Selective Laser Melting of Ti-45Nb Alloy

Schwab, H.; Prashanth, Konda Gokuldoss; Löber, Lukas; Kühn, U.; Eckert, J.

doi:10.3390/met5020686

Cited by 87 publications

(53 citation statements)

References 28 publications

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“…[188] [189][190][191] dedicated study to this topic [192] Ti6Al4V >99 99.98 [45,61,76,103,104,169,[193][194][195][196] dedicated studies to this topic [192,197] Ti6Al7Nb 99.95 [198] Ti45Al2Cr5Nb 92.25 [199] Ti24Nb4Zr8Sn >99 [200] Ti45Nb 99.5 [201] Ti-5553 99.95 [10] Ti-50 wt% Ta 99.7 [202] Ti-0.5..1.5 at% Re >99.3 [203] Ti reinforced with 15 wt% TiC 98 [204] a) common relates to consistent results found in multiple publications. [188] [189][190][191] dedicated study to this topic [192] Ti6Al4V >99 99.98 [45,61,76,103,104,169,[193][194][195][196] dedicated studies to this topic [192,197] Ti6Al7Nb 99.95 [198] Ti45Al2Cr5Nb 92.25 [199] Ti24Nb4Zr8Sn >99 [200] Ti45Nb 99.5 [201] Ti-5553 99.95 …”

Section: Mechanical Propertiesmentioning

confidence: 99%

A Review of Metal Fabricated with Laser‐ and Powder‐Bed Based Additive Manufacturing Techniques: Process, Nomenclature, Materials, Achievable Properties, and its Utilization in the Medical Sector

et al. 2018

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Additive manufacturing has multiple advantages over conventional fabrication techniques, such as the geometrical freedom and, to a great extent, the omission of tooling equipment. Hence, futuristic designs and non-standard topology-optimized structures can be fabricated without causing noteworthy extra cost, since the geometrical complexity is, exaggeratedly spoken, for free. The manufacturing time and the amount of required raw material are the key criteria, which determine the expenses. What at first glance appears as an engineer's dream, introduces its complexity in the description of the material's characteristics and their volatility to the manufacturing conditions. Within this study, the main properties (i.e., surface hardness, tensile, and compression strength, as well as fracture toughness) and their anisotropic and inhomogeneous nature are addressed. Detailed overviews of the progress to date for aluminum, iron, titanium, cobalt, and nickel based raw materials are provided. Furthermore, an overview about the state-of-the-art in the medical sector is included, comprising the areas of utilization and several trail studies.

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Section: Mechanical Propertiesmentioning

confidence: 99%

A Review of Metal Fabricated with Laser‐ and Powder‐Bed Based Additive Manufacturing Techniques: Process, Nomenclature, Materials, Achievable Properties, and its Utilization in the Medical Sector

et al. 2018

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“…[46][47][48] On the other hand, the microstructure of the TNMC is completely different. Figures 2 (d)-2(f) suggest that the reinforcement is distributed in the form of irregularly shaped dendrites and particles, with an average width of 482 6 68 nm and 1.75 6 0.32 lm length.…”

Section: A Structural and Microstructural Analysismentioning

confidence: 99%

Processing of Al–12Si–TNM composites by selective laser melting and evaluation of compressive and wear properties

et al. 2015

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Al-12Si (80 vol%)-Ti 52.4 Al 42.2 Nb 4.4 Mo 0.9 B 0.06 (at.%) (TNM) composites were successfully produced by the selective laser melting (SLM). Detailed structural and microstructural analysis shows the formation of the Al 6 MoTi intermetallic phase due to the reaction of the TNM reinforcement with the Al-12Si matrix during SLM. Compression tests reveal that the composites exhibit significantly improved properties (;140 and ;160 MPa higher yield and ultimate compressive strengths, respectively) compared with the Al-12Si matrix. However, the samples break at ;6% total strain under compression, thus showing a reduced plasticity of the composites. Sliding wear tests were carried out for both the Al-12Si matrix and the Al-12Si-TNM composites. The composites perform better under sliding wear conditions and the wear rate increases with increasing loads. At high loads, the wear takes place at three different rates and the wear rate decreases with increasing experiment duration.

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“…There are several process parameters that can influence the fabrication process and that have to be carefully adjusted such as to produce parts without defects such as porosity, cracks, altered chemical composition by selective vaporization. [10,11]. However, most of the current research on the process optimization considers only the energy input or CONTACT K.G.…”

Section: Introductionmentioning

confidence: 99%

Is the energy density a reliable parameter for materials synthesis by selective laser melting?

Prashanth

Scudino

Maity

et al. 2017

Materials Research Letters

326

104

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The effective fabrication of materials using selective laser melting depends on the process parameters. Here, we analyse the suitability of the energy density to represent the energy transferred to the powder bed, which is effectively used to melt the particles and to produce the bulk specimens. By properly varying laser power and speed in order to process the powder at constant energy density, we show that the equation currently used to calculate the energy density gives only an approximate estimation and that hatch parameters and material properties should be considered to correctly evaluate the energy density. IMPACT STATEMENTAl-12Si SLM samples were fabricated at constant energy density. The laser power and laser scan speed combination variation was used to demonstrate the significant changes needed with energy density equation. ARTICLE HISTORY

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Selective Laser Melting of Ti-45Nb Alloy

Cited by 87 publications

References 28 publications

A Review of Metal Fabricated with Laser‐ and Powder‐Bed Based Additive Manufacturing Techniques: Process, Nomenclature, Materials, Achievable Properties, and its Utilization in the Medical Sector

A Review of Metal Fabricated with Laser‐ and Powder‐Bed Based Additive Manufacturing Techniques: Process, Nomenclature, Materials, Achievable Properties, and its Utilization in the Medical Sector

Processing of Al–12Si–TNM composites by selective laser melting and evaluation of compressive and wear properties

Is the energy density a reliable parameter for materials synthesis by selective laser melting?

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