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Experimental evidence of liquid feeding during solidification of a steel

Journal Article


Abstract


  • Sufficient liquid feeding under constrained solidification conditions like, those experienced in welding and casting, is vital to avoid solidification cracking. We present the results of unique in-situ experimental observations of liquid feeding in a solidifying steel melt pool. Liquid feeding was observed in the inter-cellular regions during the terminal stage of solidification. An average liquid flow speed of 450–500 μm s −1 was found. A pressure difference of the order of 104 Pa is calculated to cause the liquid flow. The rate of solidification shrinkage and the rate of deformation were found to be less than the rate of liquid feeding.

Authors


  •   Agarwal, Gautam (external author)
  •   Amirthalingam, Murugaiyan (external author)
  •   Moon, Suk Chun
  •   Dippenaar, Rian J.
  •   Richardson, Ian (external author)
  •   Hermans, Marcel (external author)

Publication Date


  • 2018

Citation


  • Agarwal, G., Amirthalingam, M., Moon, S. C., Dippenaar, R. J., Richardson, I. M. & Hermans, M. J. M. (2018). Experimental evidence of liquid feeding during solidification of a steel. Scripta Materialia, 146 105-109.

Scopus Eid


  • 2-s2.0-85034626179

Ro Metadata Url


  • http://ro.uow.edu.au/eispapers1/878

Number Of Pages


  • 4

Start Page


  • 105

End Page


  • 109

Volume


  • 146

Place Of Publication


  • United Kingdom

Abstract


  • Sufficient liquid feeding under constrained solidification conditions like, those experienced in welding and casting, is vital to avoid solidification cracking. We present the results of unique in-situ experimental observations of liquid feeding in a solidifying steel melt pool. Liquid feeding was observed in the inter-cellular regions during the terminal stage of solidification. An average liquid flow speed of 450–500 μm s −1 was found. A pressure difference of the order of 104 Pa is calculated to cause the liquid flow. The rate of solidification shrinkage and the rate of deformation were found to be less than the rate of liquid feeding.

Authors


  •   Agarwal, Gautam (external author)
  •   Amirthalingam, Murugaiyan (external author)
  •   Moon, Suk Chun
  •   Dippenaar, Rian J.
  •   Richardson, Ian (external author)
  •   Hermans, Marcel (external author)

Publication Date


  • 2018

Citation


  • Agarwal, G., Amirthalingam, M., Moon, S. C., Dippenaar, R. J., Richardson, I. M. & Hermans, M. J. M. (2018). Experimental evidence of liquid feeding during solidification of a steel. Scripta Materialia, 146 105-109.

Scopus Eid


  • 2-s2.0-85034626179

Ro Metadata Url


  • http://ro.uow.edu.au/eispapers1/878

Number Of Pages


  • 4

Start Page


  • 105

End Page


  • 109

Volume


  • 146

Place Of Publication


  • United Kingdom