Characterization and Qualification of LPBF Additively Manufactured AISI-316L Stainless Steel Brackets for Aerospace Application

Pradeep, P. I.; Kumar, V. Anil; Sriranganath, A.; Singh, Satish Kumar; Sahu, Ankit Kumar; Kumar, T. Sasi; Narayanan, P. Ramesh; Arumugam, M.; Mohan, M.

doi:10.1007/s41403-020-00159-x

Cited by 34 publications

(5 citation statements)

References 8 publications

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“…It was initially thought of as a prototyping technique but now becoming a benchmark for manufacturers in many industries. The gain in terms of visibility of AM is due to the possibility of design new devices with complex shapes, 1 customizable, lightweight, 2 and with less waste of material, 3 especially in the aeronautical 4 and bioengineering 5,6 fields, compared to traditional techniques such as electric discharge machining (EDM), 7,8 turning, 9 and milling 10 . Different materials, both polymeric and metallic, can be adopted for AM processing.…”

Section: Introductionmentioning

confidence: 99%

Comparison on mechanical behavior and microstructural features between traditional and AM AISI 316L

Santonocito

Fintová

Cocco

et al. 2022

Fatigue Fract Eng Mat Struct

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The aim of the present work is to investigate the difference in mechanical behavior between AISI 316L obtained by the turning process and that obtained by selective laser melting (SLM). To obtain a correlation between mechanical behavior and microstructure, static tensile and fatigue tests were performed, monitoring the energy release of the material adopting, respectively, the static thermographic method (STM) and the Risitano's thermographic method (RTM). Failure analysis was performed using optical and scanning electron microscopy. The corrosion resistance was evaluated by the double‐loop electropotential reactivation (DL‐EPR). Worst mechanical properties, both under static and fatigue loading conditions, loss of corrosion resistance, and heat dissipation compared to traditional stainless steel have been found. These findings can be attributed to microstructural defects typical of the SLM printing technology.

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Section: Introductionmentioning

confidence: 99%

Comparison on mechanical behavior and microstructural features between traditional and AM AISI 316L

Santonocito

Fintová

Cocco

et al. 2022

Fatigue Fract Eng Mat Struct

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show abstract

“…This alloy has opened new avenues, especially with the advent of L-PBF technology, leading to its exploration in hydrogen-related applications, aerospace endeavors, and nuclear industries. Extensive testing has validated the efficacy of L-PBF-manufactured 316L SS, underscoring its adaptability and promising prospects in innovative technological applications [24][25][26].…”

Section: Introductionmentioning

confidence: 94%

The Heat Treatment Effects on the Microstructure, Hardness, and Sigma Phase Content of L-PBF SAE 316L Stainless Steel

Costa,

Monteiro,

Rocha

et al. 2024

Academia Materials Science

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This research aims to enhance the understanding of the interrelationships among the manufacturing process, microstructure, and mechanical properties in the Laser Powder Bed Fusion (L-PBF) of SAE 316L stainless steel (SS), which can lead to the appearance of undesirable phases, like sigma (σ). As part of this investigation, as-built samples underwent solubilization heat treatment (HT), primarily targeting the dissolution of the σ phase and microstructure homogenization, with a subsequent assessment of its impact on hardness. The study reveals the efficacy of HT in reducing σ phase content, particularly following treatments at 950°C and 1,050°C for 2 h. Notably, the dissolution of the process-induced microstructure becomes progressively significant within the temperature range of 800-950°C for 2 h. Furthermore, the study identifies a hardening effect associated with the process-induced microstructure on the samples. Remarkably, the sample exhibiting the highest hardness value featured a substantial σ phase content and maintained the process-induced structure after HT.

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“…By offering geometric freedom and flexibility to manufacture one-off prototypes directly from a computer aided design, additive manufacturing (AM) of metallic materials allows product designers to push the boundaries of part performance. For example, additive manufacturing has allowed weight reduction of automotive engine components [1], aerospace brackets [2], turbine engine components [3], and provided capability for inclusion of internal cooling channels or lattice structures not possible via conventional manufacturing processes [4]. AM is a disruptive technology as it reduces energy use, material waste, and maintenance costs, thus affecting the economic, societal, and environmental dimensions of sustainable development.…”

Section: Introductionmentioning

confidence: 99%

Recycled Aluminium Feedstock in Metal Additive Manufacturing: A State of the Art Review

Yakubov,

Ostergaard,

Bhagavath

et al. 2024

Preprint

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Characterization and Qualification of LPBF Additively Manufactured AISI-316L Stainless Steel Brackets for Aerospace Application

Cited by 34 publications

References 8 publications

Comparison on mechanical behavior and microstructural features between traditional and AM AISI 316L

Comparison on mechanical behavior and microstructural features between traditional and AM AISI 316L

The Heat Treatment Effects on the Microstructure, Hardness, and Sigma Phase Content of L-PBF SAE 316L Stainless Steel

Recycled Aluminium Feedstock in Metal Additive Manufacturing: A State of the Art Review

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