Direct metal laser sintering (DMLS) is an additive manufacturing process that utilizes a laser to sinter powdered metal to make geometrically complex parts. However, components made by DMLS are believed to be more vulnerable to corrosion due to the presence of residual porosity, as well as laser-induced microstructural deformations. This research focuses on the evaluation of the pitting corrosion resistance of Type 316L stainless steel manufactured using DMLS. The microstructure of the DMLS samples was also compared to specimens annealed to eliminate laser induced scan tracks. Profilometry, compositional analysis, and quantification of the corrosion resistance were performed, before and after the corrosion pitting resistance test, per ASTM G48 Method A (ferric chloride pitting test).
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1 February 2019
Research Article|
December 14 2018
Investigation of Pitting Corrosion Initiation and Propagation of a Type 316L Stainless Steel Manufactured by the Direct Metal Laser Sintering Process Available to Purchase
Claudia Prieto;
*Institute for Corrosion and Multiphase Technology, Dept. of Chemical and Biochemical Eng., Ohio University, 342 W State St., Athens, OH 45701.
‡Corresponding author. E-mail: [email protected].
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Marc Singer;
Marc Singer
*Institute for Corrosion and Multiphase Technology, Dept. of Chemical and Biochemical Eng., Ohio University, 342 W State St., Athens, OH 45701.
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Timothy Cyders;
Timothy Cyders
**Dept. of Mechanical Eng., Ohio University, Athens, OH 45701.
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David Young
David Young
‡
*Institute for Corrosion and Multiphase Technology, Dept. of Chemical and Biochemical Eng., Ohio University, 342 W State St., Athens, OH 45701.
‡Corresponding author. E-mail: [email protected].
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‡Corresponding author. E-mail: [email protected].
Recipient of first place in the Mars Fontana Corrosion Engineering category in the Student Poster Session at CORROSION 2018, April 2018, Phoenix, Arizona.
Online ISSN: 1938-159X
Print ISSN: 0010-9312
© 0000, NACE International
2019
CORROSION (2019) 75 (2): 140–143.
Citation
Claudia Prieto, Marc Singer, Timothy Cyders, David Young; Investigation of Pitting Corrosion Initiation and Propagation of a Type 316L Stainless Steel Manufactured by the Direct Metal Laser Sintering Process. CORROSION 1 February 2019; 75 (2): 140–143. https://doi.org/10.5006/3075
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