Research of mechanical properties and chemical composition of samples made of aluminium alloy AMg6 and obtained by electron beam additive manufacturing with wire feeding

An investigation of mechanical properties of Ti6Al4V produced by additive manufacturing (AM) in the as-printed condition have been conducted and compared with wrought alloys. The AM samples were built by Selective Laser Melting (SLM) and Electron Beam Melting (EBM) in 0°, 45° and 90°—relative to horizontal direction. Similarly, the wrought samples were also cut and tested in the same directions relative to the plate rolling direction. The microstructures of the samples were significantly different on all samples. α′ martensite was observed on the SLM, acicular α on EBM and combination of both on the wrought alloy. EBM samples had higher surface roughness (Ra) compared with both SLM and wrought alloy. SLM samples were comparatively harder than wrought alloy and EBM. Tensile strength of the wrought alloy was higher in all directions except for 45°, where SLM samples showed higher strength than both EBM and wrought alloy on that direction. The ductility of the wrought alloy was consistently higher than both SLM and EBM indicated by clear necking feature on the wrought alloy samples. Dimples were observed on all fracture surfaces.

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Effect of electron beam continuity on microstructures and mechanical properties of titanium lattice structures produced with electron beam additive manufacturing

Materials & Design ◽

10.1016/j.matdes.2021.109822 ◽

2021 ◽

pp. 109822

Author(s):

Seok-Joon Jeong ◽

Hae-Jin Lee ◽

Byoung-Soo Lee

Keyword(s):

Mechanical Properties ◽

Electron Beam ◽

Additive Manufacturing ◽

Lattice Structures ◽

Microstructures And Mechanical Properties

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Mechanical properties of joints of 1460 aluminium alloy, produced by electron beam welding using filler material from 1201 alloy

The Paton Welding Journal ◽

10.37434/tpwj2020.12.02 ◽

2020 ◽

Vol 2020 (12) ◽

pp. 15-20

Author(s):

V.V. Skryabinskyi ◽

◽

V.M. Nesterenkov ◽

V.R. Strashko ◽

◽

...

Keyword(s):

Mechanical Properties ◽

Electron Beam ◽

Aluminium Alloy ◽

Electron Beam Welding ◽

Filler Material

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The Effect of Hydrogen-Charging on Mechanical Properties of Austenitic CrNi Steel Fabricated by Wire-Feed Electron Beam Additive Manufacturing

E3S Web of Conferences ◽

10.1051/e3sconf/202122501011 ◽

2021 ◽

Vol 225 ◽

pp. 01011

Author(s):

Marina Panchenko ◽

Eugeny Melnikov ◽

Valentina Moskvina ◽

Sergey Astafurov ◽

Galina Maier ◽

...

Keyword(s):

Mechanical Properties ◽

Electron Beam ◽

Additive Manufacturing ◽

Hydrogen Embrittlement ◽

Yield Strength ◽

Cast Steel ◽

Solution Treatment ◽

Fracture Mechanisms ◽

Hydrogen Charging ◽

Wire Feed

A comparative study of the mechanical properties, fracture mechanisms and hydrogen embrittlement peculiarities was carried out using the specimens of austenitic CrNi steel produced by two different methods: wire-feed electron beam additive manufacturing and conventional casting followed by solid-solution treatment. Hydrogen-induced reduction of ductility and the increase in the yield strength are observed in steel specimens produced by both methods. Despite hydrogen embrittlement index is comparable in them, the increase in the yield strength after hydrogen-charging is different: 25 MPa for cast steel and 175 MPa for additively manufactured steel. This difference is associated with the peculiarities of phase composition and phase distribution in steels produced by different methods.

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On the Impact of Build Envelope Sizes on E-PBF Processed Pure Iron

Metallurgical and Materials Transactions B ◽

10.1007/s11663-021-02368-3 ◽

2021 ◽

Author(s):

C. J. J. Torrent ◽

P. Krooß ◽

T. Niendorf

Keyword(s):

Mechanical Properties ◽

Electron Beam ◽

Additive Manufacturing ◽

Thermal History ◽

Powder Bed Fusion ◽

Parameter Setting ◽

Powder Bed ◽

History Of ◽

Specific Temperature ◽

The Impact

AbstractIn additive manufacturing, the thermal history of a part determines its final microstructural and mechanical properties. The factors leading to a specific temperature profile are diverse. For the integrity of a parameter setting established, periphery variations must also be considered. In the present study, iron was processed by electron beam powder bed fusion. Parts realized by two process runs featuring different build plate sizes were analyzed. It is shown that the process temperature differs significantly, eventually affecting the properties of the processed parts.

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Electron and Laser Beam Additive Manufacturing with Wire - Comparison of Processes

Key Engineering Materials ◽

10.4028/www.scientific.net/kem.799.294 ◽

2019 ◽

Vol 799 ◽

pp. 294-299 ◽

Cited By ~ 2

Author(s):

Marek Stanisław Węglowski ◽

Sylwester Błacha ◽

Robert Jachym ◽

Jan Dutkiewicz ◽

Łukasz Rogal ◽

...

Keyword(s):

Mechanical Properties ◽

Tensile Strength ◽

Stainless Steel ◽

Electron Beam ◽

Additive Manufacturing ◽

Laser Beam ◽

Cross Section ◽

Mechanical Tests ◽

Manufacturing Processes ◽

Metallographic Examination

Electron beam (EBAM) and laser beam (LBAM) additive manufacturing processes with a deposited material in the form of a wire are an efficient methods enabling the making of component parts. The scope of the presented work was to investigate the influence of technological process on microstructure and mechanical properties such as tensile strength, microhardness and elongation of the fabricated components. The achieved results and gained knowledge will enable the production of a whole structure from stainless steel in the future. The metallographic examination revealed that the microstructure is not fully homogenies, the cell-dendritic areas occurred. Moreover, the microhardness profiles indicated that some fluctuation in the microstructure as well as mechanical properties can be observed on the cross section of deposited components. However, the mechanical tests showed that the tensile strength as well as elongation fulfil the requirement of producer of deposited wire.

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