Article Per Year (5 Year)
p-Index From 2021 - 2026
0.23
P-Index
This Author published in this journals
All Journal Jurnal Rekayasa Mesin
Muharnif
Unknown Affiliation
Mechanical Engineering

Published : 1 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 1 Documents
Search

 1 
Corrosion Behavior of Al6061-T6 by GTAW with Different Filler Metals Suherman, Suherman; Muharnif; Lubis, Riadini Wanty; Irfansyah; F.X.A , Wahyudianto
Jurnal Rekayasa Mesin Vol. 20 No. 3 (2025): Volume 20, Nomor 3, Desember 2025
Publisher : Mechanical Engineering Department - Semarang State Polytechnic

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32497/jrm.v20i3.6496

Abstract

This study aims to compare the effect of filler metal of gas tungsten arc welding (GTAW) on the corrosion rate of Al6061 alloy weld metals. Three different filler metals, ER4043, ER4047, and ER5356, were used in the GTAW welding process. The corrosion rate characteristics of butt weld joints were studied using potentiodynamic testing in a 3.5% NaCl solution. The microstructure of the corroded weld metal was analyzed using Scanning Electron Microscopy (SEM). Results showed that filler metals affect the corrosion resistance of weld metal. It was found that ER4043 and ER4047 are more susceptible to corrosion, while ER5356 shows good corrosion resistance compared to the other filler metals. SEM observations revealed that dominant pitting corrosion was found in all welded joints and the base metal, with pit diameters ranging from 10 to 60 μm. Moreover, it was found that the Heat-Affected Zone was more susceptible to corrosion compared to the weld metal zone. Finally, welding of Al6061 using ER5356 filler metal is more recommended due to its superior resistance to pitting corrosion compared to the other types of joints.
Co-Authors F.X.A , Wahyudianto Irfansyah Lubis, Riadini Wanty Suherman, Suherman