution and tensile performance of a meta-stable β-type biomedical Ti−10Mo−6Zr−4Sn−3Nb (Ti-B12) alloy subjected to one-stage aging (OSA) and two-stage aging (TSA) are investigated in this work. The OSA treatment is performed at 510°C for 8 h. The TSA treatments are composed of low-temperature aging and high-temperature aging. In the first step, low-temperature aging is conducted at 325°C for 2 h. In the second step, the aging temperature is the same as that in the OSA. The result of the microstructure evolution shows that the precipitated secondary phase after aging is mainly influenced by the process of phase transition. There is a marked difference in the microstructure of the Ti-B12 alloy subjected to the OSA and TSA treatments. The needle-shaped α phases are precipitated in the parent β phase after the OSA treatment. Conversely, the short shuttle-like α phases precipitated after the TSA treatment are formed in the β matrix with the aid of the role of the isothermal ω transitional phase-assisted phase transition. The electron backscattered diffraction results indicate that the crystallographic orientation relationship of the α phases precipitated during the TSA treatment is basically analogous to those in the OSA treatment. The relatively higher tensile strength of 1,275 MPa is achieved by strengthening the effect of the short shuttle-like α precipitation with a size of 0.123 μm in length during the TSA treatment, associating with a suitable elongation of 12% at room temperature simultaneously. The fracture surfaces of the samples after the OSA and TSA treatments indicate that preventing the coarsening of the α layers in the grain boundaries is favorable for the enhancement of strength of Ti-B12 at room temperature. MTT test was carried out to evaluate the acute cytotoxicity and biocompatibility of the implanted material using L929 cells. The relative proliferation rates of cytotoxicity levels 0, 1, 2, 3, and 4 are ≥100, 80–99, 50–79, 30–49, and 0–29%, respectively. The cytotoxicity of the Ti-B12 alloy is slightly better than that of the Ti−6Al−4V alloy, which can meet the requirements of medical materials for biomedical materials.

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Section: Resultsmentioning

confidence: 99%

Influence of Isothermal ω Transitional Phase-Assisted Phase Transition From β to α on Room-Temperature Mechanical Performance of a Meta-Stable β Titanium Alloy Ti−10Mo−6Zr−4Sn−3Nb (Ti-B12) for Medical Application

Cheng

et al. 2021

Front. Bioeng. Biotechnol.

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Small Punch Test of U-Shaped Notch of TC4 Titanium Alloy and Its Numerical Simulation

Zhao

Zhang

2013

J. of Materi Eng and Perform

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An Investigation of Energy Dissipation in Beta III Titanium Alloy

Romanò,

Di Giuseppe,

Lazzari

et al. 2024

JOM

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This work investigates the effects of a supertransus annealing treatment, followed by plastic deformation, on the damping properties of a Ti-11.5Mo-6Zr-4.5Sn alloy. In our study, no evidence of α″-phase was found. A heat treatment at 800°C for 180 min, followed by 16% tensile plastic deformation, successfully increased the energy dissipation of the alloy, with an increase up to 76% in quasi-static hysteresis, and up to 200% in dynamic damping factor. The results of metallographic analysis, mechanical tests, and X-ray powder diffraction suggest that this increase in damping capacity may be caused by reversible twinning, and not necessarily by stress-induced α'' martensite.

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Effect of Annealing and Cold Work on Mechanical Properties of Beta III Titanium

Cited by 10 publications

References 21 publications

Influence of Isothermal ω Transitional Phase-Assisted Phase Transition From β to α on Room-Temperature Mechanical Performance of a Meta-Stable β Titanium Alloy Ti−10Mo−6Zr−4Sn−3Nb (Ti-B12) for Medical Application

Influence of Isothermal ω Transitional Phase-Assisted Phase Transition From β to α on Room-Temperature Mechanical Performance of a Meta-Stable β Titanium Alloy Ti−10Mo−6Zr−4Sn−3Nb (Ti-B12) for Medical Application

Small Punch Test of U-Shaped Notch of TC4 Titanium Alloy and Its Numerical Simulation

An Investigation of Energy Dissipation in Beta III Titanium Alloy

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