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Journal articles on the topic 'Corrosion. Direct Metal Laser Sintering'

Author: Grafiati

Published: 5 June 2025

Last updated: 1 August 2025

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1

Băilă, Diana Irinel. "Corrosion Behavior in Artificial Saliva of Personalized Dental Crowns of Co-Cr Alloys Manufactured by DMLS Process." Applied Mechanics and Materials 799-800 (October 2015): 515–19. http://dx.doi.org/10.4028/www.scientific.net/amm.799-800.515.

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The purpose of this paper is to realize some researches concerning the powder Co-Cr, the sintering compacts obtain after Direct Metal Laser Sintering manufacturing and the corrosion resistance in artificial saliva. The Co-Cr alloys are used frequently in dentistry to realize personalized dental crown, bridges, chapels, dental implants or microsurgery instruments. The Co-Cr powders are used in Direct Metal Laser Sintering technologies to obtain personalized dental crown with complex forms after a ”stl” file, realized after a tomography or oral scanning. Direct Metal Laser Sintering process is u

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Karthik, R., Elangovan K, and K. G. Girisha. "Development of Corrosion Resistant Laser Sintered Inconel 718 Material using Salt Spray Test." International Journal of Innovative Technology and Exploring Engineering (IJITEE) 10, no. 2 (2020): 5–9. https://doi.org/10.35940/ijitee.B8220.1210220.

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The conventional method is facing difficulty in manufacturing the nickel based alloys. Metal or composite components can be made using Direct Metal Laser Sintering (DMLS) process. Right now, Inconel 718 is a very much required alloy in defence, aerospace, chemical, oil and gas applications because of its admirable hot corrosion resistance and thermal –mechanical properties. In this research, we investigate the corrosion behaviour of the laser sintered and commercially available Inconel 718 alloy using salt spray test as per ASTM B117 for different exposing hours (24, 48, 72, 96, 120, 144

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Cabrini, M., S. Lorenzi, T. Pastore, et al. "Corrosion resistance of direct metal laser sintering AlSiMg alloy." Surface and Interface Analysis 48, no. 8 (2016): 818–26. http://dx.doi.org/10.1002/sia.5981.

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de Damborenea, J. J., M. A. Arenas, Maria Aparecida Larosa, André Luiz Jardini, Cecília Amélia de Carvalho Zavaglia, and A. Conde. "Corrosion of Ti6Al4V pins produced by direct metal laser sintering." Applied Surface Science 393 (January 2017): 340–47. http://dx.doi.org/10.1016/j.apsusc.2016.10.031.

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R, Karthik, K. Elangovan, and Girisha K G. "Development of Corrosion Resistant Laser Sintered Inconel 718 Material using Salt Spray Test." International Journal of Innovative Technology and Exploring Engineering 10, no. 2 (2020): 5–9. http://dx.doi.org/10.35940/ijitee.b8220.1210220.

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The conventional method is facing difficulty in manufacturing the nickel based alloys. Metal or composite components can be made using Direct Metal Laser Sintering (DMLS) process. Right now, Inconel 718 is a very much required alloy in defence, aerospace, chemical, oil and gas applications because of its admirable hot corrosion resistance and thermal –mechanical properties. In this research, we investigate the corrosion behaviour of the laser sintered and commercially available Inconel 718 alloy using salt spray test as per ASTM B117 for different exposing hours (24, 48, 72, 96, 120, 144, 168

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Singh, Rupinder, Rishab, and Jashanpreet S. Sidhu. "On three-dimensional printing of 17-4 precipitation-hardenable stainless steel with direct metal laser sintering in aircraft structural applications." Proceedings of the Institution of Mechanical Engineers, Part L: Journal of Materials: Design and Applications 236, no. 2 (2021): 440–50. http://dx.doi.org/10.1177/14644207211044804.

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The martensitic 17-4 precipitation-hardenable stainless steel is one of the commercially established materials for structural engineering applications in aircrafts due to its superior mechanical and corrosion resistance properties. The mechanical processing of this alloy through a conventional manufacturing route is critical from the dimensional accuracy (Δ d) viewpoint for development of innovative structural components such as: slat tracks, wing flap tracks, etc. In past two decades, a number of studies have been reported on challenges being faced while conventional processing of 17-4 precip

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Kovács, Dorina, and Dávid Miklós Kemény. "Effect of plasma nitriding of austenitic stainless steel produced by direct metal laser sintering." Acta Metallurgica Slovaca 27, no. 4 (2021): 190–94. http://dx.doi.org/10.36547/ams.27.4.1172.

