Effects of Magnetic Stirring and Grain Structure on Ultrasonic Characteristics in Inconel Overlay-Welds

Hiroyuki Kokawa, Yutaka Sato, A. Ishida, T. Arakawa, K. Hirano

Research output: Contribution to conferencePaperpeer-review

8 Citations (Scopus)

Abstract

Application of magnetic stirring during TIG arc welding improved sensitivity of ultrasonic inspection by modifying the grain structure in Inconel 82 overlay-weld metal on SM490A plate. Orientation imaging microscopy(OIM) indicated that the efficiency of ultrasonic beam transmission increased with decreases in the average grain size and the frequency of high angle grain boundaries in the weld metal. The magnetic stirring during arc welding resulted in smaller grain size and lower frequency of high angle grain boundaries in the weld metal than the ordinary welding, and did not destroy the anisotropic grain structure, but made the grain texture stronger in the overlay-weld metal than the ordinary welding.

Original languageEnglish
Pages67-71
Number of pages5
Publication statusPublished - 1998 Dec 1
EventTrends in Welding Research: Proceedings of the 5th International Conference - Pine Mountain, GA, United States
Duration: 1998 Jun 11998 Jun 5

Other

OtherTrends in Welding Research: Proceedings of the 5th International Conference
Country/TerritoryUnited States
CityPine Mountain, GA
Period98/6/198/6/5

ASJC Scopus subject areas

  • Materials Science(all)
  • Mechanical Engineering

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