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Process parameters, structure and mechanical properties of dissimilar Nimonic 80 A/AISI 316 L resistance welded joints

  • Ion Mitelea

    Dr. Ion Mitelea (1946) is currently a Professor of Materials Science, Materials and Heat Treatments for Welded Structures and Selection and Use of Engineering Materials at University Politehnica Timisoara, Romania.

         , Lucian Călin Burcă

    Dr. Lucian Călin Burcă (1981) is a PhD student in Materials Engineering at University Politehnica Timisoara. He performs his research experiments under the coordination of Prof. Mitelea.

         , Mircea Burcă

    Dr. Mircea Burcă (1955) is lecturer within Materials and Manufacturing Engineering Department at University Politehnica Timisoara. His is involved in joining of materials by welding processes.

         , Corneliu Marius Crăciunescu

    Dr. Corneliu Marius Crăciunescu (1960) is a Professor of Materials Science at the Department of Materials and Manufacturing Engineering at University Politehnica Timisoara. His main research area is magnetic shape memory alloys.

         and Ion-Dragoș Uţu

    Dr. Ion-Dragoș Uţu (1978) graduated from University Politehnica Timisoara, Romania, as a Bachelor and PhD, and is currently Professor in the Material Science and Manufacturing department at University Politehnica Timisoara, Romania.

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Published/Copyright: May 8, 2023
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Materials Testing
From the journal Materials Testing Volume 65 Issue 6

Abstract

The effects of welding current and welding time on the shear resistance of spot welded joints of dissimilar Ni-base superalloys and austenitic stainless steels are investigated for expanding the limits of their use in automotive, naval and aerospace industries. The macro- and micro-structural characteristics, microhardness, and shear strength of the welded joints were examined in order to characterize the resulting joints. It was found that the shear resistance of the heterogeneous welded joints reaches values of 742–849 MPa, much higher than the one specific of the weaker material, which is the austenitic stainless steel with low carbon content, AISI 316 L. The diameter of the welded cores increased for higher current and welding time. Scanning electron microscopy (SEM), energy dispersive X-ray analysis (EDX), and X-ray diffraction (XRD) were used to evaluate the microstructure of the welded joints from the two dissimilar materials.

Keywords: AISI 316 L stainless steel; mechanical properties; microstructure; Nimonic 80 A alloy; RSW joining
Corresponding author: Ion-Dragoș Uţu, Materials Engineering and Manufacturing, Politehnica University of Timisoara, B-dul Mihai Viteazu Nr. 1, Timisoara, Timis, 300006, Romania, E-mail:

Funding source: This work was supported by a grant of the Romanian Ministry of Education and Research, CCCDI – UEFISCDI, project number PN-III-P2-2.1-PED-2019-0619, within PNCD III

Award Identifier / Grant number: PN-III-P2-2.1-PED-2019-0619

About the authors

Ion Mitelea

Dr. Ion Mitelea (1946) is currently a Professor of Materials Science, Materials and Heat Treatments for Welded Structures and Selection and Use of Engineering Materials at University Politehnica Timisoara, Romania.

Lucian Călin Burcă

Dr. Lucian Călin Burcă (1981) is a PhD student in Materials Engineering at University Politehnica Timisoara. He performs his research experiments under the coordination of Prof. Mitelea.

Mircea Burcă

Dr. Mircea Burcă (1955) is lecturer within Materials and Manufacturing Engineering Department at University Politehnica Timisoara. His is involved in joining of materials by welding processes.

Corneliu Marius Crăciunescu

Dr. Corneliu Marius Crăciunescu (1960) is a Professor of Materials Science at the Department of Materials and Manufacturing Engineering at University Politehnica Timisoara. His main research area is magnetic shape memory alloys.

Ion-Dragoș Uţu

Dr. Ion-Dragoș Uţu (1978) graduated from University Politehnica Timisoara, Romania, as a Bachelor and PhD, and is currently Professor in the Material Science and Manufacturing department at University Politehnica Timisoara, Romania.

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

  2. Research funding: This work was supported by a grant of the Romanian Ministry of Education and Research, CCCDI – UEFISCDI, project number PN-III-P2-2.1-PED-2019-0619, within PNCD III.

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

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Published Online: 2023-05-08
Published in Print: 2023-06-27

© 2023 Walter de Gruyter GmbH, Berlin/Boston

Articles in the same Issue

  1. Frontmatter
  2. Creep-fatigue assessment of martensitic welds based on numerically determined local deformation
  3. Evaluation of ductile fracture criteria in combination with a homogenous polynomial yield function for edge splitting damage of DP steels
  4. Microscopic characteristics of copper wires with short-circuit molten marks in electrical fire
  5. Microstructure and properties of laser cladding in-situ ceramic particles reinforced Ni-based coatings
  6. Wear properties of borided WC-Co
  7. Microstructure and mechanical properties of an additively manufactured AlSi10Mg based alloy
  8. Finite element method analysis of a linear friction welded Ti6Al4V alloy
  9. Influence of partitioning treatment on microstructure and mechanical properties of an alloyed ductile iron austempered at different temperatures
  10. Process parameters, structure and mechanical properties of dissimilar Nimonic 80 A/AISI 316 L resistance welded joints
  11. Atmospheric corrosion behaviors of 6000-series aluminum alloy under tropical climate influences of Thailand
  12. Effect of micro particle addition to the resin on the mechanical behavior of fiber reinforced composite plates
  13. Ecofriendly synthesis of hydrated manganese oxide and its efficient adsorption of lead ions from water
  14. TIG-weldability of AISI 430 and DUROSTAT 500 grade
  15. Mechanical behavior of AA5083/AA6061 friction stir welds using modal analysis
https://doi.org/10.1515/mt-2022-0349
Keywords for this article
AISI 316 L stainless steel; mechanical properties; microstructure; Nimonic 80 A alloy; RSW joining

Articles in the same Issue

  1. Frontmatter
  2. Creep-fatigue assessment of martensitic welds based on numerically determined local deformation
  3. Evaluation of ductile fracture criteria in combination with a homogenous polynomial yield function for edge splitting damage of DP steels
  4. Microscopic characteristics of copper wires with short-circuit molten marks in electrical fire
  5. Microstructure and properties of laser cladding in-situ ceramic particles reinforced Ni-based coatings
  6. Wear properties of borided WC-Co
  7. Microstructure and mechanical properties of an additively manufactured AlSi10Mg based alloy
  8. Finite element method analysis of a linear friction welded Ti6Al4V alloy
  9. Influence of partitioning treatment on microstructure and mechanical properties of an alloyed ductile iron austempered at different temperatures
  10. Process parameters, structure and mechanical properties of dissimilar Nimonic 80 A/AISI 316 L resistance welded joints
  11. Atmospheric corrosion behaviors of 6000-series aluminum alloy under tropical climate influences of Thailand
  12. Effect of micro particle addition to the resin on the mechanical behavior of fiber reinforced composite plates
  13. Ecofriendly synthesis of hydrated manganese oxide and its efficient adsorption of lead ions from water
  14. TIG-weldability of AISI 430 and DUROSTAT 500 grade
  15. Mechanical behavior of AA5083/AA6061 friction stir welds using modal analysis
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