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A special additive manufacturing (AM), called as Direct Metal Laser Sintering (DMLS), is a technology that produces 3D workpieces using a wide range of different metals as raw materials. The aim of current research is to investigate the plasma nitriding effect on the DMLS produced samples. The direct current plasma nitriding treatment was achieved at 440 °C for 4 hours with 75%N2 – 25%H2 gas mixture. Before the treatment, the 316L austenitic stainless steels samples were ground with different methods to modify the surface roughness. Scanning electron microscope (SEM), X-ray diffractometer, glo

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L, Daniel Devaraj, Srinivasan V, and Selvabharathi S. "Corrosion and Tribological Studies on Additively Manufactured Gyroid Ti-6Al-4V with Varied Porosity Percentage for Orthopaedic Application." Indian Journal of Science and Technology 16, no. 40 (2023): 3443–52. https://doi.org/10.17485/IJST/v16i40.1882.

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Abstract <strong>Objectives:</strong> To evaluate the tribological and corrosive characteristics of an additively printed gyroid Ti-6Al-4V for Bio medical implant application. <strong>Methods:</strong> Direct Metal Laser Sintering with regulated input process parameters were used to print the samples. Corrosion investigations have been completely investigated using Potentiodynamic polarization under simulated body fluid conditions. The wear parameters for the samples were maintained with normal load ranging from 10 to 50 N, with sliding velocity ranging from 0.5 to 1.5 m/s for a

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Kolmakov, А. G., А. Yu Ivannikov, М. А. Kaplan, А. А. Kirsankin та М. A. Sevost’yanov. "Коррозионностойкие стали в аддитивном производстве". Izvestiya. Ferrous Metallurgy 64, № 9 (2021): 619–50. http://dx.doi.org/10.17073/0368-0797-2021-9-619-650.

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This review discusses the main methods for producing spherical powder particles of corrosion-resistant steels as a material widely used in all industries. Also the examples of products made by modern additive methods are described. Currently, spherical powder particles of corrosion-resistant steels are used in the following additive methods: selective laser melting, selective laser sintering, direct laser sintering, and electron beam melting. Each of these methods has its own requirements for the characteristics of spherical powder particles of corrosion-resistant steels. The review provides a

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YILMAZ, Mustafa Safa. "A Determination of the Corrosion and Microstructure Properties of AlSi10Mg Material Produced by Different Direct Metal Laser Sintering (DMLS) Process Parameters." Bitlis Eren Üniversitesi Fen Bilimleri Dergisi 11, no. 3 (2022): 791–97. http://dx.doi.org/10.17798/bitlisfen.1102823.

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Additive Manufacturing (AM) has been developing with increasing interest in recent years. The development in this technology will accelerate with the increase in material, process, and product quality. It is therefore essential to investigate these shortcomings of additive manufacturing products. In this study, the microstructure and corrosion properties of the material (AlSi10Mg) were investigated by changing the production parameters in the Direct Metal Laser Sintering (DMLS) process. Energy density was considered in parameter selection. The corrosion, topography, and mechanical properties o

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11

Guzanová, Anna, Dagmar Draganovská, Gabriela Ižaríková, et al. "The Effect of Position of Materials on a Build Platform on the Hardness, Roughness, and Corrosion Resistance of Ti6Al4V Produced by DMLS Technology." Metals 9, no. 10 (2019): 1055. http://dx.doi.org/10.3390/met9101055.

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This article is focused on the effect of position on a build platform on the hardness, roughness and corrosion rate of parts (Ti6Al4V) produced by direct metal laser sintering (DMLS) technology. During the sintering process, the test samples were located at key positions—at the corners and in the middle of the build platform. An experimental program started with a microstructure investigation in two perpendicular directions in individual positions. The selected mechanical property—hardness—was investigated on metallographic cuts in both directions and all positions, and data sets underwent a s

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Contaldi, Vincenzo, Pasquale Corrado, Francesco Del Re, et al. "Direct metal laser sintering of Ti-6Al-4V parts with reused powder." International Journal of Advanced Manufacturing Technology 120, no. 1-2 (2022): 1013–21. http://dx.doi.org/10.1007/s00170-022-08807-y.

