Modificación superficial de un acero AISI SAE 1045 mediante la implantación de iones de nitrógeno y titanio

Niño, Ely Dannier Valbuena; Salinas, Deicy Viviana; Ballesteros, Darío Yesid Peña; Chinchilla, Luisa Fernanda

doi:10.15332/iteckne.v8i1.259

Cited by 5 publications

(3 citation statements)

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“…Other 3DII studies have found a direct correlation between the treatment time and the implantation dose, reporting better corrosive behavior at higher doses due to the effect of the concentration of the implanted species (Valbuena-Niño et al, 2020;. The findings in the LPR measurements agree with other works (Valbuena-Niño et al, 2011;Peña et al, 2009) and reinforce the results obtained in the Tafel analysis regarding the electrochemical behavior of AISI 420 SS against electrochemical corrosion.…”

Section: Electrochemical Analysissupporting

confidence: 86%

Electrochemical Behavior of a Stainless Steel Superficially Modified with Nitrogen by Three-dimensional Ion Implantation

et al. 2021

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Martensitic-grade stainless steels are widely used in diverse industrial and surgical applications, despite their natural tendency to suffer local and uniform corrosion when continuously exposed to aggressive operation conditions. In order to enhance their surface properties, this paper characterized the performance, in saline solutions, of AISI 420 stainless steel, which was surface-modified by three-dimensional ion implantation using electrochemical techniques. The surface of the samples was implanted with ionized nitrogen particles with an energy of 10 keV, varying the implantation time between 30 and 90 minutes. After the surface treatment, the samples were exposed to a NaCl 3% (w/w) aqueous solution for 21 days. Tafel extrapolation, linear polarization resistance, and electrochemical impedance spectroscopy tests were performed, with the purpose of quantifying the effect of the ion implantation technique against electrochemical corrosion. To establish a comparison, the same tests were also performed on non-treated samples. The results indicated an increase in the corrosion potential, polarization resistance, and a decrease in the current density of implanted samples, thus demonstrating that, by delaying corrosive activity, traditional ion implantation offers better protection against electrochemical corrosion in AISI 420 stainless steel samples implanted with nitrogen.

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Section: Electrochemical Analysissupporting

confidence: 86%

Electrochemical Behavior of a Stainless Steel Superficially Modified with Nitrogen by Three-dimensional Ion Implantation

et al. 2021

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Section: Introductionmentioning

confidence: 99%

“…The reactor JUPITER (Join Universal of Plasma and Ion Technologies Experimental Reactor) [9] is the only equipment built based on this technology that allow the implantation of ions in solid substrates of metallic and non-metallic species. The parameters that characterize the implementation are: the ion's type, the ion's energy and the implanted dose [1,2,[10][11][12].The calculation of superficial density of ions implanted in some material depends mainly of time of treatment, density of ionic current, repetition frequency and pulse duration, the secondary emission ion-electron coefficient of material and the area of the cathode. This paper presents a computational tool, which allows us estimate the value for implanted dose on the surface of solid substrates after a process of surface modification by ion 3DII.…”

mentioning

confidence: 99%

Estimate of the concentration of implanted ions in solid substrates using a web application

Vera-Rivera¹,

Gutiérrez

Dulce-Moreno³

et al. 2016

J. Phys.: Conf. Ser.

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Abstract. The three-dimensional ionic implantation technique (3DII) is used to modify the surface of solid metal by electric discharges pulsed of high voltage at low pressures. Knowing the density of ions implanted in the surface of a functional element, in a faster and estimated way, will help to optimize the surface treatment technique. Therefore, a web application was developed which from experimental parameters established in a process 3DII estimates the concentration of ions implanted in solid metal substrates. The results obtained in this research work demonstrate the feasibility of the computational web tool to perfect the experiments of surface modification by ion implantation. IntroductionThe modification superficial consists in alter the composition and structure of materials either by creating a coating (with typical thicknesses of a few microns) or by introducing new elements into the surface (dopant ions) in nanometric depths [1].The three-dimensional ion implantation (3DII) [2] is a superficial modification process generated by high voltage discharges at low pressures, which turns on in the left branch of the Paschen curve, and it is used as an alternative to improve physical and chemical properties of materials [3][4][5][6]. The pioneers in the study of this type of discharge were Klarfeld and Pokrovskaya-Soboleva [7] and McClure [8]. The reactor JUPITER (Join Universal of Plasma and Ion Technologies Experimental Reactor) [9] is the only equipment built based on this technology that allow the implantation of ions in solid substrates of metallic and non-metallic species. The parameters that characterize the implementation are: the ion's type, the ion's energy and the implanted dose [1,2,[10][11][12].The calculation of superficial density of ions implanted in some material depends mainly of time of treatment, density of ionic current, repetition frequency and pulse duration, the secondary emission ion-electron coefficient of material and the area of the cathode. This paper presents a computational tool, which allows us estimate the value for implanted dose on the surface of solid substrates after a process of surface modification by ion 3DII. These calculations are faster and correct that traditional form. The web application is the result of a technological applied research, which can be used at any time, from anywhere, in different electronic devices (computers, tablets, mobile phones, etc.).

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Performance in saline environment of a carbon steel surface modified by three-dimensional ion implantation

Sanabria

Viejo

V-Niño

2019

J. Phys.: Conf. Ser.

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The three-dimensional ion implantation method is presented as a new plasma-ion technology for advanced surface treatment. It is based on a high voltage pulsed discharge activated in the low-pressure range and applicable to solid surface immersed in a gaseous atmosphere. This process is carried out in the joint universal plasma and ion technologies experimental reactor and is widely used to improve the tribological properties and corrosion resistance of metallic materials, specially steels. In this study, the performance in a corrosive environment of a carbon steel surface-modified was evaluated. High-energy nitrogen ions were implanted on the surface of the material at different discharge voltages and times. Treated and non-treated substrates were exposed to saline solution for 35 days, where the effect of the surface modification was shown to decrease the corrosion rate and degradation of the implanted material surface compared to untreated substrates. The estimation of the nitrogen concentration from experimental parameters were calculated by a novel web application. Additionally, the effect of the implantation process of the modified steel structure was analyzed by optical emission spectroscopy, whose results detected mainly an increase of the nitrogen concentration at the surface of the modified substrates.

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Modificación superficial de un acero AISI SAE 1045 mediante la implantación de iones de nitrógeno y titanio

Cited by 5 publications

References 0 publications

Electrochemical Behavior of a Stainless Steel Superficially Modified with Nitrogen by Three-dimensional Ion Implantation

Electrochemical Behavior of a Stainless Steel Superficially Modified with Nitrogen by Three-dimensional Ion Implantation

Estimate of the concentration of implanted ions in solid substrates using a web application

Performance in saline environment of a carbon steel surface modified by three-dimensional ion implantation

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