?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rft.title=PENGARUH+LAMA+PEMANASAN%2C+PENDINGINAN+SECARA+CEPAT+DAN+TEMPERING+TERHADAP+SIFAT+TANGGUH+BAJA+PEGAS+DAUN+AISI+NO.+9260&rft.creator=Desti+Nurjayanti%2C+0817041023&rft.subject=+&rft.description=ABSTRAK%0D%0A%0D%0A%0D%0ATelah+dilakukan+penelitian+mengenai+pengaruh+pemanasan%2C+pendinginan+secara+cepat%2C+dan+tempering+terhadap+sifat+tangguh+baja+pegas+daun+AISI+No.+9260.+Penelitian+ini+dilakukan+untuk+mengetahui+sifat+tangguh+baja+pegas+daun+yang+biasanya+dipakai+pada+kendaraan+bermotor+berdasarkan+proses+pemanasan%2C+pendinginan+secara+cepat+menggunakan+oli%2C+dan+tempering+sehingga+dihasilkan+data+tentang+ketangguhan+baja+pegas+daun.+Proses+pemanasan+dilakukan+dengan+suhu+780+oC+dengan+waktu+tahan+40+dan+60+menit+yang+selanjutnya+didinginkan+secara+cepat+menggunakan+oli.+Proses+pemanasan+merubah+fasa+baja+menjadi+martensit+yang+bersifat+keras+dan+dilanjutkan+dengan+proses+tempering+pada+suhu+400+oC+dan+600+oC+dengan+waktu+tahan+40+menit+yang+membuat+fasa+baja+berubah+menjadi+martensit+temper+dan+ferit%2C+sehingga+kekerasan+baja+menurun+dan+ketangguhan+meningkat.+Sebelum+dilakukan+pemanasan%2C+nilai+ketangguhan+baja+0%2C23+J%2Fmm2+lebih+kecil+dari+baja+yang+telah+diberikan+proses+pemanasan%2C+pendinginan+secara+cepat%2C+dan+tempering+yaitu+sebesar+0.803+J%2Fmm2.%0D%0AKata+Kunci%3A+Baja+pegas+daun%2C+tempering%2C+quenching%2C+ketangguhan+baja+(Impact)%2C+mikro+struktur.%0D%0A%0D%0A%0D%0AABSTRACT%0D%0A%0D%0AWe+have+discovered+the+effect+of+heating%2C+quenching%2C+and+tempering+of+leaf+spring+steel+AISI+No.+9260.+It+was+conducted+to+determine+the+impact+value+of+leaf+springs+steel+that+are+used+on+motor+vehicles.+The+heating%2C+quenching+with+oil%2C+and+tempering+on+the+impact+of+leaf+springs+steel+was+obtained+to+produce+data.+The+steel+were+heated+at+780+%C2%B0C+for+40+and+60+minutes+followed+with+oil+cooling.+Heating+process+was+changed+the+steel+phase+to+hardly+martensite+that+obtained+by+tempering+at+a+temperature+of+400+oC+and+600+%C2%B0C+for+40+minutes.+It+was+made+the+steel+phase+transformed+into+tempered+martensite+and+ferrite%2C+so+the+steel+has+hardness+decreased+and+impact+values+was+increased.+Before+that+process%2C+the+impact+values+of+steel+is+0.23+J%2Fmm2+smaller+than+the+steel+which+has+been+given+the+heating%2C+quenching%2C+and+tempering+approach+equal+to+0.803+J%2Fmm2.%0D%0AKey+words%3A+Leaf+springs+steel%2C+tempering%2C+quenching%2C+impact+test%2C+micro+structure.&rft.publisher=FAKULTAS+MIPA&rft.date=2013-04-05&rft.type=Skripsi&rft.type=NonPeerReviewed&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F5643%2F1%2F2%2520ii.ABSTRAK.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F5643%2F2%2F1%2520i.COVER.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F5643%2F3%2F6%2520vi.PERSETUJUAN.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F5643%2F4%2F5%2520v.PENGESAHAN.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F5643%2F5%2F7%2520vii.PERNYATAAN.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F5643%2F6%2F8%2520viii.RIWAYAT%2520HIDUP.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F5643%2F7%2F10%2520xi.MOTTO.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F5643%2F8%2F9%2520x.PERSEMBAHAN.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F5643%2F9%2F12%2520xiii.SANWACANA.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F5643%2F10%2F13%2520xv.DAFTAR%2520ISI.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F5643%2F11%2F15%2520xix.DAFTAR%2520TABEL.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F5643%2F12%2FBAB%2520I.PENDAHULUAN.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F5643%2F13%2FBAB%2520II.TINJAUAN%2520PUSTAKA.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F5643%2F14%2FBAB%2520III.METODELOGI%2520PENELITIAN.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F5643%2F15%2FBAB%2520IV.HASIL%2520PENELITIAN%2520DAN%2520PEMBAHASAN.new.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F5643%2F16%2FBAB%2520V.KESIMPULAN.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F5643%2F17%2FDAFTAR%2520PUSTAKA.pdf&rft.identifier=++Desti+Nurjayanti%2C+0817041023++(2013)+PENGARUH+LAMA+PEMANASAN%2C+PENDINGINAN+SECARA+CEPAT+DAN+TEMPERING+TERHADAP+SIFAT+TANGGUH+BAJA+PEGAS+DAUN+AISI+NO.+9260.++FAKULTAS+MIPA%2C+UNIVERSITAS+LAMPUNG.+++++&rft.relation=http%3A%2F%2Fdigilib.unila.ac.id%2F5643%2F