2021
DOI: 10.3390/ma14030640
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Defects in Electron Beam Melted Ti-6Al-4V: Fatigue Life Prediction Using Experimental Data and Extreme Value Statistics

Abstract: Electron beam melting is a powder bed fusion (PBF) additive manufacturing (AM) method for metals offering opportunities for the reduction of material waste and freedom of design, but unfortunately also suffering from material defects from production. The stochastic nature of defect formation leads to a scatter in the fatigue performance of the material, preventing wider use of this production method for fatigue critical components. In this work, fatigue test data from electron beam melted Ti-6Al-4V specimens m… Show more

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Cited by 15 publications
(3 citation statements)
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References 38 publications
(64 reference statements)
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“…In other cases, when using Ti scaffolds as bone implants, rough surfaces enhance the fixation between an implant and bone. Loose powder on the surface is undesirable and should be removed, e. g. by chemical etching (Sandell et al, 2021). The imperfections may result from both material and process determinants.…”
Section: Issues Associated With the Biomedical Implants Along With Th...mentioning
confidence: 99%
See 1 more Smart Citation
“…In other cases, when using Ti scaffolds as bone implants, rough surfaces enhance the fixation between an implant and bone. Loose powder on the surface is undesirable and should be removed, e. g. by chemical etching (Sandell et al, 2021). The imperfections may result from both material and process determinants.…”
Section: Issues Associated With the Biomedical Implants Along With Th...mentioning
confidence: 99%
“…A bone implant is usually expected to possess higher mechanical strengths near bone elastic modulus. The long-term successful implantation is determined by its fatigue strength under cyclic loading conditions (Sandell et al, 2021). The mechanical properties are also influenced by the topology, defects, parent material and relative density (Gatto et al, 2021;Sizova et al, 2021).…”
Section: Issues Associated With the Biomedical Implants Along With Th...mentioning
confidence: 99%
“…The EBM methods have a number of advantages when compared to the classic vacuum arc remelting (VAR) process, that lead to a better ingot quality. In particular, melting is conducted in a higher vacuum and for a longer time, thus enabling more complete degassing and dissolution of exogenous inclusions such as low-density inclusions known as hard-alpha [ 1 , 2 ].…”
Section: Introductionmentioning
confidence: 99%