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AbstractTi-6Al-4V alloy is characterised by having excellent mechanical properties and corrosion resistance combined with low specific weight and biocompatibility. This material is ideal for many high-performance engineering applications. It is increasingly used in additive manufacturing (AM) thanks to the possibility of producing very complex lightweight structures, often not achievable with conventional manufacturing techniques, as well as to easily customise products according to specific customer requirements. In powder bed fusion (PBF) processes, only a small percentage of the powder is a

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Alifui-Segbaya, Frank, Jeffrey Lewis, Dominic Eggbeer, and Robert John Williams. "In vitro corrosion analyses of heat treated cobalt-chromium alloys manufactured by direct metal laser sintering." Rapid Prototyping Journal 21, no. 1 (2015): 111–16. http://dx.doi.org/10.1108/rpj-11-2012-0110.

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Purpose – The purpose of this research paper is to compare corrosion data obtained from additive-manufactured heat-treated (HRx) and non-heat-treated (NHRx) cobalt-chromium (Co–Cr) alloys. Heat treatments are indicated as necessary in complex intra-oral framework production by additive manufacturing to remove accumulated thermal stresses. However, heat treatments have been linked to corrosion in cast dental alloys. Currently, there are few publications on this subject for laser-sintered dental alloys required for academic review. Design/methodology/approach – Five rectangular specimens (n = 5)

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Yılmaz, Mustafa Safa, Gökhan Özer, Zafer Çağatay Öter, and Onur Ertuğrul. "Effects of hot isostatic pressing and heat treatments on structural and corrosion properties of direct metal laser sintered parts." Rapid Prototyping Journal 27, no. 5 (2021): 1059–67. http://dx.doi.org/10.1108/rpj-10-2020-0245.

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Purpose This paper aims to investigate the effects of various heat treatments on microstructure, hardness, porosity and corrosion properties of the parts. Design/methodology/approach Hot isostatic pressing (HIP) process, various heat treatments and their combinations were applied to the AlSi10Mg parts produced by direct laser metal sintering (DMLS). Findings It has been found that the HIP process, which is a post-processing process, reduces the amount of porosity in DMLS-AlSi10Mg material, thus improves corrosion resistance significantly. Originality/value In this study, the HIP process and su

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Kemény, Dávid Miklós, and Dóra Károly. "Corrosion Testing of Additively Manufactured Metals and Biomedical Devices." Acta Materialia Transilvanica 1, no. 2 (2018): 81–84. http://dx.doi.org/10.2478/amt-2018-0028.

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Abstract Additive manufacturing (AM) is becoming increasingly important, making it possible to produce a product in a short time, to specific individual requirements, and even in the presence of the customer. This research is related to direct metal laser sintering of additive manufacturing. This new technology is increasingly being used in more sectors, for example in biomedical industry, where a damaged product can potentially endanger human life. Corrosion tests were carried out during our research. Cyclic voltammetry curves and corrosion rates were determined with a potentiostat. Two typic

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Nkhasi, N., W. Du Preez, and H. Bissett. "Reconditioning of ti6al4v powder through an inductively coupled plasma for direct metal laser sintering." Suid-Afrikaanse Tydskrif vir Natuurwetenskap en Tegnologie 40, no. 1 (2022): 108–12. http://dx.doi.org/10.36303/satnt.2021cosaami.21.

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Ti6Al4V is commonly used in the aerospace, medical and automotive industries due to its high strength-to-weight ratio and excellent corrosion resistance properties. Interstitial impurities in Ti6Al4V powder, particularly oxygen, nitrogen, hydrogen and iron, have an impact on mechanical properties. After Ti6Al4V powder has been re-used several times in direct metal laser sintering build processes, it will eventually reach its end of life due to its physical and chemical properties deteriorating out of specification. Such powder can be reconditioned using an inductively coupled plasma system. In

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Nkhasi, N., W. Du Preez, and H. Bissett. "Reconditioning of Ti6Al4V powder through an inductively coupled plasma for direct metal laser sintering." Suid-Afrikaanse Tydskrif vir Natuurwetenskap en Tegnologie 40, no. 1 (2022): 234–38. http://dx.doi.org/10.36303/satnt.2021cosaami.43.

