Investigation of Welding Speed on Fusion Zone Characteristics of GTA Welded AZ31B Magnesium Alloy

Authors

  • Subravel V Department of Mechanical Engineering, Government College of Engineering, Thanjavur, Tamil Nadu- 614612, India
  • Thambidurai M Department of Mechanical Engineering, Government College of Engineering, Thanjavur, Tamil Nadu- 614612, India

DOI:

https://doi.org/10.37255/jme.v4i4pp139-143

Keywords:

Magnesium alloy, GTA welding, tensile properties, Microstructure

Abstract

In this investigation an attempt has been made to study the effect of welding on fusion characteristics of pulsed current gas tungsten arc welded AZ31B magnesium alloy joints. Five joints were fabricated using different levels of welding speed (105 mm/min –145 mm/min). From this investigation, it is found that the joints fabricated using a welding speed of 135 mm/min yielded superior tensile properties compared to other joints. The formation of finer grains and higher hardness in fusion zone and uniformly distributed precipitates are the main reasons for the higher tensile properties of these joints.

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References

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Padmanaban G., and Balasubramanian, V (2011), “Influences of Pulsed Current Gas Tungsten Arc Welded Parameters on Mechanical and Metallurgical Properties of AZ31B Magnesium Alloys”, Metals and Materials International., Vol.17 (5), 831- 839.

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Published

2019-12-01

How to Cite

[1]
“Investigation of Welding Speed on Fusion Zone Characteristics of GTA Welded AZ31B Magnesium Alloy”, JME, vol. 14, no. 4, pp. 139–143, Dec. 2019, doi: 10.37255/jme.v4i4pp139-143.

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