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

22 Scopus citations

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

All Science Journal Classification (ASJC) codes

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

Fingerprint Dive into the research topics of 'A pathway to microstructural refinement through double pulsed gas metal arc welding'. Together they form a unique fingerprint.

  • Cite this