Effect of Pulse Current Frequency on Microstructure and Hot Corrosion Behavior of Tungsten Inert Gas-Welded Joints of N155 Superalloy
Volume: 30, Issue: 10, Pages: 7494 - 7509
Published: May 17, 2021
Abstract
Thin sheets of N155 superalloy with Inconel 718 filler metal were welded using tungsten inert gas (TIG) process with different frequencies of the pulse current system. The present study aims to compare the hot corrosion resistance of the weld metal of samples with different frequencies in 90% Na2SO4-10% NaCl molten salt environment at 950±5 °C. The results of the hot corrosion test indicated that the sample with optimal frequency (240 Hz) could...
Paper Details
Title
Effect of Pulse Current Frequency on Microstructure and Hot Corrosion Behavior of Tungsten Inert Gas-Welded Joints of N155 Superalloy
Published Date
May 17, 2021
Volume
30
Issue
10
Pages
7494 - 7509
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