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Ti6Al4V is commonly used in the aerospace, medical and automotive industries due to its high strength-to-weight ratio and excellent corrosion resistance properties. Interstitial impurities in Ti6Al4V powder, particularly oxygen, nitrogen, hydrogen and iron, have an impact on mechanical properties. After Ti6Al4V powder has been re-used several times in direct metal laser sintering build processes, it will eventually reach its end of life due to its physical and chemical properties deteriorating out of specification. Such powder can be reconditioned using an inductively coupled plasma system. In

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Ziębowicz, A., A. Woźniak, B. Ziębowicz, M. Adamiak, and P. Boryło. "Microstructure and properties of CoCr alloys used in prosthetics procedure." Archives of Materials Science and Engineering 1, no. 89 (2018): 20–26. http://dx.doi.org/10.5604/01.3001.0011.5726.

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Purpose: The aim of this work was to define the influence of manufacturing technology on the chemical composition, surface topography, physicochemical and electrochemical properties of CoCr alloys obtained by casting technology and Direct Metal Laser Sintering. Design/methodology/approach: This work presents microstructural and chemical compositions obtained by scanning electron microscopy (SEM) and energy dispersive X-ray analysis (EDS). Additionally, corrosion pitting analysis and roughness measurement were conducted on the samples. Findings: On the basis of the investigations, it can be sta

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Rossi, S., F. Deflorian, and F. Venturini. "Improvement of surface finishing and corrosion resistance of prototypes produced by direct metal laser sintering." Journal of Materials Processing Technology 148, no. 3 (2004): 301–9. http://dx.doi.org/10.1016/j.jmatprotec.2003.02.001.

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Subrahmanyam, A. P. S. V. R., Kondapalli Siva Prasad, and P.Srinivasa Rao. "A Review on Mechanical and Corrosion Behaviour of DMLS Materials." Engineering Science & Technology 1, no. 2 (2020): 62–83. http://dx.doi.org/10.37256/est.122020319.

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Direct Metal Laser Sintering (DMLS) is an Additive Manufacturing (AM) technique in which the metal powder will be sintered in selected regions as per 3D CAD file in stack manner in order to produce a three dimensional object with less effort, in less possible time and with minimal wastage of metal. In this paper most widely used DMLS metal powders mechanical and corrosion properties were analyzed and the effect of post processes on the material properties were discussed. The objective of the paper is to fuse the works done so far and to identify gaps to identify the key areas of this technolog

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Brezinová, Janette, Radovan Hudák, Anna Guzanová, Dagmar Draganovská, Gabriela Ižaríková, and Juraj Koncz. "Direct Metal Laser Sintering of Ti6Al4V for Biomedical Applications: Microstructure, Corrosion Properties, and Mechanical Treatment of Implants." Metals 6, no. 7 (2016): 171. http://dx.doi.org/10.3390/met6070171.

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Cabrini, Marina, Sergio Lorenzi, Tommaso Pastore, et al. "Evaluation of corrosion resistance of Al–10Si–Mg alloy obtained by means of Direct Metal Laser Sintering." Journal of Materials Processing Technology 231 (May 2016): 326–35. http://dx.doi.org/10.1016/j.jmatprotec.2015.12.033.

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Liu, Rongzhen, Gong Chen, Yudi Qiu, et al. "Fabrication of Porous SiC by Direct Selective Laser Sintering Effect of Boron Carbide." Metals 11, no. 5 (2021): 737. http://dx.doi.org/10.3390/met11050737.

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Additive manufactured porous SiC is a promising material applied in extreme conditions characterised by high temperatures, chemical corrosion, and irradiation etc. However, residual Si’s existence deteriorates its performance and limits its application in harsh environments. In this study, B4C was introduced into the selective laser sintering process of SiC, and its effects on forming ability, pore parameters, microstructure, and phases were investigated. The results showed that when B4C was added, the processing window was enlarged. The minimum energy density was reduced from 457 J/cm2 to 214

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Żebrowski, R., and M. Walczak. "The effect of shot peening on the corrosion behaviour of Ti-6Al-4V alloy made by DMLS." Advances in Materials Science 18, no. 3 (2018): 43–54. http://dx.doi.org/10.1515/adms-2017-0040.

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AbstractAdditive Manufacturing processes are being used increasingly in the scope of medicine and dentistry. As indicated by literature data, the durability and quality of medical implants is decisively influenced by surface modification. Insufficient quality of surface finishing leads, among others, to reduced service life of applied implants and to increased number of necessary revision surgeries. Furthermore, various types of finishing processes e.g. cleaning, shot peening or abrasive techniques are suggested by the manufacturers of products made by means of DMLS processes. Due to this fact

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Tomova, Zlatina, Angelina Vlahova, Iliyana Stoeva, Yanko Zhekov, and Elena Vasileva. "Metal Ion Emission and Corrosion Resistance of 3D-Printed Dental Alloy." Open Access Macedonian Journal of Medical Sciences 10, no. D (2022): 143–47. http://dx.doi.org/10.3889/oamjms.2022.8577.

