Startseite Effect of the notch location on the Charpy-V toughness results for robotic flux-cored arc welded multipass joints
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Effect of the notch location on the Charpy-V toughness results for robotic flux-cored arc welded multipass joints

  • Uğur Gürol ORCID logo EMAIL logo , Ozan Çoban

    Ozan Çoban, MSc, is a PhD candidate in the Department of Metallurgical and Materials Engineering at Istanbul Technical University. He has been working as research assistant in Department of Metallurgical and Materials Engineering at Istanbul Gedik University since 2015. His research interests are hydrometallurgy, combustion synthesis of advanced ceramics, nanoparticle synthesis in the field of extractive metallurgy; and microstructural characterization, failure analysis of cobalt-based superalloys, characterization of welded armour steels and mechanical metallurgy in the field of materials science.

     ORCID logo     , İbrahim Can Coşar

    İbrahim Can Coşar, born in 1994, recently graduated in Metallurgical and Materials Engineering Department from İstanbul Gedik University. He has been working as sales manager in a company that works on welding consumables for 7 years.

     ORCID logo     und Mustafa Koçak ORCID logo
Veröffentlicht/Copyright: 6. September 2022
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Materials Testing
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Abstract

In this study, the effect of the notch locations on the Charpy-V toughness values of the all-welded joint obtained using robotic flux-cored arc welding was investigated with respect to microstructures at the notch locations. Charpy impact tests were performed through the thickness with notch location at the centerline as well as off-set regions of the weld metal in addition to the microhardness measurements conducted. The detailed weld metal characterization was conducted using a stereo microscope, optical microscope, and scanning electron microscope at the same location where the Charpy tests and microhardness tests were performed. The sub-zero impact toughness test results indicated that the columnar weld metal regions exhibited low toughness values while the centerline microstructure consisting of mainly reheated regions displayed much higher toughness values even at the test temperature of −60 °C, satisfying the toughness requirement of the requested 47 J value. It is concluded that a small variation of the through-thickness notch position may result in different toughness values for the same weld metal. On this basis, the notching procedure of the Charpy-V samples for the multi-pass weld metal should be conducted with care and obtained results should be explained with respective notch position and microstructure.

Keywords: all-weld metal; flux-cored arc welding; mechanical properties; microstructural characterization; notch position
Corresponding author: Uğur Gürol, Metallurgical and Materials Engineering Department, İstanbul Gedik University, İstanbul, Turkey, E-mail:

About the authors

Ozan Çoban

Ozan Çoban, MSc, is a PhD candidate in the Department of Metallurgical and Materials Engineering at Istanbul Technical University. He has been working as research assistant in Department of Metallurgical and Materials Engineering at Istanbul Gedik University since 2015. His research interests are hydrometallurgy, combustion synthesis of advanced ceramics, nanoparticle synthesis in the field of extractive metallurgy; and microstructural characterization, failure analysis of cobalt-based superalloys, characterization of welded armour steels and mechanical metallurgy in the field of materials science.

İbrahim Can Coşar

İbrahim Can Coşar, born in 1994, recently graduated in Metallurgical and Materials Engineering Department from İstanbul Gedik University. He has been working as sales manager in a company that works on welding consumables for 7 years.

Acknowledgement

Authors wish to acknowledge the valuable contributions of Mrs. Nurten Güleçyüz for assisting the robotic welding operations.

  1. Author contributions: All the authors have accepted responsibility for the entire content of this submitted manuscript and approved submission.

  2. Research funding: None declared.

  3. Conflict of interest statement: The authors declare no conflicts of interest regarding this article.

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Published Online: 2022-09-06
Published in Print: 2022-09-27

© 2022 Walter de Gruyter GmbH, Berlin/Boston

Artikel in diesem Heft

  1. Frontmatter
  2. Effect of local heat treatment on residual stresses in an in-service repair welded pipeline
  3. Tension-compression asymmetry of quadruple CuCoNiBe alloys processed by high-temperature multi-pass equal channel angular pressing (ECAP)
  4. Structural properties of sputter-deposited nanocrystalline Ni thin films
  5. Effect of the notch location on the Charpy-V toughness results for robotic flux-cored arc welded multipass joints
  6. Effect of micro and nano-sized ZrSiO4 particles on the friction and wear properties of polymer matrix composites
  7. Evaluation of the plastic deformation behavior of modified 100Cr6 steels with increased fractions of retained austenite using cyclic indentation tests
  8. Thermomechanical evaluation of a glass-epoxy composite for astronomical optical devices
  9. Artificial gorilla troops algorithm for the optimization of a fine plate heat exchanger
  10. Metallurgical properties of boride layers formed in pack boronized cementation steel
  11. Numerical study of composite plates jointed adhesively with interspaced and interspaced double-lap joint subject to tensile load
  12. Thermal analysis and performance testing of heavy load truck composite brake linings
  13. Vibration characteristics of mineral composite beams by experimental modal test method
  14. Overview of friction welding processes for different metallic materials
https://doi.org/10.1515/mt-2022-0113
Schlagwörter für diesen Artikel
all-weld metal; flux-cored arc welding; mechanical properties; microstructural characterization; notch position

Artikel in diesem Heft

  1. Frontmatter
  2. Effect of local heat treatment on residual stresses in an in-service repair welded pipeline
  3. Tension-compression asymmetry of quadruple CuCoNiBe alloys processed by high-temperature multi-pass equal channel angular pressing (ECAP)
  4. Structural properties of sputter-deposited nanocrystalline Ni thin films
  5. Effect of the notch location on the Charpy-V toughness results for robotic flux-cored arc welded multipass joints
  6. Effect of micro and nano-sized ZrSiO4 particles on the friction and wear properties of polymer matrix composites
  7. Evaluation of the plastic deformation behavior of modified 100Cr6 steels with increased fractions of retained austenite using cyclic indentation tests
  8. Thermomechanical evaluation of a glass-epoxy composite for astronomical optical devices
  9. Artificial gorilla troops algorithm for the optimization of a fine plate heat exchanger
  10. Metallurgical properties of boride layers formed in pack boronized cementation steel
  11. Numerical study of composite plates jointed adhesively with interspaced and interspaced double-lap joint subject to tensile load
  12. Thermal analysis and performance testing of heavy load truck composite brake linings
  13. Vibration characteristics of mineral composite beams by experimental modal test method
  14. Overview of friction welding processes for different metallic materials
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