John Henao

IQE (United Kingdom)

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Carlos A. Poblano-Salas

Tecnologie Avanzate (Italy)

Jorge Corona‐Castuera

Tecnologie Avanzate (Italy)

Astrid L. Giraldo-Betancur

Center for Research and Advanced Studies of the National Polytechnic Institute

D.G. Espinosa-Arbeláez

Center for Engineering and Industrial Development

O. Sotelo-Mazón

Universidad Autónoma del Estado de México

L. Martínez-Gómez

Universidad Nacional Autónoma de México

Paola Forero

Universidad Tecnológica de Querétaro

A. Concustell

Forest Science and Technology Centre of Catalonia

J.M. Guilemany

Universitat de Barcelona

Oscar Sotelo

Universidad Nacional Autónoma de México

Cooperative Institutions

Universidad Nacional Autónoma de México

Universidad Autónoma del Estado de Morelos

Instituto Politécnico Nacional

Center for Research and Advanced Studies of the National Polytechnic Institute

Polytechnic University of Queretaro

IQE (United Kingdom)

Consejo Nacional de Humanidades, Ciencias y Tecnologías

Center for Engineering and Industrial Development

Universidad de Antioquia

Universitat de Barcelona

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On the manufacturability of Inconel 718 thin-walled honeycomb structures by laser powder bed fusion

Rapid Prototyping Journal (2021)

José M. Zea Pérez Jorge Corona‐Castuera Carlos A. Poblano-Salas John Henao Arturo Hernández Hernández

Purpose The purpose of this paper is to study the effects of printing strategies and processing parameters on wall thickness, microhardness and compression strength of Inconel 718 superalloy thin-walled honeycomb lattice structures manufactured by laser powder bed fusion (L-PBF). Design/methodology/approach Two printing contour strategies were applied for producing thin-walled honeycomb lattice structures in which the laser power, contour path, scanning speed and beam offset were systematically modified. The specimens were analyzed by optical microscopy for dimensional accuracy. Vickers hardness and quasi-static uniaxial compression tests were performed on the specimens with the least difference between the design wall thickness and the as built one to evaluate their mechanical properties and compare them with the counterparts obtained by using standard print strategies. Findings The contour printing strategies and process parameters have a significant influence on reducing the fabrication time of thin-walled honeycomb lattice structures (up to 50%) and can lead to improve the manufacturability and dimensional accuracy. Also, an increase in the young modulus up to 0.8 times and improvement in the energy absorption up to 48% with respect to those produced by following a standard strategy was observed. Originality/value This study showed that printing contour strategies can be used for faster fabrication of thin-walled lattice honeycomb structures with similar mechanical properties than those obtained by using a default printing strategy.

Inconel

Inconel 625

Honeycomb structure

10.1108/rpj-04-2021-0098

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Citations (3)

Bio-active glass coatings manufactured by thermal spray: a status report

Journal of Materials Research and Technology (2019)

John Henao Carlos A. Poblano-Salas Mónica Monsalve Jorge Corona‐Castuera Oscar Barceinas-Sanchez

Superficial modification of implants via the incorporation of biocompatible coatings is an attractive option in biomedicine because of the positive attributes associated with bioactive materials. Bioactive glasses are an important subset of biomaterials that are known to stimulate bone regeneration; they are interesting materials that can be employed as bioactive coatings due to their unique response in physiological environments. Numerous clinical case histories and scientific studies have focused on successful examples of bioactive glasses being used in-vitro and in-vivo. However, unlike other biomaterials such as hydroxyapatite, bioactive glasses have not yet reached full potential as thermally sprayed coatings. The lack of fundamental research focused on establishing correlations between the available bioactive glass chemical compositions, the processing parameters selected for specific thermal spray processes, and the obtained coating performance has limited the use of bioactive glass compositions as reliable coatings. This paper reviews the current state of the art of thermally sprayed bioactive glass coatings; it looks at different studies dealing with thermally sprayed bioactive glass coatings in order to identify their strengths and weaknesses and provides key scientific points that could be explored in future investigations. This manuscript includes a brief introduction to bioactive glasses, an overview of thermal spraying techniques and current products, and a discussion of recent developments in this field.

Bioactive Glass

Biocompatible material

10.1016/j.jmrt.2019.07.011

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Citations (62)

Principles and Applications of Thermal Spray Coatings

Advances in chemical and materials engineering book series (2020)

John Henao Carlos A. Poblano-Salas Fabio Vargas Astrid L. Giraldo-Betancur Jorge Corona‐Castuera

The goal of the chapter is to address the fundamental theory of thermal spraying and its modern industrial applications, in particular, those involving flame spray, HVOF, plasma spray, and cold spray processes. During the last 30 years, thousands of manuscripts and various book chapters have been published in the field of thermal spray, displaying the evolution of thermally sprayed coatings in many industrial applications. Thermal spray coatings are currently interesting for different modern applications including prosthesis, thermal barriers, electrochemical catalysis, electrochemical energy conversion devices, biofouling, and self-repairing surfaces. The chapter will explain the fundamental principles of the aforementioned thermal spraying processes and discuss the effect of different controlling parameters on the final properties of the produced coatings. This chapter will also explore current and future industrial applications of thermal spray coatings.