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Background: Prosthetic rehabilitation requires application of materials with different chemical, mechanical and biological properties which must provide longevity, esthetics, and safe use. Corrosion resistance and metal ion emission are the major factors defining biocompatibility of base dental alloys. Digitalization in Dentistry leads to development of new materials suitable for CAD/CAM technologies. Cobalt-chromium powder alloys are used for additive manufacturing of PFM crowns. The aim of this study is to evaluate corrosion resistance and metal ion emission of Cobalt-chromium dental a

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Clark, Courtney L., Jamie A. Stull, Timothy Gorey, and Daniel E. Hooks. "(Digital Presentation) Effects of Surface Finish on the Corrosion Performance of Additively Manufactured Metals." ECS Meeting Abstracts MA2022-01, no. 16 (2022): 1011. http://dx.doi.org/10.1149/ma2022-01161011mtgabs.

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Metal additive manufacturing (AM) is becoming a transformative technology in the manufacturing industry. The as-built surfaces produced by metal AM are very different compared to wrought material, typically resulting in very rough surfaces that have different corrosion properties. There are a large number of studies that have attempted to understand the corrosion response of metal AM. However, these studies are typically performed on materials that have been printed on a single machine. As a result, there are significant inconsistencies in the literature due to the high variability in the qual

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Kamiński, Janusz, Ryszard Sitek, Bogusława Adamczyk-Cieślak, and Krzysztof Kulikowski. "Impact of Glow-Discharge Nitriding Technology on the Properties of 3D-Printed Grade 2 Titanium Alloy." Materials 17, no. 18 (2024): 4592. http://dx.doi.org/10.3390/ma17184592.

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This study presents a comparative analysis of the corrosion resistance of nitrided layers on conventional Grade 2 titanium alloy and those produced by direct metal laser sintering (DMLS). Low-temperature glow-discharge nitriding of the tested materials was carried out using conventional glow-discharge nitriding (so-called nitriding at the cathode potential—TiN/CP) and with the use of an “active screen” (nitriding at the plasma potential—TiN/PP). The TiN + Ti2N + Ti(N) layers were characterized by their microstructure, nanohardness profile distribution, surface topography, and corrosion resista

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Gospodinov, Delyan, Stefan Dishliev, and Yosif Munev. "Experimental evaluation of mechanical strength parameters of additively manufactured food-grade AISI 316 stainless steel." Tribology and Materials 4, no. 1 (2025): 1–8. https://doi.org/10.46793/tribomat.2025.003.

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Direct metal laser sintering (DMLS) has become one of the most widely used methods for the additive manufacturing of metallic machine parts and tools. It allows the usage of all available metals and metallic alloys, enabling the production of parts with significant geometric complexity, which other technologies cannot produce. Many engineers, however, express concerns regarding the mechanical strength and reliability of items produced via DMLS. This article presents the results from an experimental evaluation of the basic strength parameters of samples of AISI 316 stainless steel, which were a

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Fathi, P., M. Rafieazad, X. Duan, M. Mohammadi, and A. M. Nasiri. "On microstructure and corrosion behaviour of AlSi10Mg alloy with low surface roughness fabricated by direct metal laser sintering." Corrosion Science 157 (August 2019): 126–45. http://dx.doi.org/10.1016/j.corsci.2019.05.032.

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Abouchenari, Aliasghar, Mohamad Javad Jalilpour, and Mohammad Reza Ahmadpour Yazdi. "Additive manufacturing of AISI 304L stainless steel: A review of processing parameters and mechanical performance." Synthesis and Sintering 4, no. 2 (2024): 87–100. http://dx.doi.org/10.53063/synsint.2024.42230.

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Additive manufacturing (AM) has become a favorable method for producing 304L stainless steel (SS) for various industrial applications, which is owing to its favorable characteristics including corrosion resistance, mechanical performance, and design flexibility. This review paper presents a comprehensive overview of the processing factors along with the mechanical performance of AM-fabricated 304L SS (AM304LSS). Firstly a discussion is provided for the fundamental principles of AM techniques that are common for processing SS304L. This includes selective laser melting (SLM), laser beam powder b

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Balaji, Bonothu, Dileep Nag Vinnakota, Vijaya Sankar V, and Srinivas Rao Pottem. "Thermal expansion and corrosion resistance of cobalt-chromium alloys fabricated by contemporary manufacturing processes. An in vitro study." Journal of Oral Research 11, no. 5 (2022): 1–12. http://dx.doi.org/10.17126/joralres.2022.058.

