Surface Characteristics and Corrosion Properties of Co-Cr Dental Alloys Processed by Laser-based Methods

Porojan, Liliana; Birdeanu, Mihaela; Savencu, Cristina; Porojan, Sorin

Liliana Porojan, Mihaela Birdeanu, Cristina Savencu, Sorin Porojan

Surface Characteristics and Corrosion Properties of Co-Cr Dental Alloys Processed by Laser-based Methods

Abstract:

Technological developments have led to the implementation of novel digitalized manufacturing methods for the production of metallic structures in prosthetic dentistry, less studied to date. The objective of the study was to assess the morphological characteristics and corrosion properties of selective laser sintered (SLS) and selective laser melted (SLM) cobalt-chromium (Co-Cr) dental alloys related to the surface processing and pH variations. For the experimental analyses metallic specimens made of Co-Cr dental alloys were prepared using SLS and SLM, as indicated by the manufacturers. The morphology and the topography of the samples were investigated by scanning electron microscopy and atomic force microscopy. Electrochemical measurements were made and the values for corrosion potential (Ecorr), corrosion current (icorr) and corrosion rate were calculated. The immanent advantages of additive technologies are accompanied by porosities resulted after the deposition of the fine metallic powder, especially for the SLM method. Considering the corrosion current density value a parameter which provides information on the kinetics of the corrosion process, SLS samples showed better performance under pH variations. Surface processing can result in an improvement in the corrosion performance also for extreme pH values. Given that the microstructure and corrosion behavior was significantly different, further differences in the clinical behavior of prosthetic restorations manufactured using SLS and SLM additive techniques are anticipated.

Keywords:
dental alloys; additive manufacturing; surface morphology; corrosion

Issue: 2017, Volume 68, Issue 11

Pages: 2538-2541

Publication date: 2017/12/15

https://doi.org/10.37358/RC.17.11.5923

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This article is published under the Creative Commons Attribution 4.0 International License

Citation Styles

Cite this article as:
POROJAN, L., BIRDEANU, M., SAVENCU, C., POROJAN, S., Surface Characteristics and Corrosion Properties of Co-Cr Dental Alloys Processed by Laser-based Methods, Rev. Chim., 68(11), 2017, 2538-2541.

Vancouver
Porojan L, Birdeanu M, Savencu C, Porojan S. Surface Characteristics and Corrosion Properties of Co-Cr Dental Alloys Processed by Laser-based Methods. Rev. Chim.[internet]. 2017 Nov;68(11):2538-2541. Available from: https://doi.org/10.37358/RC.17.11.5923

APA 6th edition
Porojan, L., Birdeanu, M., Savencu, C. & Porojan, S. (2017). Surface Characteristics and Corrosion Properties of Co-Cr Dental Alloys Processed by Laser-based Methods. Revista de Chimie, 68(11), 2538-2541. https://doi.org/10.37358/RC.17.11.5923

Harvard
Porojan, L., Birdeanu, M., Savencu, C., Porojan, S. (2017). 'Surface Characteristics and Corrosion Properties of Co-Cr Dental Alloys Processed by Laser-based Methods', Revista de Chimie, 68(11), pp. 2538-2541. https://doi.org/10.37358/RC.17.11.5923

IEEE
L. Porojan, M. Birdeanu, C. Savencu, S. Porojan, "Surface Characteristics and Corrosion Properties of Co-Cr Dental Alloys Processed by Laser-based Methods". Revista de Chimie, vol. 68, no. 11, pp. 2538-2541, 2017. [online]. https://doi.org/10.37358/RC.17.11.5923

Text
Liliana Porojan, Mihaela Birdeanu, Cristina Savencu, Sorin Porojan,
Surface Characteristics and Corrosion Properties of Co-Cr Dental Alloys Processed by Laser-based Methods,
Revista de Chimie,
Volume 68, Issue 11,
2017,
Pages 2538-2541,
ISSN 2668-8212,
https://doi.org/10.37358/RC.17.11.5923.
(https://revistadechimie.ro/Articles.asp?ID=5923)
Keywords: dental alloys; additive manufacturing; surface morphology; corrosion

RIS
TY - JOUR
T1 - Surface Characteristics and Corrosion Properties of Co-Cr Dental Alloys Processed by Laser-based Methods
A1 - Porojan, Liliana
A2 - Birdeanu, Mihaela
A3 - Savencu, Cristina
A4 - Porojan, Sorin
JF - Revista de Chimie
JO - Rev. Chim.
PB - Revista de Chimie SRL
SN - 2668-8212
Y1 - 2017
VL - 68
IS - 11
SP - 2538
EP - 2541
UR - https://doi.org/10.37358/RC.17.11.5923
KW - dental alloys
KW - additive manufacturing
KW - surface morphology
KW - corrosion
ER -

BibTex
@article{RevCh2017P2538,
author = {Porojan Liliana and Birdeanu Mihaela and Savencu Cristina and Porojan Sorin},
title = {Surface Characteristics and Corrosion Properties of Co-Cr Dental Alloys Processed by Laser-based Methods},
journal = {Revista de Chimie},
volume = {68},
number = {11},
pages = {2538-2541},
year = {2017},
issn = {2668-8212},
doi = {https://doi.org/10.37358/RC.17.11.5923},
url = {https://revistadechimie.ro/Articles.asp?ID=5923}
}

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