TRIP Titanium Alloy Design

Meng, Fan Lai; Yan, Jerry; Olson, Gregory B.

doi:10.1051/matecconf/202032111070

Cited by 3 publications

(2 citation statements)

References 24 publications

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“…In general, metastable β decomposes in the α (hcp), the α′ martensite (hcp), the α″ martensite (orthorhombic), and the ω phases [ 27 , 28 , 29 , 30 ]. The transformation can be tailored by employing heat treatments, thereby controlling the content of β stabilizers in the β phase through the cooling conditions [ 64 , 65 , 66 ]. For niobium concentrations less than 13 wt.…”

Section: Resultsmentioning

confidence: 99%

Heat Treatments of Metastable β Titanium Alloy Ti-24Nb-4Zr-8Sn Processed by Laser Powder Bed Fusion

et al. 2022

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Titanium alloys, especially β alloys, are favorable as implant materials due to their promising combination of low Young’s modulus, high strength, corrosion resistance, and biocompatibility. In particular, the low Young’s moduli reduce the risk of stress shielding and implant loosening. The processing of Ti-24Nb-4Zr-8Sn through laser powder bed fusion is presented. The specimens were heat-treated, and the microstructure was investigated using X-ray diffraction, scanning electron microscopy, and transmission electron microscopy. The mechanical properties were determined by hardness and tensile tests. The microstructures reveal a mainly β microstructure with α″ formation for high cooling rates and α precipitates after moderate cooling rates or aging. The as-built and α″ phase containing conditions exhibit a hardness around 225 HV5, yield strengths (YS) from 340 to 490 MPa, ultimate tensile strengths (UTS) around 706 MPa, fracture elongations around 20%, and Young’s moduli about 50 GPa. The α precipitates containing conditions reveal a hardness around 297 HV5, YS around 812 MPa, UTS from 871 to 931 MPa, fracture elongations around 12%, and Young’s moduli about 75 GPa. Ti-24Nb-4Zr-8Sn exhibits, depending on the heat treatment, promising properties regarding the material behavior and the opportunity to tailor the mechanical performance as a low modulus, high strength implant material.

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Section: Resultsmentioning

confidence: 99%

Heat Treatments of Metastable β Titanium Alloy Ti-24Nb-4Zr-8Sn Processed by Laser Powder Bed Fusion

et al. 2022

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“…Thermo-calc software was used to study the reliability of CALPHAD predictions in multicomponent systems (Gorsse & Senkov, 2018). CALPHAD was also applied in the parametric design optimization of a transformation-induced plasticity of a titanium alloy (Meng, Yan, & Olson, 2020). Artificial neural networks method coupled with physics-based calculation was utilized to generate a design space of alloy compositions, among which one was investigated through a CALPHADbased software (Monthakab & Balikci, 2019).…”

Section: Introductionmentioning

confidence: 99%

A Multiparametric and Multicriteria Software to Evaluate the Design of Ultra-Hard Metal Alloys

Nonato¹,

Restivo²

2023

Open Science Research X

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Objective: Wear resistance is frequently required in products that demand a relatively long lifespan, e.g., cutting tools, bearings, bushings, sleeves, etc. In view of this, ultra-hard metal alloys (UHMAs) are often employed to withstand longer working cycles and last longer. In order to design UHMAs, one of the existing approaches is the parametric. However, each metal alloy design is based on a different set of parameters by researchers, what makes difficult to understand why that specific set of parameters was chosen, and which of them to select for a future design. Methods: Therefore, based on the parametric approach, in this paper we present a software developed by the authors, called DIAMOY 2.0, which employs the most commonly applied twenty parameters and five criteria in the alloy design process. DIAMOY 2.0 was coded in Microsoft Visual Basic 6.0® and turned into a Windows® application. Results: The software was validated through the comparison with two UHMAs with a maximum relative error of 1.923% for one UHMA, and 3.183% for the other UHMA. Conclusions: The main contributions of this software refer to: (a) the organization of the set of the most commonly reported parameters and criteria into a single application, which facilitates the design process evaluation; (b) operation in a faster manner to ease the decision making process; (c) portability, as it can be operated in any Windows®-based device.

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Corrosion Properties of Double-Walled TiO$$_2$$ Nanotubes Measured in 0.9$$\%$$ NaCl - Preliminary Results

Jędrzejewska

2021

Biocybernetics and Biomedical Engineering – Current Trends and Challenges

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TRIP Titanium Alloy Design

Cited by 3 publications

References 24 publications

Heat Treatments of Metastable β Titanium Alloy Ti-24Nb-4Zr-8Sn Processed by Laser Powder Bed Fusion

Heat Treatments of Metastable β Titanium Alloy Ti-24Nb-4Zr-8Sn Processed by Laser Powder Bed Fusion

A Multiparametric and Multicriteria Software to Evaluate the Design of Ultra-Hard Metal Alloys

Corrosion Properties of Double-Walled TiO$$_2$$ Nanotubes Measured in 0.9$$\%$$ NaCl - Preliminary Results

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