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In Purpose: The fabrication technique can influence the mechanical properties of Cobalt-Chromium (Co-Cr) dental alloys. Hence, the present study aims to determine the corrosion resistance and thermal expansion of alloys manufactured using three contemporary techniques. Material and Methods: A total of nine specimens of Co-Cr alloy were prepared according to ISO 22674 by each one of the three manufacturing processes (three in each process); conventional casting, direct metal laser sintering (DMLS) and milling (MIL). All these specimens were tested for coefficient of thermal expansion and corros

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Kaplan, M. A., A. D. Gorbenko, A. Yu Ivannikov, et al. "Investigation of spherical powder obtained by plasma spraying of wire from corrosion-resistant steel 03Kh17N10M2." Izvestiya. Ferrous Metallurgy 66, no. 1 (2023): 80–85. http://dx.doi.org/10.17073/0368-0797-2023-1-80-85.

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At present, powder with spherical particles from corrosion-resistant steels is used in such widespread additive methods as selective laser melting, selective laser sintering, direct laser sintering, electron beam melting, and others. Each of these methods places high demands on the characteristics of the spherical particles of stainless steel powder. This article is devoted to the production of a spherical powder by plasma spraying of a wire with diameter of 1 mm from corrosion-resistant steel 03Kh17N10M2 and the study of powder characteristics on its suitability for the use in additive method

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Lyons, Karen Swider, and Benjamin D. Gould. "Lightweight Titanium Metal Bipolar Plates for PEM Fuel Cells." Materials Science Forum 879 (November 2016): 613–18. http://dx.doi.org/10.4028/www.scientific.net/msf.879.613.

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Bipolar plates (BPPs) serve multiple roles in polymer electrolyte membrane fuel cells (PEMFCs). When assembled in a stack, they provide the structural backbone of the stack, plus serial electronic connections. They also provide gas (air and fuel) and coolant distribution pathways. Traditionally, bipolar plates have been made of carbon, but these are being replaced in favor of metal bipolar plates made of stamped foils. The Naval Research Laboratory has explored making titanium metal BPPs using 3D printing methods (direct metal laser sintering – DMLS) and superplastic forming, and then using a

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Băilă, Diana-Irinel, Răzvan Păcurar, Tom Savu, et al. "Mechanical and Wetting Properties of Ta2O5 and ZnO Coatings on Alloy Substrate of Cardiovascular Stents Manufactured by Casting and DMLS." Materials 15, no. 16 (2022): 5580. http://dx.doi.org/10.3390/ma15165580.

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In the last years, additive manufacturing technologies have been developed, especially direct metal laser sintering, and used in the dental and medical implant domains. Cardiovascular stents have evolved from bioinert, bare metal cages to biomimetic devices that promote tissue regeneration or healing. In this paper, comparisons concerning mechanical properties between Co–Cr alloy and cast 304L stainless steel were realized using FEM analysis, necessary for manufacturing cardiovascular stents by DMLS technology using Co–Cr alloy. The purpose of this paper consists of the evaluation of the conta

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Świetlicki, Aleksander, Mariusz Walczak, and Mirosław Szala. "Effect of shot peening on corrosion resistance of additive manufactured 17-4PH steel." Materials Science-Poland 40, no. 3 (2022): 135–51. http://dx.doi.org/10.2478/msp-2022-0038.

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Abstract Components produced by additive manufacturing (AM) via direct metal laser sintering (DMLS) have typical as-fabricated surface defects. As a result, surface properties of AM products should be modified to increase their strength, anti-wear behavior, and at the same time ensure their high corrosion resistance. Surface modification via shot peening (SP) is considered suitable for AM of engineering devices made of 17-4PH (X5CrNiCuNb16-4) stainless steel. The objective of this study was to determine the effect of three types of peening media (CrNi steel shot, glass, and ceramic beads) on t

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Kajzer, Wojciech, Gabriela Wielgus, and Anita Kajzer. "Mechanical and Physicochemical Properties of Ti6Al4V Alloy After Plastic Working and 3D Printing Intended for Orthopedics Implants." Applied Sciences 14, no. 23 (2024): 11181. https://doi.org/10.3390/app142311181.

