Microstructure Evolution and Mechanical Properties of PM-Ti43Al9V0.3Y Alloy

Zhang, Dongdong; Liu, Na; Chen, Yuyong; Zhang, Guoqing; Tian, Jing; Kong, Fantao; Xiao, Shulong; Sun, Jianfei

doi:10.3390/ma13010198

Cited by 10 publications

(6 citation statements)

References 38 publications

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“…First, we compared the stress distribution between this novel plate with its screws and those conventional plates and screws. Stress distribution could imply the ability of plates or screws to resist the elastic deformation when subjected to force, as stress concentration is likely to cause plate or screw deformation or even breakage [24]. Whether it be under the force of 200 N, 400 N or 600 N, from the stress nephogram we could easily tell that the stress distribution of plate and screws in the NALGP group were more uniform and less concentrated, although there was higher stress on the plates and screws in the NALGP group compared with those in other groups.…”

Section: Discussionmentioning

confidence: 99%

Finite Element Analysis of a Novel Anatomical Locking Guide Plate for Anterior Column and Posterior Hemi-Transverse Acetabular Fractures

Deng

et al. 2021

J. Med. Biol. Eng.

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Purpose The increasing worldwide prevalence of anterior column-posterior hemi-transverse fracture (ACPHTF) brings formidable challenges to orthopaedic surgeons. Our newly-designed locking plate had previously demonstrated promising effects in ACPHTF, but evidence of their direct comparison with conventional internal fixations remains lacking. In this study, we aimed to compare our novel plate with the traditional devices via finite element analysis. Methods The ACPHTF model was created based on a 48-year-old volunteer’s CT data, and then fixed in three different internal fixations: an anterior column locking plate with posterior column screws, double column locking plates, and our novel anatomical locking plate. These models were next loaded with a downward vertical force of 200 N, 400 N and 600 N, and the stress peaks and displacements of three different sites were recorded and analyzed. Results We first tested the rigidity and found that our newly-designed locking plate as well as its matched screws had a greater stiffness especially when they were under a higher loading force of 600 N. Then we evaluated the displacements of fracture ends after applying these fixations. Both our novel plate and DLP showed significantly smaller displacement than LPPCS at the anterior column fracture line and the pubic branch fracture line, while our novel plate was not obviously inferior to DLP in terms of the displacement. Conclusion This novel plate demonstrates a distinct superiority in the stiffness over LPPCS and DLP and comparable displacements to DLP in ACPHTF, which suggests this novel anatomical locking guide plate should be taken into consideration in ACPHTF.

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Section: Discussionmentioning

confidence: 99%

Finite Element Analysis of a Novel Anatomical Locking Guide Plate for Anterior Column and Posterior Hemi-Transverse Acetabular Fractures

Deng

et al. 2021

J. Med. Biol. Eng.

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“…The accuracy of this MC analysis method has been researched and verified by our research group. 29 In this investigation, SiC was incorporated into a ceramic tool as a reinforcing phase in order to fabricate a novel type of self-lubricating ceramic tool. In the initial stage of this study, the influence of SiC particle size and content on the microstructure of self-lubricating composite ceramic tool materials was investigated.…”

Section: Monte Carlo Computationmentioning

confidence: 99%

Design, optimization, and verification of self‐lubricating ceramic tool microstructure by MC method

Zhu,

Zhang,

Chen

et al. 2024

Int J Applied Ceramic Tech

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The computer‐aided analysis of microstructure evolution during the sintering process of self‐lubricating ceramic tools can unveil the underlying sintering mechanism and optimize experimental parameters. In this study, a novel self‐lubricating ceramic tool material, Al2O3/SiC/h‐BN@Al2O3, was fabricated with Al2O3 as the matrix, SiC as the reinforcement phase, and h‐BN@Al2O3 as the solid lubricant. The Monte Carlo (MC) method was employed to construct a model of self‐lubricating ceramic tool material, consisting of Al2O3/SiC/h‐BN@Al2O3. Subsequently, the sintering process was analyzed to investigate the influence of particle size and content of reinforced SiC, as well as the content of coated solid lubricant h‐BN@Al2O3, sintering pressure, and temperature on the microstructure of the tool. Optimal composition and sintering parameters were determined: 3 vol% for SiC additive amount with a particle size of 0.05 μm; 5 vol% for h‐BN@Al2O3 additive amount; and an optimal sintering temperature at 1650°C. The development of self‐lubricating ceramic tool materials, Al2O3/SiC/h‐BN@Al2O3, was realized through the employment of the aforementioned parameters. Their mechanical properties and microstructure were comprehensively characterized. The bending strength, fracture toughness, and Vickers hardness of the experimentally‐prepared Al2O3/3 vol%SiC/5 vol%h‐BN@Al2O3 self‐lubricating ceramic tool material were determined to be 722.42 MPa, 6.5 MPa·m1/2, and 20.65 GPa, respectively.

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“…The step size applied for scanning in the EBSD test was 0.5 µm. The phase analysis of the initial material was mainly based on the backscattered mode of the scanning electron microscope and related literature [41]. The Ti43Al9V0.3Y alloy is mainly composed of the B2 phase (International Centre for Diffraction Data file numbers: and γ phase (International Centre for Diffraction Data file numbers: 05-0678).…”

Section: Materials and Experimental Proceduresmentioning

confidence: 99%

Hot Deformation Behavior and Microstructural Evolution of PM Ti43Al9V0.3Y with Fine Equiaxed γ and B2 Grain Microstructure

et al. 2020

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The hot deformation behavior and microstructure evolution of powder metallurgy (PM) Ti43Al9V0.3Y alloy with fine equiaxed γ and B2 grains were investigated using uniaxial hot compression. Its stress exponent and activation energy were 2.78 and 295.86 kJ/mol, respectively. The efficiency of power dissipation and instability parameters were evaluated, and processing maps at 50% and 80% strains were developed. It is demonstrated that the microstructure evolution was dependent on the temperature, strain, and strain rate. Both temperature and strain increases led to a decrease in the γ phase. Moreover, dynamic recrystallization (DRX) and grain boundary slip both played important roles in deformation. Reasonable parameters for secondary hot working included temperatures above 1100 °C but below 1200 °C with a strain rate of less than 1 s−1 at 80% strain. Suitable hot working parameters at 50% strain were 1150–1200 °C/≤1 s−1 and 1000–1200 °C/≤0.05 s−1.

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Microstructure Evolution and Mechanical Properties of PM-Ti43Al9V0.3Y Alloy

Cited by 10 publications

References 38 publications

Finite Element Analysis of a Novel Anatomical Locking Guide Plate for Anterior Column and Posterior Hemi-Transverse Acetabular Fractures

Finite Element Analysis of a Novel Anatomical Locking Guide Plate for Anterior Column and Posterior Hemi-Transverse Acetabular Fractures

Design, optimization, and verification of self‐lubricating ceramic tool microstructure by MC method

Hot Deformation Behavior and Microstructural Evolution of PM Ti43Al9V0.3Y with Fine Equiaxed γ and B2 Grain Microstructure

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