Additive manufacturing-based repair of IN718 superalloy and high-cycle fatigue assessment of the joint

Sarkar, Rajarshi; Chen, Bo; Fitzpatrick, Michael E.; Fabijanic, Daniel; Hilditch, Tim

doi:10.1016/j.addma.2022.103276

Cited by 4 publications

(5 citation statements)

References 53 publications

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“…Overall, there was a significant improvement in terms of the material strength in the IN718/TiB 2 deposits in comparison with the IN718 alone; however, the ductility was drastically reduced. The material strength of IN718/TiB 2 is comparable to the solution treated and aged DED IN718 [49].…”

Section: Tensile Propertiesmentioning

confidence: 75%

Blown-Powder Direct-Energy-Deposition of Titanium-Diboride-Strengthened In718 Ni-Base Superalloy

Sarkar¹,

Chen

Fitzpatrick

et al. 2023

Preprint

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Section: Tensile Propertiesmentioning

confidence: 75%

Blown-Powder Direct-Energy-Deposition of Titanium-Diboride-Strengthened In718 Ni-Base Superalloy

Sarkar¹,

Chen

Fitzpatrick

et al. 2023

Preprint

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“…Additive manufacturing metal materials include titanium alloys [ 16 , 17 ], aluminum alloys [ 18 , 19 ], high-temperature alloys [ 20 , 21 , 22 , 23 ], steel [ 24 , 25 , 26 ], and magnesium alloys [ 27 , 28 ]. The raw material forms used in metal additive manufacturing include metal powders and wires [ 29 ], the most widely used of which is metal powder.…”

Section: Metal Additive Manufacturing Formation Processmentioning

confidence: 99%

Advances in Fatigue Performance of Metal Materials with Additive Manufacturing Based on Crystal Plasticity: A Comprehensive Review

Zhang,

Wang,

Wang

et al. 2024

Materials

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Using metal additive manufacturing processes can make up for traditional forging technologies when forming complex-shaped parts. At the same time, metal additive manufacturing has a fast forming speed and excellent manufacturing flexibility, so it is widely used in the aerospace industry and other fields. The fatigue strength of metal additive manufacturing is related to the microstructure of the epitaxially grown columnar grains and crystallographic texture. The crystal plasticity finite element method is widely used in the numerical simulation of the microstructure and macro-mechanical response of materials, which provides a strengthening and toughening treatment and can reveal the inner rules of material deformation. This paper briefly introduces common metal additive manufacturing processes. In terms of additive manufacturing fatigue, crystal plasticity simulations are summarized and discussed with regard to several important influencing factors, such as the microstructure, defects, surface quality, and residual stress.

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“…d) Schematics of LDED repaired IN718 superalloy block, grain orientation maps showing the grain morphology and distribution in the LDED repaired joint for the e) direct aged (DA) and f) solution treated and aged (STA) conditions, g) Power‐law‐type S‐N curves, Reproduced with permission. [ 189 ] Copyright 2022, Elsevier. The comparison of S‐N curves of the AMed and wrought IN718 superalloys at h) room temperature (RT) and i) 650 °C, Reproduced with permission.…”

Section: Fatigue Performance Of Amed Metalsmentioning

confidence: 99%

“…Thus, post-heat treatment is mandatory to improve fatigue property. Sarkar et al [189] assessed the high-cycle fatigue property of the IN718 superalloy joint repaired through LDED, and the joint was the region between the substrate and the deposited metal, as shown in Figure 14d. The samples had two conditions, i.e., one was solution-treated and aged (STA), and another was direct aged (DA) only.…”

Section: Fatigue Performancementioning

confidence: 99%

See 1 more Smart Citation

Review on Fatigue of Additive Manufactured Metallic Alloys: Microstructure, Performance, Enhancement, and Assessment Methods

Liu,

Yu,

Guo

et al. 2023

Advanced Materials

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Additive manufacturing (AM), which is a process of building objects in a layer‐upon‐layer fashion from designed models, has received unprecedented attention from research and industry because it offers outstanding merits of flexibility, customization, reduced buy‐to‐fly ratio, and cost‐effectiveness. However, the fatigue performance of safety‐critical industrial components fabricated by AM is still far below that obtained from conventional methods. This review discusses the microstructural heterogeneities, randomly dispersed defects, poor surface quality, and complex residual stress generated during the AM process that can negatively impact the fatigue performance of as‐printed parts. The difference in microstructural origin of fatigue failure between conventionally manufactured and printed metals is reviewed with particular attention to the effects of the trans‐scale microstructures on AM fatigue failure mechanisms. Various methods for mitigating the fatigue issue, including pre‐process, inter‐process and post‐process treatments, are illustrated. Empirical, semi‐empirical and microstructure‐sensitive models are presented to predict fatigue strength and lifetime. Summary and outlooks for future development of the fatigue performance of AM materials are provided.This article is protected by copyright. All rights reserved

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Additive manufacturing-based repair of IN718 superalloy and high-cycle fatigue assessment of the joint

Cited by 4 publications

References 53 publications

Blown-Powder Direct-Energy-Deposition of Titanium-Diboride-Strengthened In718 Ni-Base Superalloy

Blown-Powder Direct-Energy-Deposition of Titanium-Diboride-Strengthened In718 Ni-Base Superalloy

Advances in Fatigue Performance of Metal Materials with Additive Manufacturing Based on Crystal Plasticity: A Comprehensive Review

Review on Fatigue of Additive Manufactured Metallic Alloys: Microstructure, Performance, Enhancement, and Assessment Methods

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