Unusual wavy weld pool boundary from dimensional analysis

A. Arora, G. G. Roy, Tarasankar Debroy

Research output: Contribution to journalArticle

23 Citations (Scopus)

Abstract

The geometry of a weld pool affects its solidification behavior. Here we show that the welding parameters and material properties responsible for the formation of unusual, wavy fusion boundaries can be identified from heat and fluid flow calculations and confirmed by independent experiments. These parameters and properties can be expressed by dimensionless numbers using the Buckingham π-theorem. The wavy boundary originates from the interaction of counter-rotating liquid metal loops at high Marangoni numbers. The Prandtl number affects the type of inflection.

Original languageEnglish (US)
Pages (from-to)68-71
Number of pages4
JournalScripta Materialia
Volume60
Issue number2
DOIs
StatePublished - Jan 1 2009

Fingerprint

dimensional analysis
Prandtl number
Liquid metals
Solidification
Flow of fluids
Materials properties
Welding
Welds
Fusion reactions
rotating liquids
Heat transfer
dimensionless numbers
Geometry
liquid metals
welding
heat transmission
solidification
fluid flow
counters
theorems

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering
  • Metals and Alloys

Cite this

Arora, A. ; Roy, G. G. ; Debroy, Tarasankar. / Unusual wavy weld pool boundary from dimensional analysis. In: Scripta Materialia. 2009 ; Vol. 60, No. 2. pp. 68-71.
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Unusual wavy weld pool boundary from dimensional analysis. / Arora, A.; Roy, G. G.; Debroy, Tarasankar.

In: Scripta Materialia, Vol. 60, No. 2, 01.01.2009, p. 68-71.

Research output: Contribution to journalArticle

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