| Autor: |
Kar, Jyotirmaya |
| Zdroj: |
Transactions of the Indian Institute of Metals; Jan2024, Vol. 77 Issue 1, p229-236, 8p |
| Abstrakt: |
Autogenous joints of Inconel-718 to AISI-316L sheets produced using the electron beam welding process were subjected to defect analysis by the X-ray computed tomography technique. Such investigations revealed variations in undercut and porosity formation tendencies for change in weld processing conditions. The undercut rate has been found to be effectively reduced for the double-side pass and oscillating beam (infinity pattern) conditions. An increase in welding speed from 750 to 1500 mm/min has resulted in the formation of finer pores and reduced its count by 35%. For the same heat input rate, the double-side pass joint has reported formation of uniformly distributed pores with an 80% reduction in number. Compared to static beam joints, the oscillating beam welds have reported an extensive decrease in porosity content (62–87%) and pore-size distribution. The triangular and infinity patterns have reported a more efficient reduction in porosities and size distribution than other patterns. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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