?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rft.title=EFEKTIVITAS+EKSTRAK+KULIT+BUAH+MAJA+SEBAGAI+INHIBITOR%0D%0APADA+BAJA+KARBON+AISI+1020+DALAM+MEDIUM+KOROSIF%0D%0ANaCl+3%25+DENGAN+VARIASI+WAKTU+PERENDAMAN&rft.creator=Ismi+Nurhayati%2C+1417041037&rft.subject=500+ilmu+pengetahuan+alam+dan+matematika&rft.subject=530+Fisika&rft.description=Abstrak.+Telah+dilakukan+penelitian+tentang+efektivitas+ekstrak+kulit+buah+maja%0D%0Asebagai+inhibitor+pada+baja+karbon+AISI+1020+dalam+medium+korosif+NaCl+3%25%0D%0Adengan+variasi+waktu+perendaman.+Sampel+baja+karbon+AISI+1020+direndam%0D%0Adalam+medium+korosif+NaCl+3%25+tanpa+diberi+dan+dengan+diberi+inhibitor+ekstrak%0D%0Akulit+buah+maja+dengan+konsentrasi+0%2C8%25+selama+5%2C+15%2C+25%2C+35%2C+dan+45+hari.%0D%0APerhitungan+penurunan+laju+korosi+dilakukan+dengan+metode+kehilangan+berat.%0D%0AHasil+penelitian+menunjukkan+bahwa+penambahan+inhibitor+ekstrak+kulit+buah%0D%0Amaja+efektif+dalam+menurunkan+laju+korosi+sampel+dengan+efisiensi+terbesar+pada%0D%0Aperendaman+selama+35+hari%2C+yaitu+sebesar+72%2C6%25.+Hasil+karakterisasi+XRD%0D%0Amemperlihatkan+bahwa+fasa+yang+terbentuk+adalah+Fe+murni+dan+pada+sampel%0D%0Ayang+direndam+tanpa+inhibitor+muncul+juga+fasa+Fe3O4+yang+merupakan+produk%0D%0Akorosi.+Hasil+karakterisasi+SEM+menunjukkan+mikro+struktur+permukaan+sampel%0D%0Asetelah+direndam+yaitu+terdapat+retakan%2C+lubang%2C+dan+gumpalan+yang%0D%0Amengindikasikan+bahwa+sampel+telah+mengalami+korosi.+Hasil+karakterisasi+EDS%0D%0Amenunjukkan+bahwa+pada+sampel+yang+telah+direndam+terdapat+produk+korosi%0D%0Aberbentuk+senyawa+Fe+dan+O+yang+besarnya+semakin+meningkat+ditiap+waktu%0D%0Aperendaman.%0D%0AKata+kunci%3A+Baja+karbon+AISI+1020%2C+inhibitor+korosi%2C+ekstrak+kulit+buah+maja%2C%0D%0A%0D%0ANaCl%2C+XRD%2C+dan+SEM-EDS.%0D%0AAbstract.+Research+has+been+conducted+on+the+effectiveness+of+maja+fruit+skin%0D%0Aextract+as+an+inhibitor+of+carbon+steel+AISI+1020+in+a+corrosive+medium+NaCl+3%25%0D%0Awith+variations+in+immersion+time.+The+samples+carbon+steel+AISI+1020+were%0D%0Aimmersed+in+corrosive+medium+NaCl+3%25+without+being+given+and+given+the%0D%0Ainhibitor+of+maja+skin+extract+with+a+concentration+of+0.8%25+for+5%2C+15%2C+25%2C+35%2C+and%0D%0A45+days.+Calculation+of+reduction+in+corrosion+rate+is+carried+out+by+the+method+of%0D%0Aweight+loss.+The+results+showed+that+the+addition+of+the+maja+fruit+skin+extract%0D%0Ainhibitor+was+effective+in+reducing+the+corrosion+rate+of+the+sample+with+the%0D%0Agreatest+efficiency+at+35+days+immersion%2C+which+was+equal+to+72.6%25.+The+results%0D%0Aof+XRD+characterization+show+that+the+phase+formed+is+pure+Fe+and+Fe3O4+phase%0D%0Awhich+is+a+corrosion+product+is+immersed+without+inhibitor.+The+results+of+SEM%0D%0Acharacterization+showed+that+the+microstructure+of+the+surface+of+the+sample+after%0D%0Aimmersion+was+there+were+cracks%2C+holes%2C+and+lumps+which+indicated+that+the%0D%0Asample+had+been+corroded.+The+results+of+EDS+characterization+show+that+in+the%0D%0Asoaked+sample+there+were+corrosion+products+in+the+form+of+Fe+and+O+compounds%0D%0Awhose+magnitude+increased+every+time+immersion.%0D%0AKey+words.+Low+carbon+AISI+1020%2C+corrosion+inhibition%2C+the+exract+of+maja+skin%2C%0D%0A%0D%0ANaCl%2C+XRD%2C+and+SEM-EDS.&rft.publisher=FAKULTAS+MATEMATIKA+DAN+ILMU+PENGETAHUAN+ALAM&rft.date=2019&rft.type=Skripsi&rft.type=NonPeerReviewed&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F57372%2F1%2FABSTRAK.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F57372%2F2%2FSKRIPSI%2520FULL.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F57372%2F3%2FSKRIPSI%2520TANPA%2520BAB%2520PEMBAHASAN.pdf&rft.identifier=++Ismi+Nurhayati%2C+1417041037++(2019)+EFEKTIVITAS+EKSTRAK+KULIT+BUAH+MAJA+SEBAGAI+INHIBITOR+PADA+BAJA+KARBON+AISI+1020+DALAM+MEDIUM+KOROSIF+NaCl+3%25+DENGAN+VARIASI+WAKTU+PERENDAMAN.++FAKULTAS+MATEMATIKA+DAN+ILMU+PENGETAHUAN+ALAM%2C+UNIVERSITAS+LAMPUNG.+++++&rft.relation=http%3A%2F%2Fdigilib.unila.ac.id%2F57372%2F