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The aim of this study was to compare the mechanical and physicochemical properties of Ti6Al4V alloy samples produced using 3D printing (Direct Metal Laser Sintering) and bar after plastic working. Both sets of samples were subjected to various surface-processing methods, including sandblasting, heat treatment (hardening for 120 min at 820 ± 10 °C, followed by cooling to room temperature), mechanical polishing, and steam sterilization. This research included macroscopic surface evaluation before and after pitting corrosion resistance tests, metallographic microscopic research, scanning electron

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Prieto, Claudia, Marc Singer, Timothy Cyders, and David Young. "Investigation of Pitting Corrosion Initiation and Propagation of a Type 316L Stainless Steel Manufactured by the Direct Metal Laser Sintering Process." CORROSION 75, no. 2 (2018): 140–43. http://dx.doi.org/10.5006/3075.

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Walczak, Mariusz, Wojciech Okuniewski, Wojciech J. Nowak, Dariusz Chocyk, and Kamil Pasierbiewicz. "Corrosion Behavior of Shot Peened Ti6Al4V Alloy Fabricated by Conventional and Additive Manufacturing." Materials 18, no. 10 (2025): 2274. https://doi.org/10.3390/ma18102274.

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Ti6Al4V titanium alloy is one of the most studied for its properties after additive manufacturing. Due to its widely use in medical applications, its properties are investigated in various aspects of surface layer property improvement and later compared to conventionally manufactured Ti-6Al-4V. In this study, the corrosion behavior in a 0.9% NaCl solution of shot peened Ti-6Al-4V prepared using direct metal laser sintering (DMLS) was examined using corrosion electrochemical testing and compared with conventionally forged titanium alloy. Shot peening was performed on previously polished samples

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Sitek, Ryszard, Krzysztof Kulikowski, Krystian Paradowski, et al. "Influence of Ion Nitriding on Microstructure and Properties of Haynes 282 Nickel Superalloy Specimens Produced Using DMLS Technique." Materials 16, no. 14 (2023): 5020. http://dx.doi.org/10.3390/ma16145020.

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The paper investigates the influence of the ion-nitriding process on the microstructure, corrosion resistance, and tensile strength at elevated temperatures of Haynes 282 nickel superalloy specimens produced by the Direct Metal Laser Sintering (DMLS) technique. The study was performed for two conditions, i.e., as-built by DMLS method and as-built by DMLS method + covered by a layer containing CrN + Cr2N phases. An analysis of the surface morphology revealed that the ion-nitriding process significantly affects the physical and chemical phenomena occurring on the specimen’s surface. The XRD meas

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Acquesta, Annalisa, and Tullio Monetta. "As-Built EBM and DMLS Ti-6Al-4V Parts: Topography–Corrosion Resistance Relationship in a Simulated Body Fluid." Metals 10, no. 8 (2020): 1015. http://dx.doi.org/10.3390/met10081015.

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Machined devices made of titanium or titanium alloys are widely used in biomedical applications. Recently, additive manufacturing technologies (AM) were proposed to reduce the cost of parts and customise their shape. While several researchers have studied the characterisation of the machined surfaces of AM products, less attention has been focused on the study of the surfaces of as-produced parts. The aim of this study was to compare the surface and bulk properties of Ti-6Al-4V alloy products obtained using two types of AM—i.e., electron beam melting and direct metal laser sintering—in compari

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Özer, Gökhan, Gürkan Tarakçi, Mustafa S. Yilmaz, et al. "Investigation of the effects of different heat treatment parameters on the corrosion and mechanical properties of the AlSi10Mg alloy produced with direct metal laser sintering." Materials and Corrosion 71, no. 3 (2019): 365–73. http://dx.doi.org/10.1002/maco.201911171.

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Özer, Gökhan, and Ahmet Karaaslan. "A Study on the Effects of Different Heat‐Treatment Parameters on Microstructure–Mechanical Properties and Corrosion Behavior of Maraging Steel Produced by Direct Metal Laser Sintering." steel research international 91, no. 10 (2020): 2000195. http://dx.doi.org/10.1002/srin.202000195.

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Shahbazi Farahani, Fatemeh, Michele Ferri, Liberato Manna, and Diego Colombara. "Porous Cu-W Alloy Fabrication via Direct and Pulsed Current Co-Electrodeposition." ECS Meeting Abstracts MA2025-01, no. 23 (2025): 1436. https://doi.org/10.1149/ma2025-01231436mtgabs.

