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PENGARUH VARIASI ARUS PADA PENGELASAN A36 DAN SS304 DENGAN KAMPUH U TERHADAP SIFAT MEKANIK SAMBUNGAN

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Dissimilar metal welding between carbon steel and stainless steel is widely used in industrial applications due to its ability to combine good mechanical properties with excellent corrosion resistance. This study aims to investigate the effect of welding current variation on the mechanical properties and microstructure of dissimilar welded joints between ASTM A36 steel and AISI 304 stainless steel using the Shielded Metal Arc Welding (SMAW) process with E308L electrodes and a U-groove joint. The welding currents applied were 80 A, 100 A, and 120 A. An experimental method was employed, including Charpy impact testing, Vickers hardness testing, and microstructural observation. The results showed that increasing the welding current improved the quality of the welded joint. The highest impact energy was obtained at 120 A with a value of 17.333 J, while the lowest value was recorded at 80 A with 8.916 J. Hardness testing indicated that the weld metal region exhibited higher hardness values than the base metal and Heat Affected Zone (HAZ). Microstructural observations revealed that the weld metal was dominated by austenite and delta ferrite phases, while the ASTM A36 base metal consisted mainly of ferrite and pearlite, and the AISI 304 base metal was dominated by austenite. It can be concluded that a welding current of 120 A produced the best joint quality, characterized by higher impact energy, better penetration, and a more homogeneous microstructure

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Detail Information

Series Title

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Call Number

T2013492026

Publisher

Indralaya : Prodi Teknik Mesin, Fakultas Teknik Universitas Sriwijaya., 2026

Collation

xxix, 112 hlm.; ilus.; tab.; 29 cm.

Language

Indonesia

ISBN/ISSN

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Classification

671.520 7

Content Type

Text

Media Type

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Carrier Type

-

Edition

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Subject(s)

Prodi Teknik Mesin
Teknik Pengelasan dan Solder

Specific Detail Info

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Statement of Responsibility

MI

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