?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rft.title=PENGARUH+MEIDA+PENDINGIN+QUENCHING%0D%0APADA+BAJA+KARBON+SEDANG+AISI+104%0D%0ADENGAN+VARIASI+TEMPERATUR+DAN+NORMALIZING&rft.creator=Jeckson+Maniburi%2C+1215021081&rft.subject=620+Ilmu+teknik+dan+ilmu+yang+berkaitan&rft.description=The+formation+of+a+martensitic+structure+on+carbon+steel+can+improve+the%0D%0Amechanical+properties+of+a+material%2C+one+of+which+is+its+hardness%2C+where+the+carbon%0D%0Asteel+material+is+heat+treated+by+being+heated+at+austenite+temperature+and+cooled%0D%0Aquickly.+The+cooling+rate+and+carbon+content+will+affect+the+micro+structures%0D%0Aformed+such+as+martensite%2C+ferrite+and+pearlite.+The+purpose+of+this+study+was+to%0D%0Adetermine+the+characteristics+of+mechanical+properties+such+as+toughness+of+steel%0D%0Aand+hardness+of+steel+on+AISI+1045+steel+which+has+been+given+a+heat+treatment%0D%0Aprocess+and+cooling+process+using+water+cooling+media+with+temperature%0D%0Avariations+of+ordinary+water+cooling+media+28.2+%C2%B0C%2C+ice+1.7+%C2%B0C+%2C+Normalization%0D%0A29.1+%C2%B0C+and+raw+materials%2C+then+the+microstructure+testing+was+carried+out+to%0D%0Adetermine+the+microstructure+of+AISI+1045+steel.+The+results+obtained+in+this+study%0D%0Awere+carbon+steel+AISI+1045+that+had+been+cooled+using+ordinary+water+with+a%0D%0Atemperature+of+28.2+%C2%B0C+to+get+the+value+high+steel+toughness+(Impact+Price)%0D%0Acompared+to+other+test+specimens%2C+AISI+1045+carbon+steel+specimens+that+have%0D%0Abeen+cooled+using+ice+water+with+a+temperature+of+1.7+%C2%B0C+get+the+highest+value+of%0D%0Arock+hardness+among+other+test+specimens.+AISI+1045+medium+carbon+steel%0D%0Amicrostructure+The+normal+size+of+ferrite-pearlite+granules+is+greater+than+the+AISI%0D%0A1045+medium+carbon+steel+microstructure%2C+AISI+1045+medium+carbon+steel%0D%0Amicrostructure+is+cooled+using+ice+water+cooling+media+with+a+temperature+of+1.7%0D%0A%C2%B0C+and+ordinary+water+cooler+media+with+a+temperature+of+28.2+%C2%B0C+has+a%0D%0Amartensitic+micro+structure.%0D%0A.%0D%0AKeywords%3A+Heat+treatment%2C+Quenching%2C+Normalizing%2C+AISI+1045.%0D%0APembentukan+struktur+martensit+pada+baja+karbon+dapat+meningkatkan+sifat%0D%0Amekanik+suatu+bahan+salah+satunya+yaitu+kekerasanya%2C+dimana+material+baja%0D%0Akarbon+tersebut+dilakukan+perlakuan+panas+dengan+dipanaskan+pada+temperatur%0D%0Aaustenit+dan+didinginkan+dengan+cepat.+Laju+pendinginan+dan+kadar+karbon+akan%0D%0Amempengaruhi+struktur+mikro+yang+terbentuk+seperti+martensit%2C+ferit+dan+perlit.%0D%0ATujuan+penelitian+ini+adalah+mengetahui+karakteristik+sifat+mekanis+seperti%0D%0Aketangguhan+baja+dan+kekerasan+baja+pada+baja+AISI+1045+yang+telah+diberi%0D%0Aproses+heat+treatment+dan+dilakukan+proses+quenching+menggunakan+media%0D%0Apendingin+air+dengan+variasi+temperatur+media+pendingin+air+biasa+28%2C2+%C2%B0C%2C+es+1%2C7%0D%0A%C2%B0C%2C+Normalizing+29.1+%C2%B0C+dan+raw+material+kemudian+dilakukan+pengujian+struktur%0D%0Amikro+untuk+mengetahui+struktur+mikro+dari+baja+AISI+1045.+Hasil+yang+didapat%0D%0Apada+penelitian+ini+adalah+baja+karbon+sedang+AISI+1045+yang+telah+diquenching%0D%0Amenggunakan+air+biasa+dengan+temperatur+28%2C2+%C2%B0C+mendapatkan+nilai%0D%0Aketangguhan+baja+(Harga+Impak)+yang+tinggi+dibandingkan+spesimen+uji+lainnya%2C%0D%0Aspesimen+baja+karbon+AISI+1045+yang+telah+diqeunching+menggunakan+air+es%0D%0Adengan+temperatur+1%2C7+%C2%B0C+mendapatkan+nilai+kekerasan+rockwell+yang+paling%0D%0Atinggi+diantara+spesimen+uji+lainnya.+Struktur+mikro+baja+karbon+sedang+AISI%0D%0A1045+Normalizing+ukuruan+butir+ferit-+perlit+lebih+besar+yang+dibandingkan%0D%0Adengan+struktur+mikro+baja+karbon+sedang+AISI+1045+raw+material%2C+Struktur+mikor%0D%0Abaja+karbon+sedang+AISI+1045+yang+diquenching+menggunakan+media+pendingin%0D%0Aair+es+dengan+temperatur+1%2C7+%C2%B0C+dan+media+pendingin+air+biasa+dengan+temperatur%0D%0A28%2C2+%C2%B0C+memiliki+strukutur+mikro+martensit.%0D%0A%0D%0AKata+kuci+%3A+Heat+treatment%2C+Quenching%2C+Normalizing%2C+AISI+1045.&rft.publisher=FAKULTAS+TEKNIK&rft.date=2019&rft.type=Skripsi&rft.type=NonPeerReviewed&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F57238%2F1%2FABSTRAK.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F57238%2F2%2FSKRIPSI%2520FULL.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F57238%2F3%2FSKRIPSI%2520TANPA%2520BAB%2520PEMBAHASAN.pdf&rft.identifier=++Jeckson+Maniburi%2C+1215021081++(2019)+PENGARUH+MEIDA+PENDINGIN+QUENCHING+PADA+BAJA+KARBON+SEDANG+AISI+104+DENGAN+VARIASI+TEMPERATUR+DAN+NORMALIZING.++FAKULTAS+TEKNIK%2C+UNIVERSITAS+LAMPUNG.+++++&rft.relation=http%3A%2F%2Fdigilib.unila.ac.id%2F57238%2F