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Evaluation of nickel shot peening process on strength of friction stir welded AA2014-T6 aluminum alloy joints

  • K. Mallieswaran

    is working as an Associate Professor in Mechanical Engineering at CK College of Engineering and Technology, Cuddalore, Tamil Nadu, India. He hascompleted his B.E in Mechanical Engineering, MBA in Production Management, M.E in CAD, and Ph.D. from VIT University, Chennai Campus. He has published many papers in peer reviewed international journals.His research areas are Metal Joining,Corrosion, Sheet Metal Forming, Composite Materials and Additive Manufacturing.

         , C. Rajendran , R. Padmanabhan

    is working as a Professor Higher Academic Grade in School of Mechanical Engineering at VIT University Chennai, Tamil Nadu, India. He has completed his B.E in Mechanical Engineering, M.E in Production Engineering and Ph.D from Dublin City University, Ireland, Post-Doctoral Research Associate at University of Coimbra, Portugal.He has published many papers in peer reviewed international journals. His H-index(scopus) is 15 and i10 index is 18. He is the Editor, Advances in Materials & Processing Technologies, Taylor & Francis Publishing Company. His research areas are Manufacturing Processes, Sheet Metal Forming, MEMS.

         and S. Rajasekaran
Published/Copyright: July 1, 2023
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Practical Metallography
From the journal Practical Metallography Volume 60 Issue 7

Abstract

The best aluminum alloys for construction are those that incorporate copper. However, welding engineers find it difficult to join aluminium and its alloys as a result of cracking. One of the popular methods for joining nonferrous materials, especially aluminum alloys, is friction stir welding (FSW). A tensile strength of 75 % to 85 % of the basic material strength is produced by FSW joints. The majority of studies have documented a reduction in strength as a result of incomplete melting, creating a soft region at the boundary between the thermo – mechanically influenced zone and the stir zone. The current effort has focused on using the shot peening method to reduce the softness at the interface. According to the test findings, the nickel shot-peened joint produced a stronger joint than the traditional FSW joint. The shot-peened joint has gained 7 % additional strength compared to untreated joint.

Kurzfassung

Unter den Aluminiumlegierungen eignen sich besonders die kupferhaltigen Legierungen als Konstruktionswerkstoff. Für Schweißingenieure ist es jedoch schwierig, Aluminium und seine Legierungen zu fügen, da es leicht zu Rissen kommen kann. Eines der beliebtesten Fügeverfahren für Nichteisenwerkstoffe, insbesondere für Aluminiumlegierungen, ist das Rührreibschweißen (friction stir welding, FSW). Durch FSW-Verbindungen wird eine Zugfestigkeit von 75 % bis 85 % der Festigkeit des Grundmaterials erreicht. Einige Studien haben eine Verringerung der Festigkeit als Folge eines unvollständigen Aufschmelzens dokumentiert, wodurch ein weicher Bereich an der Grenze zwischen der thermomechanisch beeinflussten Zone und der Rührreibzone entsteht. Die aktuelle Forschung konzentriert sich auf die Anwendung des Kugelstrahlverfahrens, um die geringe Festigkeit an der Grenzfläche zu verbessern. Die Testergebnisse zeigen, dass die mit Nickel kugelgestrahlte Verbindung eine festere Verbindung als die herkömmliche FSW-Verbindung ergibt. Die kugelgestrahlte FSW-Verbindung hat im Vergleich zur unbehandelten Verbindung eine Festigkeitssteigerung von 7 % erreicht.

Keywords: AA2014; shot peening; nickel shot; EBSD; mechanical properties; microstructure
Schlagwörter: AA2014; Kugelstrahlen; Nickelkugeln; EBSD; mechanische Eigenschaften; Mikrostruktur

About the authors

Dr. K. Mallieswaran

is working as an Associate Professor in Mechanical Engineering at CK College of Engineering and Technology, Cuddalore, Tamil Nadu, India. He hascompleted his B.E in Mechanical Engineering, MBA in Production Management, M.E in CAD, and Ph.D. from VIT University, Chennai Campus. He has published many papers in peer reviewed international journals.His research areas are Metal Joining,Corrosion, Sheet Metal Forming, Composite Materials and Additive Manufacturing.

Dr. R. Padmanabhan

is working as a Professor Higher Academic Grade in School of Mechanical Engineering at VIT University Chennai, Tamil Nadu, India. He has completed his B.E in Mechanical Engineering, M.E in Production Engineering and Ph.D from Dublin City University, Ireland, Post-Doctoral Research Associate at University of Coimbra, Portugal.He has published many papers in peer reviewed international journals. His H-index(scopus) is 15 and i10 index is 18. He is the Editor, Advances in Materials & Processing Technologies, Taylor & Francis Publishing Company. His research areas are Manufacturing Processes, Sheet Metal Forming, MEMS.

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Received: 2022-12-03
Accepted: 2023-05-17
Published Online: 2023-07-01
Published in Print: 2023-06-30

© 2023 Walter de Gruyter GmbH, Berlin/Boston, Germany

Articles in the same Issue

  1. Contents
  2. Editorial
  3. Editorial
  4. Structural analysis of Cu-based FeCr reinforced composites prepared by mechanical alloying
  5. Scale-bridging contrasting and characterization of multi-wire submerged arc welds and electron beam welds in steels
  6. Evaluation of nickel shot peening process on strength of friction stir welded AA2014-T6 aluminum alloy joints
  7. Failure Analysis
  8. How inadequate heat treatment or complete lack thereof can cause component failures
  9. Picture of the Month
  10. Picture of the Month
  11. News
  12. News
  13. Meeting Dairy
  14. Meeting Diary
https://doi.org/10.1515/pm-2022-1038
Keywords for this article
AA2014; shot peening; nickel shot; EBSD; mechanical properties; microstructure

Articles in the same Issue

  1. Contents
  2. Editorial
  3. Editorial
  4. Structural analysis of Cu-based FeCr reinforced composites prepared by mechanical alloying
  5. Scale-bridging contrasting and characterization of multi-wire submerged arc welds and electron beam welds in steels
  6. Evaluation of nickel shot peening process on strength of friction stir welded AA2014-T6 aluminum alloy joints
  7. Failure Analysis
  8. How inadequate heat treatment or complete lack thereof can cause component failures
  9. Picture of the Month
  10. Picture of the Month
  11. News
  12. News
  13. Meeting Dairy
  14. Meeting Diary
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