?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rft.title=PENGARUH+HEAT+TREATMENT+DENGAN+VARIASI+MEDIA+QUENCHING+AIR+GARAM+DAN+OLI+TERHADAP+STRUKTUR+MIKRO+DAN+NILAI+KEKERASAN+BAJA+PEGAS+DAUN+AISI+6135&rft.creator=ANGGUN+MERSILIA%2C+1217041005&rft.subject=Q+Science+(General)&rft.subject=QC+Physics&rft.description=Telah+dilakukan+penelitian+mengenai+pengaruh+heat+treatment+dengan+variasi+media+quenching+air+garam+dan+oli+terhadap+struktur+mikro+dan+nilai+kekerasan+baja+pegas+daun+AISI+3165.+Proses+pemanasan+dilakukan+pada+temperatur+800%E2%84%83+selama+60+menit%2C+lalu+proses+quenching+dengan+variasi+media+pendingin+100%25+air+garam++dan+campuran+50%25+air+garam+%3A+50%25+oli%2C+dan+tempering+pada+temperatur+600%E2%84%83+selama+45+menit.+Hasil+uji+komposisi+kimia+menunjukkan+baja+pegas+daun+termasuk+baja+karbon+sedang+(C%3D0%2C343%25)+dan+baja+chromium-vanadium+(AISI+6135).+Hasil+uji+kekerasan++sampel+raw+material+sebesar+42%2C27+HRc%2C+sampel+dengan+media+quenching+100%25+air+garam++sebesar+34%2C27%25+HRc%2C+dan+sampel+dengan+media+quenching+campuran+50%25+air+garam+%3A+50%25+oli+sebesar+38%2C27+HRc.+Hasil+struktur+mikro+pada+sampel+raw+material+menunjukkan+fasa+ferit+dan+perlit.+Sampel+hasil+quench-temper+menggunakan+media+quenching+100%25+air+garam+terbentuk+fasa+ferit%2C+austenit+sisa+dan+martensit+temper+yang+lebih+rapat+dan+menyebar+merata+dibandingkan+sampel+hasil+media+quenching+campuran+50%25+air+garam+%3A+50%25+oli%2C+sehingga+nilai+kekerasan+menurun.%0D%0A%0D%0A%0D%0AKata+kunci%3A+Baja+pegas+daun%2C+quenching%2C+struktur+mikro%2C+tempering%2C+uji+kekerasan.%0D%0ATHE+EFFECT+OF+HEAT+TREATMENT+WITH+VARIATIONS+OF+THE+BRINE+AND+OIL+QUENCHING+MEDIUM+TO+MICROSTRUCTURE+AND+HARDNESS+VALUE+IN+THE+LEAF+SPRING+STEEL+AISI+6135%0D%0A%0D%0A%0D%0AIt+has+been+conducted+research+the+effect+of+heat+treatment+with+variations+of+the+brine+and+oil+quenching+medium+to+microstructure+and+hardness+value+in+the+leaf+spring+steel+AISI+6135.+The+heating+process+at+a+temperature+of+800%E2%84%83+for+60+minutes+then+quenching+with+variations+of+100%25+brine+and+a+mix+of+50%25+brine+%3A+50%25+oil+quenching+medium%2Cand+tempering+at+temperature+600%E2%84%83+for+45+minutes.+Chemical+composition+test+showed+that+leaf+spring+steel+is+medium+carbon+steel+type+and+chromium-vanadium+steel+(AISI+6135).The+result+of+the+hardness+test+for+raw+material+is+42%2C2+HRc%2C+for+quenching+with+100%25+brine+is+34%2C27%25+HRc+and+for+quenching+a+mix+of+50%25+brines+%3A+50%25+oil+is+38%2C27+HRc.+The+test+result+microstructure+at+raw+material+sample+showed+ferrite+and+perlite+phase%2C+quench-temper+of+100%25+brine+formed+ferrite+retained+austenite+and+martensite+temper+phase+more+tightly%2C+evenly+spread+than+mix+50%25+brine+%3A+50%25+oil%2C+so+that+the+hardness+value+decrease.%0D%0A++%0D%0A%0D%0AKeywords%3A+Hardness+testing%2C+leaf+spring+steel%2C+microstructure%2C+quenching%2C+tempering.%0D%0A&rft.publisher=FAKULTAS+MATEMATIKA+DAN+ILMU+PENGETAHUAN+ALAM&rft.date=2016-06-21&rft.type=Skripsi&rft.type=NonPeerReviewed&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F22825%2F1%2FABSTRAK%2520%2528ABSTRACT%2529.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F22825%2F19%2FSKRIPSI%2520FULL.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F22825%2F20%2FSKRIPSI%2520TANPA%2520BAB%2520PEMBAHASAN.pdf&rft.identifier=++ANGGUN+MERSILIA%2C+1217041005++(2016)+PENGARUH+HEAT+TREATMENT+DENGAN+VARIASI+MEDIA+QUENCHING+AIR+GARAM+DAN+OLI+TERHADAP+STRUKTUR+MIKRO+DAN+NILAI+KEKERASAN+BAJA+PEGAS+DAUN+AISI+6135.++FAKULTAS+MATEMATIKA+DAN+ILMU+PENGETAHUAN+ALAM%2C+UNIVERSITAS+LAMPUNG.+++++&rft.relation=http%3A%2F%2Fdigilib.unila.ac.id%2F22825%2F