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Effect of Various Heat Treatments on Microstructure and Mechanical Properties of 34CrNiMo6 Steel

  • Mohammad E. Abd El-Azim , Mohammad M. Ghoneim , Aly M. Nasreldin and Salah Soliman
Published/Copyright: December 2, 2021
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International Journal of Materials Research
From the journal International Journal of Materials Research Volume 88 Issue 6

Abstract

Three different austenitization treatments were applied to high strength 34CrNiMo6 steel: conventional austenitization (CAT), high temperature austenitization (HTA) and duplex treatment (DT). It was found that DT structure has finer prior austenite grain size (30 μm) than those of HTA (200 μm) and CAT (70 μm) structures. DT and HTA structures have coarser lath size for martensite than CAT structure.

DT results in higher room temperature impact toughness than HTA and CAT structures and shifts the ductile –brittle transition to lower temperatures by 14 K and 32 K in comparison with HTA and CAT structures, respectively. However, DT structure has intermediate values of room temperature yield stress and ultimate tensile strength between those of CAT and HTA structures. When this steel was tempered at 300 and 400 °C it underwent tempered martensite embrittlement associated with intergranular fracture.

S. Soliman 90-D, Ahmed Orabi St. Apt. No. 7-9th floor Mohandseen Post Code 12411, Cairo, Egypt

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Received: 1996-08-09
Published Online: 2021-12-02

© 1997 Carl Hanser Verlag, München

Articles in the same Issue

  1. Frontmatter
  2. Aufsätze
  3. Phase Formation During Dissolution of Nickel in Liquid Aluminium
  4. Comment on the Article: Phase Transformations in CuAu and Cu3Au
  5. Numerische Simulation der Erstarrung Teil 4: Unterkühlungseffekte
  6. Integral Enthalpy of Mixing in Ternary (In, Pb, Zn) Monophase Liquid – Calorimetric Measurements. Modeling Outside and Inside the Miscibility Gap
  7. Lanthanum-containing Ternary Solid Solutions with the NaZn13-, ThMn12- and Th2Zn17-Type Crystal Structures
  8. Modelling of the Thermodynamic Properties of Bi–As2Te3 and Tl–As2Te3 Ternary Alloys
  9. Solubility of Metals in Low-melting Melts
  10. Effect of Aging on the Structure of Spark Erosion Treated Surface of Cobalt
  11. Fracture Toughness of Supported Ni–P Films Prepared by Autocatalytic Chemical Deposition
  12. Tribological Behaviour of Electroless Ni –P–MoS2 Composite Coatings
  13. Effect of Various Heat Treatments on Microstructure and Mechanical Properties of 34CrNiMo6 Steel
  14. Simulation des Deformationsverhaltens von Metallen mit Formgedächtniseffekt unter Berücksichtigung des Versetzungsgleitens
  15. Mitteilungen der Deutschen Gesellschaft für Materialkunde e.V.
  16. Personen
  17. Veranstaltungen
  18. Buchbesprechungen
  19. Terminkalender
https://doi.org/10.3139/ijmr-1997-0191

Articles in the same Issue

  1. Frontmatter
  2. Aufsätze
  3. Phase Formation During Dissolution of Nickel in Liquid Aluminium
  4. Comment on the Article: Phase Transformations in CuAu and Cu3Au
  5. Numerische Simulation der Erstarrung Teil 4: Unterkühlungseffekte
  6. Integral Enthalpy of Mixing in Ternary (In, Pb, Zn) Monophase Liquid – Calorimetric Measurements. Modeling Outside and Inside the Miscibility Gap
  7. Lanthanum-containing Ternary Solid Solutions with the NaZn13-, ThMn12- and Th2Zn17-Type Crystal Structures
  8. Modelling of the Thermodynamic Properties of Bi–As2Te3 and Tl–As2Te3 Ternary Alloys
  9. Solubility of Metals in Low-melting Melts
  10. Effect of Aging on the Structure of Spark Erosion Treated Surface of Cobalt
  11. Fracture Toughness of Supported Ni–P Films Prepared by Autocatalytic Chemical Deposition
  12. Tribological Behaviour of Electroless Ni –P–MoS2 Composite Coatings
  13. Effect of Various Heat Treatments on Microstructure and Mechanical Properties of 34CrNiMo6 Steel
  14. Simulation des Deformationsverhaltens von Metallen mit Formgedächtniseffekt unter Berücksichtigung des Versetzungsgleitens
  15. Mitteilungen der Deutschen Gesellschaft für Materialkunde e.V.
  16. Personen
  17. Veranstaltungen
  18. Buchbesprechungen
  19. Terminkalender
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