Effect of the hatching strategies on mechanical properties and microstructure of SEBM manufactured Ti-6Al-4V specimens

Popov, V. V.; Katz‐Demyanetz, Alexander; Kovalevsky, A. A.; Biletskiy, R.; Strokin, Evgeny; Garkun, Andrey; Bamberger, Μ.

doi:10.22226/2410-3535-2018-4-468-472

Cited by 10 publications

(3 citation statements)

References 11 publications

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“…The specimens for the research were manufactured on Arcam A2X EBM machine located at Israel Institute of Metals (Haifa, Israel). The commercial Arcam's gas atomized Ti-6Al-4V powder was utilized as a raw material for the electron beam melting (EBM), which was conducted in vacuum with the standard layer thickness of 50 µm and using Arcam default parameters for Ti-6Al-4V [20,21].…”

Section: Methodsmentioning

confidence: 99%

The Spectrum of Crystallographic Misorientations of Intercrystalline Boundaries for BCC-HCP Phase Transformation in Additively Manufactured Ti-6Al-4V

Редикульцев

Stepanov

Лобанов

2021

DDF

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Electron backscatter diffraction is a modern experimental method for local structure and texture investigation, which makes it possible to establish the presence and types of the various boundaries between the elements of the mesostructure such as low or high angle, special and interphase boundaries. Moreover, this technique can demonstrate the migration of boundaries during structural and phase transformations. This study estimated the possible spectrum of crystallographic misorientations of intercrystalline boundaries in additively manufactured titanium alloy Ti-6Al-4V using orientation microscopy and crystallographic calculations based on Burgers orientation relationship during β→α-transformation. The study has established that the boundaries between grains of α-phase are characterized by the misorientation angles of 11±2 °, 61±5 °, 89±3 °. The majority of high-angle boundaries are characterized by misorientation angles in the range of 57-65 °. The study also ascertained that the experimental spectrum of intercrystalline boundaries in the α-phase reveals the displacive nature of β→α-transformation in titanium alloys.

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Section: Methodsmentioning

confidence: 99%

The Spectrum of Crystallographic Misorientations of Intercrystalline Boundaries for BCC-HCP Phase Transformation in Additively Manufactured Ti-6Al-4V

Редикульцев

Stepanov

Лобанов

2021

DDF

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“…This implies that the layer thickness minimizes the hardness and mechanical properties of the built components. A better quality output is achieved by optimizing the process parameters [108].…”

Section: Electron Beam Additive Manufacturingmentioning

confidence: 99%

Conventional and Additively Manufactured Stainless Steels: A Review

Michla

Rajini

Krishnasamy

et al. 2021

Trans Indian Inst Met

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For the last three decades, enormous manufacturing processes have been widely employed in the field of transportation (aviation, automobile and marine) as well as various industrial sectors. Among the invented techniques, conventional manufacturing plays a versatile and cost effective role, but additive manufacturing (AM) possesses a more significant advantage of handling complicated parts or complex geometrical structures. The conventional processes were used from ancient times until the development of other advanced techniques. In recent development of technology, AM technology has shown a tremendous change in the manufacturing field. The process of development in AM began with polymers, then to composites and advanced to nanocomposites, continuously. AM provides a waste-free production management system with enhanced processes. Therefore, this detailed and compendious review describes the different stainless steels fabricated through conventional and AM techniques. It is evident that AM proves better than other several conventional techniques, by three dimensional (3D) printing of quality and complex stainless steels components that are impossible to manufacture through other methods. Notwithstanding, there still need of much efforts to improve AM technique by reducing the manufacturing cost, supporting mass production and printing large stainless steel components.With an increase in invention of various efficient state-of-the-art engineering software, robots in manufacturing, artificial intelligence and smart manufacturing, the aforementioned drawbacks of AM technique/3D printing of various stainless steel structures will be soon eradicated.

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“…Beneficial properties of Titanium alloys for aerospace to large extent defined these alloys to be one of the primary targets for PB-AM material development. In PB-AM of Titanium alloys the phase formation and mechanical properties can be controlled by process parameters optimization [7,8,10,63]. Additive manufacturing of Tialloys has significant advantages comparing to traditional manufacturing, because of low castability and challenging machining of these alloys.…”

Section: Titanium Alloysmentioning

confidence: 99%

Powder-bed additive manufacturing for aerospace application: Techniques, metallic and metal/ceramic composite materials and trends

et al. 2019

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The current paper is devoted to classification of powder-bed additive manufacturing (PB-AM) techniques and description of specific features, advantages and limitation of different PB-AM techniques in aerospace applications. The common principle of “powder-bed” means that the used feedstock material is a powder, which forms “bed-like” platform of homogeneous layer that is fused according to cross-section of the manufactured object. After that, a new powder layer is distributed with the same thickness and the “printing” process continues. This approach is used in selective laser sintering/melting process, electron beam melting, and binder jetting printing. Additionally, relevant issues related to powder raw materials (metals, ceramics, multi-material composites, etc.) and their impact on the properties of as-manufactured components are discussed. Special attention is paid to discussion on additive manufacturing (AM) of aerospace critical parts made of Titanium alloys, Nickel-based superalloys, metal matrix composites (MMCs), ceramic matrix composites (CMCs) and high entropy alloys. Additional discussion is related to the quality control of the PB-AM materials, and to the prospects of new approaches in material development for PB-AM aiming at aerospace applications.

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Effect of the hatching strategies on mechanical properties and microstructure of SEBM manufactured Ti-6Al-4V specimens

Cited by 10 publications

References 11 publications

The Spectrum of Crystallographic Misorientations of Intercrystalline Boundaries for BCC-HCP Phase Transformation in Additively Manufactured Ti-6Al-4V

The Spectrum of Crystallographic Misorientations of Intercrystalline Boundaries for BCC-HCP Phase Transformation in Additively Manufactured Ti-6Al-4V

Conventional and Additively Manufactured Stainless Steels: A Review

Powder-bed additive manufacturing for aerospace application: Techniques, metallic and metal/ceramic composite materials and trends

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