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      Effect of pulsed plasma nitriding temperature on microstructure properties of AISI 304 stainless steel

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          Abstract

          This study reports the surface modification of AISI 304 stainless steel by applying nitrogen ion implantation by low energy plasma at different temperatures (380°C, 400°C, 440°C). The temperature of the samples was adjusted by varying the implantation pulse width while keeping the voltage constant at 1.5 kV. Microstructure and phase characterization were carried out by scanning electronic microscopy (SEM) and X-ray diffractometry (XRD) respectively. The surface hardness was determined by Knoop measurements, and the results show that the treatment increases up to two times the substrate hardness value. Additionally, it was found a direct dependence between the substrate temperature and the nitrided layer thickness. X-ray diffraction patterns indicate the shift of the peaks of the treated samples to lower angles than those of the untreated samples, which is a clear signature of expanded austenite.

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          Most cited references13

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          J. of Appl. Phys.

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              Surf. and Coat. Technol.

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                Author and article information

                Journal
                sv
                Superficies y vacío
                Superf. vacío
                Sociedad Mexicana de Ciencia y Tecnología de Superficies y Materiales A.C. (México, DF, Mexico )
                1665-3521
                2007
                : 20
                : 4
                : 1-3
                Affiliations
                [03] Toluca Estado de México orgnameInstituto Tecnológico de Toluca México
                [01] Saltillo Coahuila orgnameCorporación Mexicana de Investigación en Materiales, S.A. de C.V. México jcarlos@ 123456comimsa.com.mx
                [02] México DF orgnameInstituto Nacional de Investigaciones Nucleares
                Article
                S1665-35212007000400001 S1665-3521(07)02000400001
                fedcd473-c39b-4225-bc99-1ec6208d7690

                This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.

                History
                : 30 August 2007
                : 29 June 2006
                Page count
                Figures: 0, Tables: 0, Equations: 0, References: 13, Pages: 3
                Product

                SciELO Mexico


                Surface Hardening,Surface Treatments,Nitriding
                Surface Hardening, Surface Treatments, Nitriding

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