Startseite The Investigation of Graphite Distribution on Diffusion Bonding of the AISI 1030 Low Carbon Steel with Nodular Cast Iron
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The Investigation of Graphite Distribution on Diffusion Bonding of the AISI 1030 Low Carbon Steel with Nodular Cast Iron

  • Ugur Caligulu
Veröffentlicht/Copyright: 26. Mai 2013
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Materials Testing
Aus der Zeitschrift Materials Testing Band 53 Heft 10

Abstract

The joining of Nodular Cast Iron with the conventional methods presents many problems due to the presence of high carbon content and low ductility. Therefore it is necessary to use heat treatment or to take some precautions before and after bonding. In this study, the graphite distribution on both sides of the interface of diffusion bonding of the AISI 1030 low carbon steel with Nodular Cast Iron was investigated. In order to observe the behavior of the graphite nodules in diffusion bonding, AISI 1030 was used as the comparison of alloy. Diffusion bonding experiments were carried out in an argon atmosphere at the temperatures of 900–950 and 1000 °C and 15 MPa under a dynamic load for 50–100 and 150 min. holding times. The properties of microstructure and graphite distribution that formed in the interface zone of the joints were examined by optic microscope, SEM, EDS, and X-Ray analysis. The hardness values from the interface were measured with the HV hardness scale. The strength of the joint was tested by lap-shear tests. The result of all observations indicated a homogenous graphite distribution. On the other hand, as a function of the process temperature elevation, an increase in the amount of graphite atoms that migrated towards the interface and a decrease in the nodule diameters were observed.

Kurzfassung

Das Verbinden von Gusseisen mit Kugelgraphit mittels konventioneller Verfahren bringt aufgrund des hohen Kohlenstoffgehaltes und der niedrigen Duktilität viele Schwierigkeiten mit sich. Daher ist es notwendig, eine Wärmebehandlung durchzuführen oder andere Vorkehrungen vor oder nach dem Fügen zu treffen. Für die diesem Beitrag zugrunde liegende Studie wurde die Graphitverteilung auf beiden Seiten der Grenzfläche beim Diffusionsverbinden des kohlenstoffarmen Stahles AISI 1030 mit Kugelgraphit-Gusseisen untersucht. Um das Verhalten des Kugelgrphits während des Bonding-Prozesses zu beobachten, wurde der Stahl AISI als Vergleichswerkstoff verwendet. Die Bonding-Versuche wurden in einer Argon-Atmosphäre bei Temperaturen von 900, 950 und 1000 °C und einer dynamischen Beanspruchung mit 15 MPa bei Haltezeiten von 50, 100 und 150 min. durchgeführt. Die mikrostrukturellen Eigenschaften und die Graphitverteilung an der Grenzfläche der der Verbindungen wurden mittels Lichtmikroskop, REM, EDS und Röntgenanalyse untersucht. Ebenso wurde die Vickershärte bestimmt. Die Festigkeit der Verbindung wurde mit Scherversuchen geprüft. Im Ergebnis aller Untersuchungen zeigte sich eine homogene Graphitverteilung, eine Zunahme der Anzahl von Kohlenstoffatomen, die in Richtung der Grenzfläche migrierten, und eine Abnahme des Durchmessers der Graphitkugeln.

Ugur Caligulu was born 1979 in Elazig, Turkey. B.Sc: University of Firat, Faculty of Technical Education, Metallurgy Department, Elazig, Turkey, 2002. M.Sc: University of Firat, Institute of Science and Technology, Metallurgy Department, Elazig, Turkey, 2005. Ph.D: University of Firat, Institute of Science and Technology, Metallurgy Department, Elazig, Turkey, 2009. Study at University of Firat, Elazig, Turkey. Research areas: Fusion Welding Method, Solid State Welding Method, Materials Science, Composite Materials, Powder Metallurgy, Manufacturing Techniques, Surface Modification and Tribology, Artificial Neural Network, MANOVA.

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Published Online: 2013-05-26
Published in Print: 2011-10-01

© 2011, Carl Hanser Verlag, München

Artikel in diesem Heft

  1. Inhalt/Contents
  2. Inhalt
  3. Fachbeiträge/Technical Contributions
  4. DIN EN ISO 6892-1:2009 Der Zugversuch — Erste Erfahrungen aus der praktischen Umsetzung der neuen Norm*
  5. EN ISO 6892-1:2009 Tensile Testing: Initial Experience from the Practical Implementation of the New Standard*
  6. Weld Metal Grain Refinement of Aluminium Alloy 5083 through Controlled Additions of Ti and B
  7. TIG Riveting of Temperature Sheath Microprobe
  8. Einfluss der Mikrostruktur auf den Druck- und Zug-E-Modul teilkristalliner Kunststoffe
  9. A Novel Approach for Quantitative Measurement of the Slag Penetration Area in Refractories by Using Computer Aided Image Analysis
  10. Effects of Thermal Oxidation and Subsequent Pickling on Pitting Geometry of Austentitic Stainless Steels in Chloride Solutions
  11. Plasmagestützte Ionisations-spektroskopie (PGIS) zur Materialanalyse
  12. Arbeitswalzen aus Keramik zum Walzen von dünnen Stahlfolien im 20-Walzen-Sendzimirgerüst
  13. Magnesium Applications for Fuel Economy and Energy Production
  14. The Investigation of Graphite Distribution on Diffusion Bonding of the AISI 1030 Low Carbon Steel with Nodular Cast Iron
  15. Kalender/Calendar
  16. Kalender
  17. Vorschau/Preview
  18. Vorschau
https://doi.org/10.3139/120.110275

Artikel in diesem Heft

  1. Inhalt/Contents
  2. Inhalt
  3. Fachbeiträge/Technical Contributions
  4. DIN EN ISO 6892-1:2009 Der Zugversuch — Erste Erfahrungen aus der praktischen Umsetzung der neuen Norm*
  5. EN ISO 6892-1:2009 Tensile Testing: Initial Experience from the Practical Implementation of the New Standard*
  6. Weld Metal Grain Refinement of Aluminium Alloy 5083 through Controlled Additions of Ti and B
  7. TIG Riveting of Temperature Sheath Microprobe
  8. Einfluss der Mikrostruktur auf den Druck- und Zug-E-Modul teilkristalliner Kunststoffe
  9. A Novel Approach for Quantitative Measurement of the Slag Penetration Area in Refractories by Using Computer Aided Image Analysis
  10. Effects of Thermal Oxidation and Subsequent Pickling on Pitting Geometry of Austentitic Stainless Steels in Chloride Solutions
  11. Plasmagestützte Ionisations-spektroskopie (PGIS) zur Materialanalyse
  12. Arbeitswalzen aus Keramik zum Walzen von dünnen Stahlfolien im 20-Walzen-Sendzimirgerüst
  13. Magnesium Applications for Fuel Economy and Energy Production
  14. The Investigation of Graphite Distribution on Diffusion Bonding of the AISI 1030 Low Carbon Steel with Nodular Cast Iron
  15. Kalender/Calendar
  16. Kalender
  17. Vorschau/Preview
  18. Vorschau
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