Mechanical Properties and Fracture Behavior of a TC4 Titanium Alloy Sheet

Zhao, Zeling; Ji, Hongchao; Zhong, Yingzhuo; Han, Chun; Tang, Xuefeng

doi:10.3390/ma15238589

Cited by 17 publications

(9 citation statements)

References 40 publications

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“…In the tensile tests, fractures typically occurred in regions with weaker microstructures, and the fractures can effectively reveal fracture mechanisms, modes, and causes in alloys. The fracture morphology of the tensile specimens was measured and analyzed to better investigate the impact of femtosecond laser irradiation on the mechanical properties of TC4 [ 8 ].…”

Section: Resultsmentioning

confidence: 99%

“…With research on TC4 deepening in recent years, researchers have systematically studied its mechanical properties and fracture behavior. The Johnson–Cook failure model, widely applied in the field of metal impact fractures, was utilized by Zeling Zhao [ 8 ] to investigate the deformation mechanism of TC4 alloys; through a finite element simulation of the specimen, the entire process from crack initiation to fracture was obtained. A crack in a smooth specimen is first generated in the center.…”

Section: Introductionmentioning

confidence: 99%

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Influence of Femtosecond Laser Surface Modification on Tensile Properties of Titanium Alloy

Zhou,

Nie,

Che

et al. 2024

Micromachines

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Titanium alloy components often experience damage from impact loads during usage, which makes improving the mechanical properties of TC4 titanium alloys crucial. This paper investigates the influence of laser scanning irradiation on the tensile properties of thin titanium alloy sheets. Results indicate that the tensile strength of thin titanium alloy sheets exhibits a trend of initial increase followed by a decrease. Different levels of enhancement are observed in the elongation at break of a cross-section. Optimal improvement in the elongation at break is achieved when the laser fluence is around 8 J/cm2, while the maximum increase in tensile strength occurs at approximately 10 J/cm2. Using femtosecond laser surface irradiation, this study compares the maximum enhancement in the tensile strength of titanium alloy base materials, which is approximately 8.54%, and the maximum increase in elongation at break, which reaches 25.61%. In addition, the results verify that cracks in tensile fractures of TC4 start from the middle, while laser-induced fracture cracks occur from both ends.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Influence of Femtosecond Laser Surface Modification on Tensile Properties of Titanium Alloy

Zhou,

Nie,

Che

et al. 2024

Micromachines

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“…The material is TC4, a titanium alloy material that meets medical requirements, and the porous structure is processed and formed integrally with the substrate using the same process, avoiding the risk of dislodgement due to poor bonding in the traditional spraying process. TC4 titanium alloy has excellent comprehensive properties, is lightweight, has high strength, and good corrosion resistance and is widely used in aerospace, military defense, and other elds [11]. The surface of the endplate has three inverted tooth structures, which ensures the stability of the prosthesis.…”

Section: Discussionmentioning

confidence: 99%

3D printed anatomical bionic artificial cervical disc replacement for single-level cervical spondylosis: a cohort study

Xu,

Zhang,

et al. 2023

Preprint

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Background: Cervical disc replacement (CDR) is considered to be an effective alternative treatment to anterior cervical discectomy and fusion (ACDF). However, the use of most artificial disc prostheses can lead to complications due to the high morphological and dimensional mismatch with the human neck anatomy. Objective: By comparing the clinical efficacy of the new 3D printed artificial cervical disc with ACDF in treating cervical spondylosis, to study the clinical value of the artificial disc with the appropriate morphological and dimensional. Methods: This study was a retrospective analysis of 58 patients with single-segment cervical spondylosis who met the inclusion criteria between August 2019 and July 2022 at XXXX Hospital. The patients were divided into two groups based on the surgical method used: 38 cases in the ACDF group and 20 cases in the CDR group. The patients' general information, including operation time, intraoperative blood loss, and hospital stay, were recorded. The clinical effect was evaluated using the visual analog scale (VAS), Japanese Orthopedic Association (JOA) score, and Neck Disability Index (NDI). The radiological effect was evaluated using the range of movement (ROM) by the shell angle. Complications, including dysphagia, heterotopic ossification, and adjacent segment degeneration (ASD), were also recorded. Results: The average follow-up time for the ACDF and CDR groups was 18.18 ± 2.19 and 17.50 ± 7.18 months, respectively (P =0.682). The surgical time was 134.76 ± 39.35, 144.50 ± 35.69 (P =0.359), and the hospital stay was 6.74 ± 1.63 and 7.00 ± 2.00 days (P =0.593). In terms of clinical efficacy, the two groups showed significant clinical efficacy, and there was no difference in VAS (P =0.046), JOA (P =0.046), and NDI (P =0.046) scores at each time point. However, the blood loss of the two groups was 170.00 ± 110.50ml and 118.42 ± 80.15ml, and the CDR group was significantly higher than the ACDF group (P=0.046). In terms of imaging, the postoperative ROM in the ACDF group was lower than that in the CDR group (P=0.005). In terms of complications, a few patients in both groups experienced swallowing discomfort after surgery and recovered within 3 months. One case of ASD occurred in the ACDF group, and no ectopic ossification was observed in either group. Conclusion: The new 3D-printed artificial disc for treating single-segment cervical spondylosis has shown proven clinical efficacy, and it maintains better ROM compared to ACDF, although it may have more intraoperative blood loss.

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“…Equation ( 4) could be transformed into Equation (10) to determine the parameter C. The strain rate sensitivity coefficient C at specific temperatures and strain rates could be calculated with the specific temperature, strain rate, and the fixed equivalent plastic strain p ε = 0.1 as summarized in Table 4. The parameter C could be modified as a function of temperature and strain rate as shown in Equation (11).…”

Section: Establishment Of Basic J-c Constitutive Modelmentioning

confidence: 99%

Dynamic Mechanical Properties and Modified Material Constitutive Model for Hot Forged Ti2AlNb over Wide Ranges of Temperature and Strain Rate

Li,

Pan,

Zhang

et al. 2024

Materials

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In this paper, the stress–strain curves of Ti2AlNb are established based on uniaxial impact tests over wide ranges of temperature and strain rate. The Ti2AlNb exhibited the work hardening effect but did not show an obvious yield stage during a quasi-static compression test. In the SHPB test, an obvious temperature softening effect was found, the strain rate strengthening effect was detected when the strain rate was 4000–8000 s−1, and the strain rate softening effect was detected in the range of 8000–12,000 s−1. A function describing the effect of strain rate on the strain rate strengthening parameters under various temperatures was proposed to modify the basic J-C constitutive model. The relative errors between the experimental measured value and predicted values in various experimental conditions with a modified J-C model were less than 5.0%. The results verified that the modified J-C model could accurately describe the dynamic mechanical properties of Ti2AlNb at high temperatures and strain rates. The research could help to illustrate the cutting mechanism and finite element simulation of Ti2AlNb alloy.

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Mechanical Properties and Fracture Behavior of a TC4 Titanium Alloy Sheet

Cited by 17 publications

References 40 publications

Influence of Femtosecond Laser Surface Modification on Tensile Properties of Titanium Alloy

Influence of Femtosecond Laser Surface Modification on Tensile Properties of Titanium Alloy

3D printed anatomical bionic artificial cervical disc replacement for single-level cervical spondylosis: a cohort study

Dynamic Mechanical Properties and Modified Material Constitutive Model for Hot Forged Ti2AlNb over Wide Ranges of Temperature and Strain Rate

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