Phase Studies of Additively Manufactured Near Beta Titanium Alloy-Ti55511

Maimaitiyili, Tuerdi; Mosur, Krystian; Kurzynowski, Tomasz; Casati, Nicola; Swygenhoven, H. Van

doi:10.3390/ma13071723

Cited by 14 publications

(5 citation statements)

References 32 publications

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“…Therefore, this composition has been employed for plenty of aviation purposes, such as load‐bearing parts, landing gears, and frames. [ 122 ] In 2020, Maimaitiyili et al [ 123 ] examined Ti‐55 511 processed via the L‐PBF and EBM methods. It was demonstrated that both processes could produce Ti55511 and attain virtually full density with limited porosity.…”

Section: Titanium Alloys Processabilitymentioning

confidence: 99%

Additive Manufacturing of Titanium Alloys: Processability, Properties, and Applications

Mosallanejad,

Abdi,

Karpasand

et al. 2023

Adv Eng Mater

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The restricted number of materials available for additive manufacturing (AM) technologies is a determining impediment to AM growing into sectors and providing supply chain relief. AM, in particular, is regarded as a trustworthy manufacturing technology to replace the traditional ones for Ti alloy components. Furthermore, the AM processability of Ti alloys and their features, such as microstructure, texture, and mechanical properties, is strongly dependent on the chemical composition of the processed alloy. It is essential to consider the ultimate applications as well. β Ti alloys are gaining popularity in the biomedical industry, while α + β Ti alloys are increasingly utilized for producing components in the automotive and aerospace sectors. Consequently, the topic has garnered considerable interest, and the current text reviews the advances during the last 10 years in this area to facilitate the pathway from the demanded Ti alloy to the best‐fit AM procedure. While systematically reviewing the works published in the literature, the current text attempts to establish a link between the production method, feedstock type, chemical composition, and the ultimate application. This review also features practical applications of Ti components produced by metal AM methods and offers prospective possibilities and industrial applications.

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Section: Titanium Alloys Processabilitymentioning

confidence: 99%

Additive Manufacturing of Titanium Alloys: Processability, Properties, and Applications

Mosallanejad,

Abdi,

Karpasand

et al. 2023

Adv Eng Mater

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“…This results in major residual stresses in the L-PBF material which generally requires post stress relieving heat treatment in contrast to E-PBF material which is constantly annealed throughout the PBF process. Furthermore, E-PBF material has a considerably larger surface roughness compared to L-PBF which is mainly attributed to the larger layer thickness and larger particle size for the E-PBF process [18], see Table 1.…”

Section: E-pbf Compared To L-pbf Processmentioning

confidence: 99%

3D-printing for Aerospace : Fatigue Behaviour of Additively Manufactured Titanium

Kahlin

2021

Linköping Studies in Science and Technology. Dissertations

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Laser powder bed fusion (L-PBF) and electron beam powder bed fusion (E-PBF) are two of the most common additive manufacturing (AM) methods which both provide the engineer with a great freedom of design. This means that parts with light weight, multifunctional applications and improved performance could be achieved through innovative design solutions which have attracted a lot of interest from the aerospace industry.This PhD project has focused on the following fatigue related areas for L-PBF and E-PBF Ti6Al4V material which all need to be addressed before AM can be fully introduced to critical aerospace applications: effect of geometry, roughness and loading on fatigue life, improved fatigue life through post processing, fatigue crack growth behaviour and fatigue prediction methods.The results show that the rough as-built surface is the single most severe factor for fatigue but that the fatigue strength of at least L-PBF material can be improved to levels similar to conventionally manufactured material using surface post processing. Furthermore, the results verify that a cumulative damage approach gives good accuracy in predicting fatigue life for variable amplitude loading and that fatigue crack growth rates using material data from standard specimens can be used for damage tolerance analysis independent of part geometry and stress level.The conclusion is therefore that the fatigue properties can be improved to acceptable levels and predicted using conventional methods. There are still some challenges to solve, however, especially within non-destructive testing before AM can be introduced to critical aerospace applications.

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“…While the AM of these materials has been largely successful, near-beta alloys such as Ti-5553 and Ti-55511 exhibit superior fracture toughness, are readily heat treatable, and are gaining popularity in the aerospace sector [13,14]. Accordingly, open literature on the development of AM techniques for near-beta Ti alloys is starting to emerge [5,6,[15][16][17].…”

Section: Introductionmentioning

confidence: 99%

Investigation of Deposition Parameters for Near-Beta Alloy Ti-55511 Fabricated by Directed Energy Deposition

Rayner,

Sweet,

Craig

et al. 2024

JMMP

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The directed energy deposition (DED) parameters were determined for near-β alloy Ti-55511 by employing statistical design of experiments (DOEs) methods. Parameters resulting in fully dense freeform deposits were identified using two sequential DOEs. Single laser tracks were printed with several laser power, traverse rate, and powder feed rate settings in an initial DOE to identify promising build parameters. The capture efficiency and effective deposition rate were used to characterize and rank the single track deposits. The best parameters were then used to print a solid cube with various X–Y and Z overlaps (different hatch spacing, HS, and layer thickness, ZS) in a second DOE. Suitable deposition parameters were selected based on the cube density and microstructure and were used to fabricate larger tensile samples for mechanical testing. Multiple parameter sets were found to provide dense Ti-55511 deposits with acceptable mechanical properties and the parametric models showed statistical significance.

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Phase Studies of Additively Manufactured Near Beta Titanium Alloy-Ti55511

Cited by 14 publications

References 32 publications

Additive Manufacturing of Titanium Alloys: Processability, Properties, and Applications

Additive Manufacturing of Titanium Alloys: Processability, Properties, and Applications

3D-printing for Aerospace : Fatigue Behaviour of Additively Manufactured Titanium

Investigation of Deposition Parameters for Near-Beta Alloy Ti-55511 Fabricated by Directed Energy Deposition

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