Optimization of GMAW Parameters for Marine-Grade Aluminium Alloy 5083-H116: Weld Quality and Mechanical Performance Assessment
M.F.M. WAHID, N.H.F. HAMZAH, S.R. SHAMSUDIN, M. MUSA
Abstract. The demand for lightweight and corrosion-resistant materials in shipbuilding has led to the widespread use of aluminium alloys, particularly 5083-H116. Gas Metal Arc Welding (GMAW) is commonly used for joining these alloys due to its versatility and productivity. However, selecting optimal process parameters is critical to achieving defect-free welds with desirable mechanical properties. This study examines the impact of varying welding current and voltage on weld quality in aluminum alloy 5083-H116. Welds were assessed using dye penetrant inspection and tensile tests in both longitudinal and transverse orientations. The results showed that high current (170 A) and corresponding voltage (22 V) offered superior performance, reducing surface defects and improving mechanical strength. These findings serve as a practical guideline for improving GMAW application in aluminium shipbuilding, promoting structural reliability, and minimizing rework or failure risk.
Keywords
GMAW, Aluminium 5083-H116, Welding Parameter Optimization, Marine Structures, Non-Destructive Testing, Tensile Properties
Published online 1/15/2026, 6 pages
Copyright © 2026 by the author(s)
Published under license by Materials Research Forum LLC., Millersville PA, USA
Citation: M.F.M. WAHID, N.H.F. HAMZAH, S.R. SHAMSUDIN, M. MUSA, Optimization of GMAW Parameters for Marine-Grade Aluminium Alloy 5083-H116: Weld Quality and Mechanical Performance Assessment, Materials Research Proceedings, Vol. 60, pp 20-25, 2026
DOI: https://doi.org/10.21741/9781644903971-3
The article was published as article 3 of the book Frontiers of Chemical and Materials Engineering
Content from this work may be used under the terms of the Creative Commons Attribution 3.0 license. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI.
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