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Mechanical properties of cryogenically treated AA5083 friction stir welds

  • Neelamegam Vasudevan , Govindasamy Bhavani Bhaskar , Tadivaka Srinivasa Rao and Muthukrishnan Mohandass
Published/Copyright: November 18, 2019
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Materials Testing
From the journal Materials Testing Volume 61 Issue 12

Abstract

In this investigation, the effect of cryogenic treatment (CT) on room temperature mechanical properties was investigated. 10 mm thick AA5083-H321 plates were friction stir welded and the welds were deep treated cryogenically using liquid nitrogen. The effect of CT on the mechanical properties of the welds was investigated by hardness, tensile, and impact tests. Weld microstructures were also examined by light microscopy and scanning electron microscopy. The cryogenic treatment was found to marginally improve the hardness across the weld. The CT was found to exhibit a minimal improvement in both yield and tensile strengths of the base material and the welded joint. However, the percentage elongation was not affected by the CT process. Tensile failures occurred in the weld nugget and thermo-mechanically-affected zone interface for both untreated and treated welds. The impact toughness was found to decrease after the CT, and the effect is more pronounced in the welds than in the base material. The effect of CT on microstructures was not found to be noticeable. On the whole, it is understood that there is a slight increase in strength and hardness and a slight decrease in toughness as a result of cryogenic treatment.

*Correspondence Address, Assist. Prof. Mr. Neelamegam Vasudevan, Department of Mechanical Engineering, Sri Sairam Engineering College, Chennai 600 044, Tamil Nadu, India E-mail:

Neelamegam Vasudevan, born in 1977, received his M.E in Manufacturing Engineering at Anna University, Chennai, India in 2008 and presently pursuing his PhD in Mechanical Engineering. He has published three papers in international journals. He has around 19 years of professional experience in teaching and research. Currently, he is working as Assistant Professor of Mechanical Engineering at Sri Sairam Engineering College, Chennai, TN, India.

Dr. Govindasamy Bhavani Bhaskar, born in 1975, received his PhD in Mechanical Engineering at Anna University, Chennai, India in 2009. He has published 65 papers in international journals. He has around 23 years of professional experience in teaching and research. Presently, he is working as Associate Professor in the Department of Production Technology, Madras Institute of Technology, Anna University, TN, India.

Dr. Tadivaka Srinivasa Rao, born in 1978, received his PhD in Mechanical Engineering at Anna University, Chennai, India in 2016. He has published 9 papers in international journals. He has around 14 years of professional experience in teaching and research. Presently, he is working as Associate Professor in the Department of Mechanical Engineering, Faculty of Science and Technology, ICFAI Foundation for Higher Education, Dontanapally, Hyderabad, Telangana, India.

Dr. Muthukrishnan Mohandass, born in 1973, received his PhD in Mechanical Engineering at Anna University, Chennai, India in 2016. He has published seven papers in international journals. He has around 21 years of professional experience in teaching and research. Presently, he is working as Associate Professor in the Department of Mechanical Engineering, Sri Venkateswara College of Engineering, Sriperumbudur, TN, India.

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Published Online: 2019-11-18
Published in Print: 2019-12-02

© 2019, Carl Hanser Verlag, München

Articles in the same Issue

  1. Inhalt/Contents
  2. Contents
  3. Fachbeiträge/Technical Contributions
  4. Mechanical properties of cryogenically treated AA5083 friction stir welds
  5. Fatigue life evaluation of composite wing spar cap materials
  6. Effect of Cu addition on porous NiTi SMAs produced by self-propagating high-temperature synthesis
  7. Optimized random sampling for the load level method in Wöhler tests
  8. Monte Carlo simulation and evaluation of burst strength of pressure vessels
  9. Stress analysis of a Wankel engine eccentric shaft under varied thermal conditions
  10. Effectiveness of Ti micro-alloying for the suppression of Fe impurities in AZ91 Mg alloys and associated corrosion properties
  11. Mechanical properties of hybrid fiber reinforced concrete and a nondestructive evaluation
  12. Multi-objective optimization of an intersecting elliptical pressure hull as a means of buckling pressure maximizing and weight minimization
  13. Preload dependent material properties of lamination stacks for electric machines
  14. Effect of inoculant type and treatment material quantity on properties of vermicular graphite cast iron rail vehicle brake discs
  15. Effects of the chemical treatment of avocado pear wood filler on the properties of LDPE composites
  16. Uncertainty analysis of cutting parameters during grinding based on RSM optimization and Monte Carlo simulation
  17. Applicability of compact tension specimens for evaluation of the plane-strain fracture toughness of steel
https://doi.org/10.3139/120.111430

Articles in the same Issue

  1. Inhalt/Contents
  2. Contents
  3. Fachbeiträge/Technical Contributions
  4. Mechanical properties of cryogenically treated AA5083 friction stir welds
  5. Fatigue life evaluation of composite wing spar cap materials
  6. Effect of Cu addition on porous NiTi SMAs produced by self-propagating high-temperature synthesis
  7. Optimized random sampling for the load level method in Wöhler tests
  8. Monte Carlo simulation and evaluation of burst strength of pressure vessels
  9. Stress analysis of a Wankel engine eccentric shaft under varied thermal conditions
  10. Effectiveness of Ti micro-alloying for the suppression of Fe impurities in AZ91 Mg alloys and associated corrosion properties
  11. Mechanical properties of hybrid fiber reinforced concrete and a nondestructive evaluation
  12. Multi-objective optimization of an intersecting elliptical pressure hull as a means of buckling pressure maximizing and weight minimization
  13. Preload dependent material properties of lamination stacks for electric machines
  14. Effect of inoculant type and treatment material quantity on properties of vermicular graphite cast iron rail vehicle brake discs
  15. Effects of the chemical treatment of avocado pear wood filler on the properties of LDPE composites
  16. Uncertainty analysis of cutting parameters during grinding based on RSM optimization and Monte Carlo simulation
  17. Applicability of compact tension specimens for evaluation of the plane-strain fracture toughness of steel
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