?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rft.title=ANALISIS+KETAHANAN+LELAH+BAJA+KARBON+AISI+1045+YANG+DITEMPERING&rft.creator=HENDRA+PRAWIRA%2C+0815021033&rft.subject=+&rft.description=abstrak+indonesia%0D%0ABaja+karbon+sedang+merupakan+material+yang+banyak+diproduksi+dan+digunakan+dalam+dunia+industri.+Baja+karbon+AISI+1045+adalah+salah+satu+jenis+baja+karbon+yang+banyak+digunakan+sebagai+bahan+pembuat+poros+untuk+komponen+mesin.+Pada+penggunaannya%2C+poros+beroperasi+menerima+beban+dinamik+dalam+waktu+yang+lama%2C+sehingga+rentan+mengalami+kegagalan+saat+digunakan+akibat+mengalami+kegagalan+lelah.+Ketahanan+lelah+suatu+baja+dipengaruhi+sifat+mekanis+dan+struktur+mikro+baja+tersebut.%0D%0APerlakuan+panas+merupakan+salah+satu+cara+yang+dilakukan+untuk+merubah+sifat+mekanis+dan+struktur+mikro+suatu+baja+dan+salah+satu+jenis+perlakuan+panas+yang+dapat+diberikan+pada+baja+AISI+1045+adalah+metode+tempering+yang+dapat+meningkatkan+keuletan+baja+tersebut.+Untuk+mengetahui+nilai+ketahanan+lelah+baja+AISI+1045+yang+telah+diberikan+perlakuan+panas+tempering%2C+dilakukan+dengan+melakukan+pengujian+ketahanan+lelah+menggunakan+alat+rotary+bending.+Adapun+metode+pengujian+yang+dilakukan+adalah+memberikan+variasi+pembebanan+sebesar+20%25%2C+30%25%2C+40%25%2C+50%25+dan+60%25+dari+nilai+tegangan+tarik+maksimum+dari+baja+tersebut%2C+serta+melakukan+pengamatan+makroskopik+tehadap+pola+perpatahan+yang+terjadi+pada+spesimen+pengujian.%0D%0AHasil+pengujian+menunjukkan+nilai+ketahanan+lelah+maksimum+yang+dicapai+adalah+1.107.150+siklus+pada+pembebanan+30%25%2C+disertai+patah+getas+pada%0D%0Apembebanan+50%25+dan+60%25%2C+patah+ulet-getas+pada+pembebanan%2C+40%25%2C+dan+patah+ulet+pada+pembebanan+30%25.%0D%0AKata+Kunci+%3A+Uji+Fatik%2C+Tempering%2C+Baja+Karbon+Sedang+AISI+1045%0D%0A%0D%0Aabstract+inggris%0D%0ASteel+is+a+material+that+is+widely+used+in+the+industrial+world.+One+of+the+widely+used+type+of+steel+is+AISI+1045+steel+as+the+material+of+the+shaft+for+the+engine+components+maker.+On+its+use%2C+the+axis+of+operation+receive+dynamic+load+in+a+long+time%2C+so+that+the+vulnerable+experienced+a+failure+when+used+due+to+experiencing+fatigue+failure.+A+weary+resilience+steel+affected+by+mechanical+properties+and+microstructure+of+the+steel.%0D%0AHeat+treatment+is+one+way+that+can+be+done+to+change+the+mechanical+properties+and+microstructure+of+steel+and+one+of+a+kind+of+heat+treatment+that+can+be+given+on+the+steel+AISI+1045+is+tempering+method+which+can+improve+the+steel+ductility.+To+find+out+the+fatigue+strength+value+of+AISI+1045+steel+that+has+been+granted+tempering+heat+treatment%2C+can+be+done+by+performing+testing+using+the+rotary+bending+testing+machine.+As+for+the+testing+method+is+done+by+giving+the+variation+of+load+by+20%25%2C+30%25%2C+40%25%2C+50%25+and+60%25+of+the+ultimate+tensile+strength+value%2C+as+well+as+do+macroscopic+observations+by+taking+action+against+the+pattern+of+the+fracture+that+occurs+in+the+test+specimens.%0D%0AThe+test+results+show+that+the+value+of+the+maximum+fatigue+strength+is+able+to+accomplish+is+1.107.150+cycle+on+the+30%25+loading%2C+accompanied+by+brittle+fracture+on+the+50%25+and+60%25+loading%2C+ductile-brittle+fracture+on+the+40%25+loading+and+ductile+fracture+on+the+30%25+loading.%0D%0AKeywords%3A+Fatigue+Test%2C+Tempering%2C+Medium+Carbon+Steel+AISI+1045&rft.publisher=Fakultas+Teknik&rft.date=2014-08-26&rft.type=Skripsi&rft.type=NonPeerReviewed&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F5390%2F1%2FABSTRACT.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F5390%2F2%2FABSTRAK.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F5390%2F3%2FCOVER%2520DALAM.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F5390%2F4%2FHALAMAN%2520PERSETUJUAN%2520.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F5390%2F5%2FHALAMAN%2520PENGESAHAN.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F5390%2F6%2FSURAT%2520PERNYATAAN%2520PENULIS.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F5390%2F7%2FRIWAYAT%2520HIDUP.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F5390%2F8%2FMOTO.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F5390%2F9%2FPERSEMBAHAN.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F5390%2F10%2FSANWACANA.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F5390%2F11%2FDAFTAR%2520ISI.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F5390%2F12%2FDAFTAR%2520TABEL.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F5390%2F13%2FDAFTAR%2520GAMBAR.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F5390%2F14%2FBAB%2520I.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F5390%2F15%2FBAB%2520II.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F5390%2F16%2FBAB%2520III.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F5390%2F17%2FBab%2520IV.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F5390%2F18%2FBAB%2520V.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F5390%2F19%2FDaftar%2520Pustaka.pdf&rft.identifier=++HENDRA+PRAWIRA%2C+0815021033++(2014)+ANALISIS+KETAHANAN+LELAH+BAJA+KARBON+AISI+1045+YANG+DITEMPERING.++Fakultas+Teknik%2C+Universitas+Lampung.+++++&rft.relation=http%3A%2F%2Fdigilib.unila.ac.id%2F5390%2F