?url_ver=Z39.88-2004&rft_id=1317041035&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rft.title=PENGARUH+RAPAT+ARUS+DAN+WAKTU+ELEKTROPLATING+Cu-Mn+TERHADAP+LAJU+KOROSI+BAJA+AISI+1020+DALAM+MEDIUM+KOROSIF+NaCl+3%25&rft.creator=Ratna+Noviyana%2C+1317041035&rft.subject=QC+Physics&rft.description=%0D%0ATelah+dilakukan+penelitian+mengenai+pengaruh+rapat+arus+dan+waktu+elektroplating+Cu-Mn+terhadap+laju+korosi+baja+AISI+1020+dalam+medium+korosif+NaCl+3%25.+Pengujian+laju+korosi+dilakukan+menggunakan+metode+kehilangan+berat+dengan+merendam+sampel+dalam+medium+korosif+NaCl+selama+168+jam.+Hasil+penelitian+menunjukkan+bahwa+semakin+lama+waktu+elektroplating+dan+semakin+besar+rapat+arus+yang+digunakan+maka+laju+korosi+akan+semakin+berkurang.+Hal+ini+karena+semakin+banyaknya+ion+Cu+dan+Mn+yang+mengendap+pada+permukaan+sampel+setelah+elektroplating.+Laju+korosi+terendah+diperoleh+pada+waktu+elektroplating+50+detik+dan+rapat+arus+75+mA%2Fcm2+yaitu+0%2C053+mmpy.+Hasil+analisis+mikroskop+metalurgi+menunjukkan+bahwa+lapisan+pada+sampel+hasil+elektroplating+tampak+lebih+tebal+dengan+meningkatnya+rapat+arus+dan+waktu+elektroplating%2C+sedangkan+setelah+uji+korosi+lapisan+menjadi+berwarna+hitam+dan+beberapa+lapisan+sampel+terdapat+retakan+akibat+terkorosi.+Hasil+karakterisasi+XRD+memperlihatkan+raw+material+baja+AISI+1020+setelah+uji+korosi+mengalami+perubahan+fasa+dari+besi+menuju+bentuk+oksidanya+yaitu+fasa+magnetite+(Fe3O4).+%0D%0A%0D%0AKata+kunci%3A+Baja+AISI+1020%2C+elektroplating+Cu-Mn%2C+dan+NaCl.%0D%0A%0D%0A%0D%0AABSTRACT%0D%0A%0D%0A%0D%0A%0D%0AThe+influence+of+current+density+and+time+of+electroplating+Cu-Mn+to+corrosion+rate+of+Steel+AISI+1020+in+corrosive+medium+NaCl+3%25+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+of+electroplating+and+the+greater+current+density+that+are+used%2C+the+corrosion+rate+will+be+decreased.+This+is+because+the+increasing+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+and+current+density+75+mA%2Fcm2+that+is+0%2C053+mmpy.+The+analysis+results+of+metallurgical+microscope+showed+that+the+coating+looks+thicker+with+increasing+current+density+and+time+of+electroplating%2C+while+after+corrosion+rate+tested+the+coatings+being+black+and+a+few+coating+of+samples+were+cracked+due+to+corrosion.+The+X-Ray+Diffraction+(XRD)+characterization+result+showed+that+the+phase+of+AISI+1020+raw+material+after+corrosion+tested+is+changed+from+pure+iron+(Fe)+to+magnetite+phase+(Fe3O4).%0D%0A%0D%0AKeywords%3A+Steel+AISI+1020%2C+Electroplating+Cu-Mn%2C+NaCl+3%25%0D%0A&rft.publisher=FAKULTAS++MATEMATIKA+DAN+ILMU+PENGETAHUAN+ALAM&rft.date=2017-11-28&rft.type=Skripsi&rft.type=NonPeerReviewed&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F29361%2F1%2FABSTRAK.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F29361%2F2%2FSKRIPSI%2520TANPA%2520BAB%2520PEMBAHASAN.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F29361%2F3%2FSKRIPSI%2520FULL.pdf&rft.identifier=++Ratna+Noviyana%2C+1317041035++(2017)+PENGARUH+RAPAT+ARUS+DAN+WAKTU+ELEKTROPLATING+Cu-Mn+TERHADAP+LAJU+KOROSI+BAJA+AISI+1020+DALAM+MEDIUM+KOROSIF+NaCl+3%25.++FAKULTAS+MATEMATIKA+DAN+ILMU+PENGETAHUAN+ALAM%2C+UNIVERSITAS+LAMPUNG.+++++&rft.relation=http%3A%2F%2Fdigilib.unila.ac.id%2F29361%2F