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      Enhanced surface properties of iron by in situ hard nickel coating Translated title: Verbesserte Oberflächeneigenschaften von Eisen durch harte in-situ Nickelbeschichtung

      1 , § , , 1
      Materials Testing
      Carl Hanser Verlag

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          In the current study, hard facing nickel alloy powders were coated in situ on pure iron by uniaxial hot pressing under vacuum atmosphere to improve its hardness and wear properties. The nickel alloy powders were placed onto the iron powders within a graphite die and then sintered at 1000 °C under 40 MPa for 10 minutes. Hardness and wear properties were studied by using a Vickers hardness tester and a ball-on-disk tribometer, respectively. The wear rates of the samples were evaluated using a sliding velocity of 0.13 m × s −1 under normal loads of 20, 30, 40 and 50 N at room temperature. The interface layer between the nickel layer and pure iron substrate was also evaluated by scanning electron microscopy and energy dispersive spectroscopy. The results showed that sintered samples exhibited strong bonding at the interface. The hardness and wear properties of the materials increased effectively after nickel coating.


          In der diesem Beitrag zugrunde liegenden Studie wurde reines Eisen in-situ mit Nickelpulver aufgepanzert, und zwar durch uniaxiales Heißpressen unter Vakuum, um seine Härte und Verschleißeigenschaften zu verbessern. Unterschiedliche Nickelpulver wurden auf Eisenpulver in einer Graphitpressform aufgebracht und anschließend bei 1000 °C unter 40 MPa für 10 Minuten gesintert. Es wurden die Härte und die Verschleißeigenschaften mittels eines Vickers-Härteprüfgerätes und einem entsprechenden Kugel-Scheibe-Tribometer geprüft. Die Verschleißraten der Proben wurden bei einer Schleifgeschwindigkeit von 0,13 m × s −1 unter Normalkräften von 20, 30, 40 und 50 N bei Raumtemperatur ermittelt. Die Grenzschicht zwischen der Nickelbeschichtung und dem Substrat aus reinem Eisen wurde außerdem mittels REM und EDS untersucht. Die Ergebnisse zeigen, dass die gesinterten Proben eine feste Bindung an der Grenzfläche aufwiesen. Die Härte und die Verschleißeigenschaften der Materialien nahmen durch die Nickelbeschichtung signifikant zu.

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          Effects of tungsten carbide thermal spray coating by HP/HVOF and hard chromium electroplating on AISI 4340 high strength steel

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            High performance and high complexity net shape parts for gas turbines: the ISOPREC® powder metallurgy process

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              Effect of contact pressure on wear resistance of AISI H13 tool steels with chromium nitride and hard chromium coatings


                Author and article information

                Materials Testing
                Carl Hanser Verlag
                2 February 2016
                : 58
                : 2
                : 151-154
                1 Kocaeli, Turkey
                Author notes
                [§ ] Correspondence Address, Dr. Ridvan Yamanoglu, Department of Metallurgical and Materials Engineering, Faculty of Engineering, Kocaeli University, 41380 Kocaeli, Turkey. E-mail: ryamanoglu@ 123456gmail.com

                Dr. Ridvan Yamanoglu, born in Bilecik, graduated from Kocaeli University, Izmit, Turkey, Department of Metallurgical and Materials Engineering in 2002. He received his MSc degree, and his PhD from Kocaeli University in 2005 and 2011, respectively. He has been working at the same university since 2002.

                B.Sc. Erdinc Efendi, born in Ardino/Bulgaria, graduated from the Afyon Kocatepe University, Afyon, Department of Metal Teaching in 2013. He has been doing his M.Sc. degree at the Kocaeli University, Izmit, Department of Metallurgical and Materials Engineering, since 2014.

                © 2016, Carl Hanser Verlag, München
                Page count
                References: 14, Pages: 4
                Fachbeiträge/Technical Contributions

                Materials technology,Materials characterization,Materials science
                Materials technology, Materials characterization, Materials science


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