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Pengaruh Waktu Elektroplating Terhadap Laju Korosi Baja AISI 1020 Dalam Medium Korosif NaCl 3% Aisiyah Putri Sandi; Ediman Ginting Suka; Yayat Iman Supriyatna
Jurnal Teori dan Aplikasi Fisika Vol. 5 No. 2 (2017): Jurnal Teori dan Aplikasi Fisika
Publisher : Department of Physics, Faculty of Mathematics and Natural Sciences, University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jtaf.v5i2.158

Abstract

The influence of electroplating time Zn-Mn to corrosion rate of AISI 1020 steel in corrosive medium NaCl 3% had been researching. This research used time variation 10, 20, 30, 40, and 50 seconds. Corrosion rate testing is done by soaking the steel for 168 hours in corrosive medium NaCl and calculated with the loss of steel weight. The result showed that the longer electroplating time that used, caused the increasing of mass and Zn-Mn content of steel. It can make the corrosion rate will be decreased. The lowest corrosion rate obtained at 50 seconds electroplating time and 60 mA/cm2 current density is 0,059 mmpy. XRD characterization of steel without electroplating after corrosion rate testing showed the changing of phase from iron into oxide phase magnetite (Fe3O4). The analyze of metallurgical microscope showed the better layer with the increasing time, whereas after corrosion rate testing the steel surface were cracks.
Pengaruh Waktu ElektroplatingCu-Mn Terhadap Laju Korosi Baja AISI 1020 Dalam Medium Korosif NaCl 3% Ratna Noviyana; Ediman Ginting Suka; Yayat Iman Supriyatna
Jurnal Teori dan Aplikasi Fisika Vol. 5 No. 2 (2017): Jurnal Teori dan Aplikasi Fisika
Publisher : Department of Physics, Faculty of Mathematics and Natural Sciences, University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jtaf.v5i2.159

Abstract

The influence of electroplating time Cu-Mn to corrosion rate of Steel AISI 1020 in corrosive medium NaCl 3% had been researched. Corrosion rate testing is used weight loss method by soaking the samples in the corrosive medium NaCl for 168 hours. The results showed that the longer time electroplating that used, the corrosion rate will be decreased. This is because the growing number of Cu and Mn ions deposited on the surface of the sample after electroplating. The lowest corrosion rate obtained at the time of 50 seconds that is 0.098 mmpy. The analysis results of metallurgical microscope showed that the coating looks thicker with increasing time of electroplating, while after corrosion rate tested thecoatings being black and a few coating of samples were cracked due to corrosion.The X-Ray Diffraction (XRD) characterization result showed thatthe phase of AISI 1020 raw material after corrosion tested is changed from pure iron (Fe) to magnetite phase (Fe3O4).
Analisa Pengaruh Penambahan Variasi Bubuk Andesit Terhadap Karakteristik Kuat Tekan Mortar Herullah Herullah; Pulung Karo Karo; Yayat Iman Supriyatna; Muhammad Amin
Jurnal Teori dan Aplikasi Fisika Vol. 6 No. 1 (2018): Jurnal Teori dan Aplikasi Fisika
Publisher : Department of Physics, Faculty of Mathematics and Natural Sciences, University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jtaf.v6i1.161

Abstract

Co-Authors Aisiyah Putri Sandi Ediman Ginting Suka Herullah Herullah Muhammad Amin Pulung Karo-Karo Ratna Noviyana