A pathway to microstructural refinement through double pulsed gas metal arc welding

L. L. Wang, H. L. Wei, J. X. Xue, T. DebRoy

Research output: Contribution to journalArticle

19 Citations (Scopus)

Abstract

In fusion welding, variations of cooling rate and microstructure are commonly achieved by changing heat input. Here we show that the cooling rates can be adjusted and microstructural features could be refined at constant heat input while changing the pulsing parameters. The temporal variations of cooling rates, solidification growth rate and weld geometry during both single and double pulsed welding of an aluminum alloy are examined. Furthermore, microstructures of both single and double pulsed gas metal arc welding are presented to demonstrate significant microstructural refinement of double pulsed gas metal arc welds for the same heat input.

Original languageEnglish (US)
Pages (from-to)61-65
Number of pages5
JournalScripta Materialia
Volume134
DOIs
StatePublished - Jun 1 2017

Fingerprint

arc welding
Gas metal arc welding
Cooling
Welding
Welds
cooling
gases
heat
metals
Microstructure
fusion welding
microstructure
Solidification
Aluminum alloys
Fusion reactions
welding
aluminum alloys
solidification
Geometry
arcs

All Science Journal Classification (ASJC) codes

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

Cite this

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A pathway to microstructural refinement through double pulsed gas metal arc welding. / Wang, L. L.; Wei, H. L.; Xue, J. X.; DebRoy, T.

In: Scripta Materialia, Vol. 134, 01.06.2017, p. 61-65.

Research output: Contribution to journalArticle

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AU - Xue, J. X.

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