EFFECT OF ANNEALING ON MICROSTRUCTURE AND MECHANICAL PROPERTIES OF ND: YAG LASER WELDED NICKEL BASED ALLOYS

Authors

  • Shanthos Kumar G Department of Manufacturing Engineering, Annamalai University, Annamalainagar – 608002, Tamilnadu, India
  • Saravanan S Department of Mechanical Engineering, Annamalai University, Annamalainagar – 608002, Tamilnadu, India
  • Tamilchelvan P School of Mechanical Engineering, Galgotias University, Noida, Uttar Pradesh, India
  • Raghukandan K Department of Manufacturing Engineering, Annamalai University, Annamalainagar – 608002, Tamilnadu, India

Keywords:

Pulsed Nd, YAG laser welding, dissimilar materials, annealing, micro-hardness, tensile strength

Abstract

This study reports the effect of post weld annealing on the microstructure and mechanical strength of pulsed Nd: YAG laser welded Hastelloy C-276-Monel 400 sheets. The as weld microstructure reveals the dentritic mode of grain solidification, whereas, post annealing reveals a finer and columnar micro dentritic structure. Vickers micro-hardness and tensile strength of the annealed weld joints, as per standard procedure, were determined and correlated with the as-welded one. The annealed samples show marginal reduction in mechanical strength than the as-weld condition.

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References

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Published

2018-12-01

How to Cite

[1]
Shanthos Kumar G, Saravanan S, Tamilchelvan P, and Raghukandan K, “EFFECT OF ANNEALING ON MICROSTRUCTURE AND MECHANICAL PROPERTIES OF ND: YAG LASER WELDED NICKEL BASED ALLOYS”, JME, vol. 13, no. 4, pp. 190–193, Dec. 2018.