Characterising the Effects of Strain Rate, Crystallographic Texture and Direction of Loading on the Mechanical Behaviour of Ti-6Al-4V

Wielewski, Euan; Arthington, Matthew R.; Siviour, Clive R.; Petrinić, Nik

doi:10.1007/s40870-015-0040-4

Cited by 16 publications

(3 citation statements)

References 33 publications

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“…For Transactions of the ASME example, the cooling and solidification rates during the EBM process affect the microstructure of the metal, but the thermal gradient of a given part being fabricated is dependent on other factors such as its morphology. In addition, manufacturing practices and settings such as beam power and speed may have more direct effects [14,15]. In that context, the variability shown in the measured mechanical properties are the result from variations during the manufacturing process affecting the microstructure.…”

Section: Discussionmentioning

confidence: 99%

Mechanical Behavior of Differently Oriented Electron Beam Melting Ti–6Al–4V Components Using Digital Image Correlation

Arrieta

Haque

Mireles

et al. 2018

Journal of Engineering Materials and Technology

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Mechanical properties of additive manufactured metal components can be affected by the orientation of the layer deposition. In this investigation, Ti–6Al–4V cylindrical specimens were fabricated by electron beam melting (EBM) at four different build angles (0 deg, 30 deg, 60 deg, and 90 deg) and tested as per ASTM E8 Standard Test Methods for Tension Testing of Metallic Materials. With the layer-by-layer fabrication suggesting granting anisotropic properties to the builds, strain fields were recorded by digital image correlation (DIC) in the search for shear effects under uniaxial loads. For the validation of this measuring method, axial strains were measured with a clip extensometer and a virtual extensometer, simultaneously. Failure analysis of the specimens at different orientations was conducted to evidence the recording of shear strain fields. The failure analysis included fractography, optical micrographs of the microstructure distribution, and failure profiles displaying different failure features associated with the layering orientation. Additionally, an experimental study case of how the failure mode of components can potentially be designed from the fabrication process is presented. At the end, remarks about the shear effects found, and an insight of the possibility of designing components by failure for safer structures are discussed.

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Section: Discussionmentioning

confidence: 99%

Mechanical Behavior of Differently Oriented Electron Beam Melting Ti–6Al–4V Components Using Digital Image Correlation

Arrieta

Haque

Mireles

et al. 2018

Journal of Engineering Materials and Technology

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“…More studies reporting the strain rate sensitivity of titanium alloy Ti-6Al-4V can be found in the literature. [20][21][22] From the above studies, it can be stated that the FMLs consisting of layers of GFRP and titanium alloy Ti-6Al-4V sheets that are rate sensitive, will be having a more predominant strain rate effect on their behavior.…”

Section: Introductionmentioning

confidence: 99%

Effect of high strain rate on tensile response and failure analysis of titanium/glass fiber reinforced polymer composites

Sharma

Velmurugan

2021

Journal of Composite Materials

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The high strain rate tensile response of titanium-based fiber metal laminates (FMLs), consisting of layers of titanium Ti-6Al-4V alloy sheet and glass fiber reinforced composites, is examined. A hand layup method is used to fabricate four different layups of FMLs, exhibiting the same thickness of the total metal layer. A split Hopkinson tensile bar apparatus is used to load titanium and composite under a high strain rate to obtain baseline data. High-speed digital image correlation is used to measure the strain directly on the specimen gage region. The elastic-plastic response of FMLs up to maximum stress is predicted by the classical laminated plate model and orthotropic plasticity model. This is followed by a behavior considering the mechanics of delamination. The results show that the layup sequence of titanium-based FMLs considerably affects the failure behavior of composites following ultimate strength. This strength increases at high strain rates and seems higher for titanium-based FMLs than aluminium-based FMLs. This is primarily caused by the rate-dependent response of the titanium and composite. The failure strain of glass fiber reinforced epoxy (GFRP) constituent, failure strain, and toughness of FMLs are affected by isolating composite layers by metallic layers within FMLs and are found to be rate sensitive. Isolation of composite layers from one another by metallic layers results in more progressive failure of FMLs. The proposed models are validated with experiments of aluminium-based FMLs available in the literature.

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“…Compared with other methods, high speed micro-milling process receives more attention due to its high machining accuracy, processing efficiency, simple preparation, relatively low cost and fewer limitations on processing materials [9].…”

Section: Introductionmentioning

confidence: 99%

Contact angle hysteresis analysis on superhydrophobic surface based on the design of channel and pillar models

Shi

Zhang

2017

Materials & Design

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Characterising the Effects of Strain Rate, Crystallographic Texture and Direction of Loading on the Mechanical Behaviour of Ti-6Al-4V

Cited by 16 publications

References 33 publications

Mechanical Behavior of Differently Oriented Electron Beam Melting Ti–6Al–4V Components Using Digital Image Correlation

Mechanical Behavior of Differently Oriented Electron Beam Melting Ti–6Al–4V Components Using Digital Image Correlation

Effect of high strain rate on tensile response and failure analysis of titanium/glass fiber reinforced polymer composites

Contact angle hysteresis analysis on superhydrophobic surface based on the design of channel and pillar models

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