Dilution in single pass arc welds

Journal Article · Sat Jun 01 04:00:00 EDT 1996 · Metallurgical Transactions, B

DOI:https://doi.org/10.1007/BF02914913· OSTI ID:271602

DuPont, J N; Marder, A R ^[1]

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1. Lehigh Univ., Bethlehem, PA (United States). Dept. of Materials Science and Engineering

A study was conducted on dilution of single pass arc welds of type 308 stainless steel filler metal deposited onto A36 carbon steel by the plasma arc welding (PAW), gas tungsten arc welding (GTAW), gas metal arc welding (GMAW), and submerged arc welding (SAW) processes. Knowledge of the arc and melting efficiency was used in a simple energy balance to develop an expression for dilution as a function of welding variables and thermophysical properties of the filler metal and substrate. Comparison of calculated and experimentally determined dilution values shows the approach provides reasonable predictions of dilution when the melting efficiency can be accurately predicted. The conditions under which such accuracy is obtained are discussed. A diagram is developed from the dilution equation which readily reveals the effect of processing parameters on dilution to aid in parameter optimization.

• Sponsoring Organization: USDOE
• OSTI ID: 271602
• Journal Information: Metallurgical Transactions, B, Journal Name: Metallurgical Transactions, B Journal Issue: 3 Vol. 27; ISSN MTTBCR; ISSN 0360-2141
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
CARBON STEELS
CORRELATIONS
ENERGY BALANCE
GAS METAL-ARC WELDING
GAS TUNGSTEN-ARC WELDING
LIQUID METALS
MIXING
OPTIMIZATION
PLASMA ARC WELDING
PREDICTION EQUATIONS
STAINLESS STEEL-308
SUBMERGED ARC WELDING
WELDING