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Review

Microstructure and Mechanical Properties of AISI 316L Produced by Directed Energy Deposition-Based Additive Manufacturing: A Review

by
Abdollah Saboori
*,
Alberta Aversa
,
Giulio Marchese
,
Sara Biamino
,
Mariangela Lombardi
and
Paolo Fino
Department of Applied Science and Technology, Politecnico Di Torino, Corso Duca degli Abruzzi 24, 10129 Torino, Italy
*
Author to whom correspondence should be addressed.
Appl. Sci. 2020, 10(9), 3310; https://doi.org/10.3390/app10093310
Submission received: 20 April 2020 / Revised: 6 May 2020 / Accepted: 6 May 2020 / Published: 9 May 2020
(This article belongs to the Special Issue Materials Development by Additive Manufacturing Techniques)
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Abstract

Directed energy deposition (DED) as a metal additive manufacturing technology can be used to produce or repair complex shape parts in a layer-wise process using powder or wire. Thanks to its advantages in the fabrication of net-shape and functionally graded components, DED could attract significant interest in the production of high-value parts for different engineering applications. Nevertheless, the industrialization of this technology remains challenging, mainly because of the lack of knowledge regarding the microstructure and mechanical characteristics of as-built parts, as well as the trustworthiness/durability of engineering parts produced by the DED process. Hence, this paper reviews the published data about the microstructure and mechanical performance of DED AISI 316L stainless steel. The data show that building conditions play key roles in the determination of the microstructure and mechanical characteristics of the final components produced via DED. Moreover, this review article sheds light on the major advancements and challenges in the production of AISI 316L parts by the DED process. In addition, it is found that in spite of different investigations carried out on the optimization of process parameters, further research efforts into the production of AISI 316L components via DED technology is required.
Keywords: additive manufacturing; directed energy deposition; AISI 316L; microstructure; mechanical properties additive manufacturing; directed energy deposition; AISI 316L; microstructure; mechanical properties

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MDPI and ACS Style

Saboori, A.; Aversa, A.; Marchese, G.; Biamino, S.; Lombardi, M.; Fino, P. Microstructure and Mechanical Properties of AISI 316L Produced by Directed Energy Deposition-Based Additive Manufacturing: A Review. Appl. Sci. 2020, 10, 3310. https://doi.org/10.3390/app10093310

AMA Style

Saboori A, Aversa A, Marchese G, Biamino S, Lombardi M, Fino P. Microstructure and Mechanical Properties of AISI 316L Produced by Directed Energy Deposition-Based Additive Manufacturing: A Review. Applied Sciences. 2020; 10(9):3310. https://doi.org/10.3390/app10093310

Chicago/Turabian Style

Saboori, Abdollah, Alberta Aversa, Giulio Marchese, Sara Biamino, Mariangela Lombardi, and Paolo Fino. 2020. "Microstructure and Mechanical Properties of AISI 316L Produced by Directed Energy Deposition-Based Additive Manufacturing: A Review" Applied Sciences 10, no. 9: 3310. https://doi.org/10.3390/app10093310

APA Style

Saboori, A., Aversa, A., Marchese, G., Biamino, S., Lombardi, M., & Fino, P. (2020). Microstructure and Mechanical Properties of AISI 316L Produced by Directed Energy Deposition-Based Additive Manufacturing: A Review. Applied Sciences, 10(9), 3310. https://doi.org/10.3390/app10093310

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