Electron beam melting of Ti–48Al–2Cr–2Nb alloy: Microstructure and mechanical properties investigation

Biamino, Sara; Penna, Andrea; Ackelid, U.; Sabbadini, S.; Tassa, O.; Fino, Paolo; Pavese, Matteo; Gennaro, P.; Badini, Claudio Francesco

doi:10.1016/j.intermet.2010.11.017

Cited by 391 publications

(183 citation statements)

References 29 publications

(17 reference statements)

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“…A conceptual schematic of an EBAM machine is shown in Figure 1 [2]. The principle is very similar to that of a scanning electron microscope.…”

Section: Ebam Details Process Principlementioning

confidence: 99%

“…The typical pressure of residual gases in an EBAM machine is 10 À1 Pa in the vacuum chamber and 10 À3 Pa in the electron gun [2]. During the melting process, a low pressure of inert helium gas (10 À1 Pa) is added to the vacuum chamber to avoid build-up of electrical charges in powder.…”

Section: Ebam Details Process Principlementioning

confidence: 99%

“…Moreover, EBAM is one of a few AM technologies capable of making full-density functional metallic parts, drastically extending AM applications. In particular, the ability of direct fabrications of metallic parts can significantly accelerate product designs and developments in a wide variety of metallic-part applications, especially for complex components, e.g., fine network structures, internal cavities and channels, which are difficult to make by conventional manufacturing means [1,2].…”

Section: Introductionmentioning

confidence: 99%

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Review on powder-based electron beam additive manufacturing technology

Gong

Anderson

Chou

2014

Manufacturing Review

134

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-This paper presents a thorough literature review of the powder-based electron beam additive manufacturing (EBAM) technology. EBAM, a relatively new additive manufacturing (AM) process, can produce full-density metallic parts directly from the electronic data of the designed part geometry. EBAM has gained broad attentions from different industries such as aerospace and biomedical, with great potential in a variety of applications. The paper first introduces the general aspects of EBAM. The unique characteristics, advantages and challenges of EBAM are then presented. Moreover, the hub of this paper includes extensive discussions of microstructures, mechanical properties, geometric attributes, which impact the application ranges of EBAM parts, with focus on commonly used titanium alloys (in particular, Ti-6Al-4V). In the end, modeling efforts and process metrology of the EBAM process are discussed as well.

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“…A conceptual schematic of an EBAM machine is shown in Figure 1 [2]. The principle is very similar to that of a scanning electron microscope.…”

Section: Ebam Details Process Principlementioning

confidence: 99%

Section: Ebam Details Process Principlementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Review on powder-based electron beam additive manufacturing technology

Gong

Anderson

Chou

2014

Manufacturing Review

134

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“…Biamano et al investigated the possibility to produce fully dense near-net-shape parts made of the Ti-48Al-2Cr-2Nb alloy composition 20 . A process optimization was needed to completely eliminate the residual porosity located between two subsequent layers.…”

Section: ° the Ebm Processmentioning

confidence: 99%

The prospects for additive manufacturing of bulk TiAl alloy

Thomas

Malot

Aubry

et al. 2016

Materials at High Temperatures

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“…The powder show the presence of satellites, which may influence the flow ability of the powder (Figure 1) [18]. The XRD pattern (Figure 2) reveals the presence of a single β-phase (Im-3m), whereas the rod used for gas atomization process consists of two phases (hexagonal α-phase and β-phase).…”

Section: Ti-45nb Gap Starting Materialsmentioning

confidence: 99%

Selective Laser Melting of Ti-45Nb Alloy

Schwab

Prashanth

Löber

et al. 2015

Metals

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Ti-45Nb is one of the potential alloys that can be applied for biomedical applications as implants due to its low Young's modulus. Ti-45Nb (wt.%) gas atomized powders were used to produce bulk samples by selective laser melting with three different parameter sets (energy inputs). A β-phase microstructure consisting of elliptical grains with an enriched edge of titanium was observed by scanning electron microscopy and X-ray diffraction studies. The mechanical properties of these samples were evaluated using hardness and compression tests, which suggested that the strength of the samples increases with increasing energy input within the range considered.

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Electron beam melting of Ti–48Al–2Cr–2Nb alloy: Microstructure and mechanical properties investigation

Cited by 391 publications

References 29 publications

Review on powder-based electron beam additive manufacturing technology

Review on powder-based electron beam additive manufacturing technology

The prospects for additive manufacturing of bulk TiAl alloy

Selective Laser Melting of Ti-45Nb Alloy

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