Influence of deposition strategies on tensile and fatigue properties in a wire + arc additive manufactured Ti-6Al-4V

Syed, Abdul Khadar; Zhang, Xiang; Caballero, Armando; Shamir, Muhammad; Williams, Stewart

doi:10.1016/j.ijfatigue.2021.106268

Cited by 33 publications

(10 citation statements)

References 38 publications

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“…However, some boundaries that may have had lower misorientation did not have a welldefined α GB layer [14]. Columnar primary β grains resulted in 40% lower elongation in the samples loaded normal to α GB facilitating a preferential path for local damage accumulation along the grain boundary [15]. The formation of such microstructure heterogeneity along the α GB has been shown to influence material performance when subjected to cyclic loading.…”

Section: Introductionmentioning

confidence: 99%

“…The formation of such microstructure heterogeneity along the α GB has been shown to influence material performance when subjected to cyclic loading. Recently, Syed et al studied the role of anisotropy microstructure on high cycle fatigue performance of WAAM Ti64 built with different deposition strategies [15]. When α GB was perpendicular to the fatigue loading, where the majority of the single variant large α colonies are under fatigue loading, this lowered the fatigue strength compared to samples loaded along the α GB .…”

Section: Introductionmentioning

confidence: 99%

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Strain controlled fatigue behaviour of a wire + arc additive manufactured Ti-6Al-4V

Syed

Plaskitt²,

Hill³

et al. 2023

International Journal of Fatigue

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Strain controlled fatigue behaviour of a wire + arc additive manufactured Ti-6Al-4V

Syed

Plaskitt²,

Hill³

et al. 2023

International Journal of Fatigue

Self Cite

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“…These morphologies are evident proof that the fracture is ductile in nature. 30 The large dimples and fewer voids indicated that less elongation occurred in WFAM samples.…”

Section: Fractography Analysismentioning

confidence: 99%

Additive manufacturing and characterization of titanium wall used in nuclear application

Veeman¹,

Subramaniyan²,

Kumar

et al. 2023

Proceedings of the Institution of Mechanical Engineers, Part L:

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Titanium and its alloy are attractive materials used worldwide for various applications, especially for manufacturing fusion reactors and pressure vessels. This study aims to provide knowledge on the microstructural and mechanical characteristics of titanium grade 9 wall fabricated using wire feeding additive manufacturing (WFAM) with gas tungsten arc welding (GTAW)-aided technique. An inert environment is provided during the process to manufacture a defect-free wall. Due to varying thermal cycles, there is a variation in the microstructure of the WFAM processed wall. The change in the texture of the WFAM processed wall is analysed through electron backscatter diffraction spectroscopy (inverse pole figures and pole figures), which influences the material properties. The WFAM processed wall exhibits superior mechanical characteristics compared to wrought alloys. Numerous morphologies in the fractured surface infer the occurrence of ductile fracture. A comparative study has been conducted between the outcomes of finite element simulation and experimental results. The results of finite element simulation and experimentation were in good agreement. The compilation of results gathered from mechanical and microstructural characterization shows that gas tungsten arc welding-aided-WFAM titanium grade 9 wall is suitable for fabricating fusion reactors and pressure vessels. Hence, first-hand knowledge is gained on the fabrication of fusion reactors and pressure vessels in nuclear application using the tungsten arc welding-aided-WFAM titanium grade 9 wall.

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“…Some industries, such as aerospace and automotive, have already introduced and are widely implementing AM processes. Thus, the majority of reported data on fatigue performance of AM (and WAAM in particular) are for titanium [6,[14][15][16][17] and stainless steel [18,19]. However, only limited information is available on structural steels, which is required for promoting AM techniques in other industrial sectors, including civil engineering and renewable energy and offshore structures.…”

Section: Introductionmentioning

confidence: 99%

Fatigue life assessment of wire arc additively manufactured ER100S-1 steel parts

et al. 2023

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The aim of this work was to examine uniaxial, torsion, and multi-axial fatigue characteristics of ER100S-1 low carbon steel specimens fabricated with wire arc additive manufacturing (WAAM) technique, a subcategory of directed energy deposition (DED). Two distinct specimen orientations were tested—vertical and horizontal, extracted perpendicular and parallel to the WAAM deposited layers, respectively. Fracture surfaces of the tested specimens were analysed under scanning electron microscope (SEM) to observe fracture mechanisms corresponding to different specimen orientations, different fatigue loading conditions, and to interpret the fatigue results obtained from the tests. Finally, the obtained stress–life results were compared with the fatigue data available in the literature for a series of wrought and WAAM-built structural steel specimens. Moreover, the S–N curves obtained in this study were evaluated against the fatigue design curve recommended for offshore marine welded structures in DNV standard. Test results have shown advantageous characteristics of WAAM-built ER100S-1 specimens compared with behaviours of other structural steels and conservative prediction of its fatigue life by the design curve available in the DNV standard.

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Influence of deposition strategies on tensile and fatigue properties in a wire + arc additive manufactured Ti-6Al-4V

Cited by 33 publications

References 38 publications

Strain controlled fatigue behaviour of a wire + arc additive manufactured Ti-6Al-4V

Strain controlled fatigue behaviour of a wire + arc additive manufactured Ti-6Al-4V

Additive manufacturing and characterization of titanium wall used in nuclear application

Fatigue life assessment of wire arc additively manufactured ER100S-1 steel parts

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