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Investigation on mechanical properties of solution strengthened and austempered ferritic ductile irons

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Published/Copyright: February 23, 2021
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International Journal of Materials Research
From the journal International Journal of Materials Research Volume 111 Issue 12

Abstract

The aim of this study was to investigate the influence of austempering on the mechanical properties of solutionstrengthened ferritic cast ductile irons. The microstructural examinations of the samples were conducted using optical microscopy, scanning electron microscopy, and X-ray diffraction. Hardness, impact, and tensile tests were performed to determine the mechanical features. After the impact test, the fracture surface morphology was analyzed with scanning electron microscopy. The austempering results showed that the matrix structure with 70% ferrite and 30% bainite had the highest fracture toughness and yield strength. The ausferrite phase in microstructure played a positive role in ductility, toughness, and strain rates. The mechanical properties were strongly related to the amounts of ausferrite and retained ferrite ratio.

Keywords: Solution strengthening; Ferritic cast irons; Austempering
Published Online: 2021-02-23
Published in Print: 2020-12-01

© 2020 by Walter de Gruyter Berlin/Boston

Articles in the same Issue

  1. CONTENTS
  2. Original Contributions
  3. Hot forming behavior of a modified Ni–Cr superalloy
  4. Investigation on mechanical properties of solution strengthened and austempered ferritic ductile irons
  5. Effect of martensite volume fraction on abnormal work hardening behavior of a low carbon low alloy ferrite–martensite dual-phase steel
  6. Enhancing the hydrogen embrittlement resistance of 304 steel by grain boundary engineering
  7. An investigation of corrosion behavior of Al–B4C nanocomposites in various corrosive solutions
  8. Effect of Al–Si alloy coating on interfacial reactions and tensile strength in Ti/Al dissimilar brazing joints
  9. Experimental and theoretical investigation of thermal properties of natural soil based geopolymer composites
  10. Investigations on pressure dependent physical properties of cubic AMoO3 (A = Ca, Sr) perovskites: A DFT calculation
  11. Short Communications
  12. Synthesis of nanostructured zirconium monosilicide via a lithium thermal reduction route at low temperature
  13. Notifications
  14. DGM
  15. Conferences
  16. Imprint
  17. Author Index 2020
  18. Keyword Index 2020
https://doi.org/10.3139/146.111963
Keywords for this article
Solution strengthening; Ferritic cast irons; Austempering

Articles in the same Issue

  1. CONTENTS
  2. Original Contributions
  3. Hot forming behavior of a modified Ni–Cr superalloy
  4. Investigation on mechanical properties of solution strengthened and austempered ferritic ductile irons
  5. Effect of martensite volume fraction on abnormal work hardening behavior of a low carbon low alloy ferrite–martensite dual-phase steel
  6. Enhancing the hydrogen embrittlement resistance of 304 steel by grain boundary engineering
  7. An investigation of corrosion behavior of Al–B4C nanocomposites in various corrosive solutions
  8. Effect of Al–Si alloy coating on interfacial reactions and tensile strength in Ti/Al dissimilar brazing joints
  9. Experimental and theoretical investigation of thermal properties of natural soil based geopolymer composites
  10. Investigations on pressure dependent physical properties of cubic AMoO3 (A = Ca, Sr) perovskites: A DFT calculation
  11. Short Communications
  12. Synthesis of nanostructured zirconium monosilicide via a lithium thermal reduction route at low temperature
  13. Notifications
  14. DGM
  15. Conferences
  16. Imprint
  17. Author Index 2020
  18. Keyword Index 2020
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