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Septian Aldo Serena
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Mikrostruktur dan Kekerasan Sambungan Pengelasan Gesek Disimilar Pipa Tembaga/Kuningan (Cu/Cu-Zn) Aris Widyo Nugroho; Totok Suwanda; Septian Aldo Serena
Semesta Teknika Vol 19, No 1 (2016): MEI 2016
Publisher : Universitas Muhammadiyah Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18196/st.v19i1.2047

Abstract

This study is focused on the influence of friction time on the microstructure and the hardness values of butt  welded dissimilar pure copper/brass alloy pipes by continuous drive friction  welding. Five variation of friction times were applied during the welding processes. The joint were evaluated by microstructural analysis  and microhardness measurements. The results show that three distincs region were observed.  The grain formation in the three regions were revealed.  It was found that the hardness of the joints especially in HAZ regions were lower than that of the copper and brass base metals, while the hardness of the TMAZ region was higher than that of the copper base metal and the brass base metal. The microhardness values in the TMAZ  increased  with increasing the friction time up to 30 s and then decreased with incresing friction time.
Co-Authors Aris Widyo Nugroho Totok Suwanda