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 language | English (US) |
|---|---|
| Pages (from-to) | 68-71 |
| Number of pages | 4 |
| Journal | Scripta Materialia |
| Volume | 60 |
| Issue number | 2 |
| DOIs | |
| State | Published - Jan 1 2009 |
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All Science Journal Classification (ASJC) codes
- Materials Science(all)
- Condensed Matter Physics
- Mechanics of Materials
- Mechanical Engineering
- Metals and Alloys
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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 journal › Article
TY - JOUR
T1 - Unusual wavy weld pool boundary from dimensional analysis
AU - Arora, A.
AU - Roy, G. G.
AU - Debroy, Tarasankar
PY - 2009/1/1
Y1 - 2009/1/1
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=54249130182&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=54249130182&partnerID=8YFLogxK
U2 - 10.1016/j.scriptamat.2008.08.035
DO - 10.1016/j.scriptamat.2008.08.035
M3 - Article
AN - SCOPUS:54249130182
VL - 60
SP - 68
EP - 71
JO - Scripta Materialia
JF - Scripta Materialia
SN - 1359-6462
IS - 2
ER -