Sliding Wear Characteristics and Corrosion Behaviour of Selective Laser Melted 316L Stainless Steel

Sun, Yong; Moroz, Adam; Alrbaey, K.

doi:10.1007/s11665-013-0784-8

Cited by 219 publications

(115 citation statements)

References 33 publications

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“…Corrosion resistance of stainless steels obtained by SLM reducing is explained by pores presence [4][5][6], segregation, cast structure or residual stresses [4,[6][7][8][9].…”

Section: Discussionmentioning

confidence: 99%

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Development of new approaches to the study of pitting corrosion resistance of stainless steels obtained by selective laser melting

et al. 2019

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This paper presents the results of comparative corrosion resistance studies of stainless steels manufactured by selective laser melting (SLM) in the initial state with subsequent heat treatment and machining. Pitting corrosion tests are carried out, according to ASTM G48 method A in 10% FeCl3·6H2O solution at elevated temperature and exposure time for 5h. The studies were performed on the AISI 321 and AISI 316L stainless steels manufactured by SLM. It was obtained that laser scanning speed decrease led to density rise by other SLM parameters being equal. Porosity affected to the stainless steel corrosion behaviour significant. Metal density decrease resulted to corrosion rate rise. Microstructure examination showed that pitting corrosion development depended on surface steel condition.

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“…Corrosion resistance of stainless steels obtained by SLM reducing is explained by pores presence [4][5][6], segregation, cast structure or residual stresses [4,[6][7][8][9].…”

Section: Discussionmentioning

confidence: 99%

“…Meanwhile the pores influence the most effect on corrosion damage. Process parameters (laser scanning speed, power, spot size diameter, hatch distance, powder layer thickness) impact on the material density [6,10,11]. Although theirs changes do not remove pores fully [12].…”

Section: Fig 3 Scanning Speed Influence On Porosity Of Sl-melted Stmentioning

confidence: 99%

Development of new approaches to the study of pitting corrosion resistance of stainless steels obtained by selective laser melting

et al. 2019

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“…Up to now, SLM has been reported to be successfully applied in fabricating functional metallic components, including titanium-based, nickel-based and stainless steel parts (Thijs et al 2010, Sun et al 2014, Jia and Gu 2014. Because of its layer-by-layer shaping philosophy, SLM can fabricate complicated components that will be difficult to produce using traditional technologies.…”

Section: Introductionmentioning

confidence: 99%

System development, formability quality and microstructure evolution of selective laser-melted magnesium

Yang

Lin

et al. 2016

Virtual and Physical Prototyping

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2016) System development, formability quality and microstructure evolution of selective laser-melted magnesium, Virtual and Physical Prototyping, 11:3, 173-181, ABSTRACT A selective laser melting (SLM) system, which consisted of a fibre laser, a three-dimensional motion platform and a motion control system, was developed in this study. The effect of process parameters on the microstructure evolution of SLMed magnesium parts was investigated. The results revealed that under an irradiation of laser energy density <3.0 J/mm, the powder remained in the discrete state. At a laser energy density 3.0-6.0 J/mm, the powder partially melted and sintered together, yielding incompact tracks. As the energy density increased to 6.0-12.0 J/mm, the powder fully melted forming continuous and smooth tracks. With a further increase in the laser energy density evaporation of the powder occurred. Dense magnesium parts free of pores and cracks were successfully fabricated with the optimal energy density of 10.0 J/mm. The immersion experiment revealed that the degradation product was mainly consisted of Mg(OH) 2 , which slowed down the degradation rate acting as a protective layer. ARTICLE HISTORY

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“…The process has been successfully demonstrated [6] to manufacture 316L SS parts. Some investigation about the mechanical properties and corrosion resistance of 316L SS parts has been reported [9,10]. However, the release of potential toxic ions such as Cr, Ni and Mo, in 316L parts manufactured via the SLM route, prevents its use for applications in dental prostheses, which also increases risks to patient health.…”

Section: Introductionmentioning

confidence: 99%

Investigation into Effects of Scanning Speed on in Vitro Biocompatibility of Selective Laser Melted 316L Stainless Steel Parts

et al. 2017

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Abstract. In recent years, selective laser melting (SLM) has gained an important place in fabrication due to their strong individualization which cannot be manufactured using conventional processes such as casting or forging. By proper control of the SLM processing parameters, characteristics of the alloy can be optimized. In the present work, 316L stainless steel (SS), as a widely used biomedical material, is investigated in terms of the effects of scanning speed on in vitro biocompatibility during SLM process. Cytotoxicity assay is adopted to assess the in vitro biocompatibility. The results show the scanning speed strongly affects the in vitro biocompatibility of 316L SS parts and with prolongs of incubation time, the cytotoxicity increase and the in vitro biocompatibility gets worse. The optimal parameters are determined as follows: scanning speed of 900 mm/s, laser power of 195 W, hatch spacing of 0.09 mm and layer thickness of 0.02 mm. The processing parameters lead to the change of surface morphology and microstructures of samples, which can affect the amount of toxic ions release, such as Cr, Mo and Co, that can increase risks to patient health and reduce the biocompatibility.

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Sliding Wear Characteristics and Corrosion Behaviour of Selective Laser Melted 316L Stainless Steel

Cited by 219 publications

References 33 publications

Development of new approaches to the study of pitting corrosion resistance of stainless steels obtained by selective laser melting

Development of new approaches to the study of pitting corrosion resistance of stainless steels obtained by selective laser melting

System development, formability quality and microstructure evolution of selective laser-melted magnesium

Investigation into Effects of Scanning Speed on in Vitro Biocompatibility of Selective Laser Melted 316L Stainless Steel Parts

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