Next Article in Journal
A Review: Effect of Friction Stir Welding on Microstructure and Mechanical Properties of Magnesium Alloys
Next Article in Special Issue
Mechanical Properties of Stainless-Steel Structures Fabricated by Composite Extrusion Modelling
Previous Article in Journal
Thermal Growth Cu1.2Mn1.8O4 Spinel Coatings on Metal Interconnects for Solid Oxide Fuel Cell Applications
Article Menu
Issue 12 (December) cover image

Export Article

Open AccessArticle
Metals 2017, 7(12), 521;

Permeability Study of Austenitic Stainless Steel Surfaces Produced by Selective Laser Melting

Tecnologico de Monterrey, Escuela de Ingeniería y Ciencias, Avenida Eugenio Garza Sada #2501 Sur, Monterrey, Nuevo Leon 64849, Mexico
Laboratorio Nacional de Manufactura Aditiva, Digitalización 3D y Tomografía Computarizada, MADiT, Centro de Ciencias Aplicadas y Desarrollo Tecnológico (CCADET), Universidad Nacional Autónoma de México (UNAM), Circuito Exterior S/N, Ciudad Universitaria AP 70-186, Ciudad de México 04510, Mexico
Department of Engineering Technology, University of North Texas, 3940 North Elm Street, Denton, TX 76207, USA
Author to whom correspondence should be addressed.
Received: 20 October 2017 / Revised: 6 November 2017 / Accepted: 17 November 2017 / Published: 24 November 2017
(This article belongs to the Special Issue Metallic Additive Manufacturing: Design, Process and Post-processing)
Full-Text   |   PDF [3859 KB, uploaded 27 November 2017]   |  


Selective laser melting (SLM) is emerging as a versatile process for fabricating different metal components with acceptable mechanical properties and geometrical accuracy. The process has been used in the manufacturing of several parts (e.g., aerospace or biomedical components), and offers the capability to tailor the performance of several surface and mechanical properties. In this work, permeability properties and surface roughness of stainless steel (SS316L) surfaces were evaluated through experimentation with three different laser scanning patterns (chessboard, meander, and stripe), and different sloping angles between the fabricated surface and the laser beam incident on the process. Results showed that for each scanning pattern, the roughness decreased as the sloping angle increased consistently in all experimental trials. Furthermore, in the case of the permeability evaluation, the manufactured surfaces showed changes in properties for each series of experiments performed with different scanning patterns. The chessboard pattern showed a change of 67° to 107° in contact angle, while the meander and stripe patterns showed a variation in contact angle in a range of 65° to 85°. The different scanning strategies in the SLM process resulted in an alternative method for surface enhancement with different hydrophobicity properties, valuable for designing the most appropriate permeability characteristics for specific applications. View Full-Text
Keywords: selective laser melting; stainless steel; surface quality; permeability selective laser melting; stainless steel; surface quality; permeability

Graphical abstract

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).

Share & Cite This Article

MDPI and ACS Style

Segura-Cardenas, E.; Ramirez-Cedillo, E.G.; Sandoval-Robles, J.A.; Ruiz-Huerta, L.; Caballero-Ruiz, A.; Siller, H.R. Permeability Study of Austenitic Stainless Steel Surfaces Produced by Selective Laser Melting. Metals 2017, 7, 521.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics



[Return to top]
Metals EISSN 2075-4701 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top