Biofouling

10.4018/978-1-7998-4870-7.ch002

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Citations (11)

Bio-Piezoelectric Ceramic Coatings for Bone Tissue Engineering Applications

Advances in chemical and materials engineering book series (2024)

John Henao Astrid L. Giraldo-Betancur Adriana C. Flores‐Gallegos Andrea Yamile Resendiz Mancilla Carlos A. Poblano-Salas

This chapter is focused on describing the latest advances related to the development of bio-piezoelectric coatings for bone regeneration applications. It starts with the description of the main concepts about bioelectrical phenomena in the human body and its role in the regeneration of bone. It explains concepts such as dielectric and electrical responses that includes piezoelectricity, pyroelectricity, and ferroelectricity and how the human bone can present these types of phenomena. The chapter also includes the definition of bio-ceramic materials and bioactive coatings, and a summary of the main bio-ceramic coatings employed nowadays for applications in bone tissue regeneration. Also, this chapter includes a review of the latest advances in the development of bio-piezoelectric coatings for bone tissue engineering and future perspectives on this topic. Overall, this chapter is focused on reviewing comprehensively the electrical response of natural tissues and the relevance of bio-piezoelectric ceramics for bone tissue regeneration.

10.4018/979-8-3693-7505-1.ch012

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Evaluation of Corrosion Inhibition of 1018 Carbon Steel using an Avocado Oil-Based Green Corrosion Inhibitor

Protection of Metals and Physical Chemistry of Surfaces (2020)

O. Sotelo-Mazón Benjamín Valdez J. Porcayo-Calderón John Henao C. Cuevas-Arteaga

Corrosion inhibitor

Carbon steel

Brine

Langmuir adsorption model

10.1134/s2070205120020240

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Citations (13)

HVOF Hydroxyapatite/Titania-Graded Coatings: Microstructural, Mechanical, and In Vitro Characterization

Journal of Thermal Spray Technology (2018)

John Henao M. Cruz-bautista J. Hincapie-Bedoya Benjamín Ortega-Bautista Jorge Corona‐Castuera

Simulated body fluid

Indentation

Bioceramic

10.1007/s11666-018-0811-2

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Citations (27)

On the Deposition of Cold-Sprayed Hydroxyapatite Coatings

John Henao Astrid L. Giraldo-Betancur Carlos A. Poblano-Salas Paola Forero D.G. Espinosa-Arbeláez

Cold spraying is a well-established coating fabrication method for metals onto metallic substrates. Over the past decade, there has been a growing interest in its application as a deposition technique for hydroxyapatite (HAp) coatings due to its lower processing temperatures compared to conventional coating manufacturing techniques. HAp coatings are ceramic coatings employed in biomedicine for their biocompatibility and osteoconductive properties. The deposition of ceramic coatings using cold spraying remains a challenge due to the brittle nature of these materials when subjected to high-velocity solid-state impacts. In the present study, HAp deposits were produced via low-pressure cold spraying onto 316 stainless steel under various processing conditions to induce different energy states upon impact and elicit distinct responses in the deposited material. The morphology of the deposited HAp particles was examined after single-track experiments to comprehend the characteristics of the particles adhering to the substrate surface after each experiment. The study was supplemented with impact energy calculations, which allowed the establishment of processing windows to form HAp deposits and coatings. A cold-sprayed HAp coating was successfully obtained within the suggested range of experimental conditions based on energy calculations.

Deposition

10.2139/ssrn.4596738

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Additive manufactured gyroid-based cell structures under compression: design, testing and simulation for biomedical applications

Computer Methods in Biomechanics & Biomedical Engineering (2023)

Juan Carlos Castro-Sandoval Alfredo Chávez Jorge Corona‐Castuera John Henao Marco Antonio Rivera-Gil

The mechanical behaviour of a DMLS Ti-6Al-4V gyroid-based cellular structure (CS), with potential application in the fabrication of implants, was studied under compressive conditions. The influence of the CS volumetric fraction on the elastic modulus was experimentally evaluated in cubic and cylindrical samples. The experimental results showed that the selected parameters allowed approximating the mechanical behaviour of the CS to that of trabecular bone. Finite element analysis was employed to study the mechanical behaviour of the CS. The model presented a good approximation of the experimental results, being useful to predict the mechanical behaviour of the CS.

Gyroid

Mechanical compression

10.1080/10255842.2023.2179366

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Citations (2)

Corrosion protection of 1018 carbon steel using an avocado oil-based inhibitor

Green Chemistry Letters and Reviews (2019)

O. Sotelo-Mazón Benjamín Valdez J. Porcayo-Calderón M. Casales-Díaz John Henao

The corrosion phenomenon in oil and gas industry is a serious issue affecting metallic structures and pipelines. The main aggressive species flowing through oil pipelines is NaCl. The presence of gases in the corrosive medium (CO2 and H2S), increases, even more, its aggressiveness. Usually, to mitigate corrosion, liquid inhibitors are added to the corrosive medium. In the present study, N-hydroxyethyl-imidazoline derivatives of avocado oil was synthesized as a green corrosion inhibitor. The test was performed on 1018 carbon steel at 5, 10, 25, 50 and 100 ppm. Electrochemical techniques as polarization curves (PC), the open circuit potential (OCP), the lineal polarization resistance (LPR) and the electrochemical impedance spectroscopy (EIS) were applied. The results obtained from the OCP indicates that the inhibitor can be classified as a cathodic type one. On the one hand, PC, RPL and EIS determined that the highest corrosion rate was obtained without the inhibitor. On the other hand, by adding inhibitor, the corrosion resistance increased, obtaining the optimal concentration at 10 ppm. The EIS technique in the angle phase format showed the formation of two time constants, which indicates the inhibitor presence. Finally, the SEM analyses showed a minor attack at 5 and 10 ppm.

Corrosion inhibitor

Carbon steel

Carbon fibers

10.1080/17518253.2019.1629698

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Citations (19)

Multilayered Coatings by Thermal Spray for High-Temperature Applications

Engineering materials (2023)

John Henao Marco Antonio Rivera-Gil Carlos A. Poblano-Salas D.G. Espinosa-Arbeláez G. Trápaga

Temperature cycling

10.1007/978-3-031-40809-0_6

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Citations (1)