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Fabricating by growing electro-active species on conductive substrates improves active site exposure without needing binders. Electro-deposition, a cost-effective method, enables in-situ deposition of non-precious metal catalysts on substrates like carbon paper and nickel foam. This approach enhances activity and stability for reactions such as hydrogen evolution, oxygen evolution, and CO₂ reduction.1 This research presents the first confirmed synthesis of a tungsten–copper (Cu–W) alloy via pulsed galvanic electrodeposition. According to previous studies, tungsten could not be deposited in pur

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Grünberger, Thomas, and Robert Domröse. "Direct Metal Laser Sintering." Laser Technik Journal 12, no. 1 (2015): 45–48. http://dx.doi.org/10.1002/latj.201500007.

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Walczak, Mariusz, Aleksander Świetlicki, Mirosław Szala, Marcin Turek, and Dariusz Chocyk. "Shot Peening Effect on Sliding Wear in 0.9% NaCl of Additively Manufactured 17-4PH Steel." Materials 17, no. 6 (2024): 1383. http://dx.doi.org/10.3390/ma17061383.

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The growing demand for modern steels showing corrosion and tribological resistance has led to their increased use in the production of medical devices. This study analyzed the effect of shot peening on wear resistance in 0.9% NaCl solution of 17-4PH steel produced by direct laser metal sintering (DMLS) technology. The study’s novelty relies on revealing the effect of shot peening (SP) surface treatment on the wet sliding wear resistance of 17-4PH steel produced with DMLS. Moreover, in the context of 17-4PH steel application for medical devices, the 0.9% NaCl tribological environment were selec

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Venkatesh, K. Vijay, and V. Vidyashree Nandini. "Direct Metal Laser Sintering: A Digitised Metal Casting Technology." Journal of Indian Prosthodontic Society 13, no. 4 (2013): 389–92. http://dx.doi.org/10.1007/s13191-013-0256-8.

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Mierzejewska, Ż. A. "Process Optimization Variables for Direct Metal Laser Sintering." Advances in Materials Science 15, no. 4 (2015): 38–51. http://dx.doi.org/10.1515/adms-2015-0021.

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AbstractManufacturing is crucial to creation of wealth and provision of quality of life. Manufacturing covers numerous aspects from systems design and organization, technology and logistics, operational planning and control. The study of manufacturing technology is usually classified into conventional and non-conventional processes. As it is well known, the term "rapid prototyping" refers to a number of different but related technologies that can be used for building very complex physical models and prototype parts directly from 3D CAD model. Among these technologies are selective laser sinter

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Ebersold, Zoran, Nebojsa Mitrovic, Slobodan Djukic, Branka Jordovic, and Aleksandar Peulic. "Defectoscopy of direct laser sintered metals by low transmission ultrasonic frequencies." Science of Sintering 44, no. 2 (2012): 177–85. http://dx.doi.org/10.2298/sos1202177e.

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This paper focuses on the improvement of ultrasonic defectoscopy used for machine elements produced by direct laser metal sintering. The direct laser metal sintering process introduces the mixed metal powder and performs its subsequent laser consolidation in a single production step. Mechanical elements manufactured by laser sintering often contain many hollow cells due to weight reduction. The popular pulse echo defectoscopy method employing very high frequencies of several GHz is not successful on these samples. The aim of this paper is to present quadraphonic transmission ultrasound defecto

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Bakheet Jasim, Hasan, and Basim Abdulkareem Farhan. "Practical analysis of direct metal laser sintering process." Materials Today: Proceedings 45 (2021): 5469–75. http://dx.doi.org/10.1016/j.matpr.2021.02.138.

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Kang, Hyun Goo, Toshiko Osada, and Hideshi Miura. "Density Gradient Materials by Direct Metal Laser Sintering." Advanced Materials Research 89-91 (January 2010): 281–84. http://dx.doi.org/10.4028/www.scientific.net/amr.89-91.281.

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The direct metal laser sintering process was applied to produce density gradient materials of stainless steel 316L. In order to understand the mechanism of forming porous structure, the influence of laser power, scan rate and scan pitch on the porosity were investigated by measuring density of produced samples and observing cross-sectional microstructures. Laser power greatly affected to the porosity by forming clusters of melted metal powders. It was found that the size change of clusters plays a role in forming porous structure. Eventually, three dimensional sample owing density gradient str

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