?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rft.title=PENGARUH+VARIASI+WAKTU+PACK+CARBURIZING+ARANG%0D%0ATEMPURUNG+KELAPA+PADA+BAJA+ST37+DENGAN+KATALIS%0D%0A%0D%0ACANGKANG+KERANG+HIJAU&rft.creator=TOMMY+RIZKY+PUTRA+PERDANA%2C+1515021051&rft.subject=620+Ilmu+teknik+dan+ilmu+yang+berkaitan&rft.description=Penelitian+ini+bertujuan+untuk+mengetahui+pengaruh+arang+tempurung+kelapa%0D%0Adalam+proses+carburizing+baja+karbon+ST37+terhadap+kekerasan%2C+komposisi+kimia%0D%0Adan+struktur+mikronya.+Temperatur+yang+digunakan+dalam+proses+karburasi%0D%0Aberlangsung+adalah+850oC+dengan+waktu+tahan+60%2C+120+dan+180+menit.+Baja%0D%0Akarbon+ST37+yang+mengandung+kadar+C+%3D+0%2C0372+%25%2C+Si+%3D+0%2C40+%25%2C+Mn+%3D+0%2C105+%25%2C%0D%0AP+%3D+0%2C0378+%25%2C+S+%3D+0%2C028+%25+dan+Fe+%3D+93%2C8+%25.+Hasil+pengujian+kekerasan+micro%0D%0Avickers+dengan+nilai+tertinggi+sebesar+218%2C49+HV+pada+waktu+penahanan+60+menit%0D%0Amenggunakan+arang+kayu+jati+dan+sengon+sebesar+224+HV.+Hasil+analisis+uji%0D%0Akomposisi+kimia+pada+arang+tempurung+kelapa+pada+waktu+penahanan+60+menit%0D%0A0%2C241+%25%2C+120+menit+0%2C375+%25%2C+dan+180+menit+0%2C323+%25%2C+data+ini+menunjukkan%0D%0Abahwa+nilai+kekerasan+spesimen+pengaruh+arang+tempurung+kelapa+lebih+tinggi%0D%0Apada+proses+carburizing+di+waktu+penahanan+120+menit+sehingga+jumlah+karbon%0D%0Amampu+berdifusi+dipermukaan+baja+karbon+tersebut.%0D%0A%0D%0AKata+kunci%3A+kekerasan%2C+komposisi+kimia%2C+arang+tempurung+kelapa%2C+baja+karbon%0D%0A%0D%0AST37+dan+karburasi.%0D%0AThis+research+is+aimed+to+know+the+influence+of+coconut+shell+charcoal+in+the+low%0D%0Acarburizing+process+of+ST37+towards+the+endurance+and+to+know+the+effect+of%0D%0Acarburizing+process+on+the+chemical+composition+and+microstructure+of+low%0D%0Acarbon+steel+ST37.+The+temperature+used+in+the+carburizing+procces+id+850oC+with%0D%0Aholding+time+of+60+%2C+120%2C+and+180+minutes.+Low+carbon+steel+ST37+which+contains%0D%0Aof+C+%3D+0.0372%25%2C+Si+%3D+0.40%25%2C+Mn+%3D+0.105%25%2C+P+%3D+0.0378%25%2C+S+%3D+0.028%25+and+Fe+%3D%0D%0A93.8%25.+The+results+of+micro+vickers+hardness+test+with+the+highest+value+of+218%2C49%0D%0AHV+at+60+minutes+of+holding+time+using+coconut+shell+charcoal+of+218%2C49+HV.+The%0D%0Aanalysis+of+the+chemical+composition+of+coconut+shell+charcoal+0.241%25+at+60%0D%0Aminutes+of+holding+time%2C120+minutes+is+0%2C375%25%2C+and+180+is+0%2C323%25.+this+data%0D%0Ashows+that+the+hardness+value+of+specimens+influences+coconut+shell+charcoal+is%0D%0Ahigher+in+the+carburizing+process+at+120+minutes+holding+time%2C+so+that+the+amount%0D%0Aof+carbon+is+able+to+diffuse+on+the+surface+of+carbon+steel.%0D%0A%0D%0AKey+words%3A+hardness%2C+chemical+compositon+coconut+shell+charcoal%2C+low+carbon%0D%0Asteel+ST37+and+carburizing&rft.publisher=FAKULTAS+TEKNIK&rft.date=2021&rft.type=Skripsi&rft.type=NonPeerReviewed&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F62092%2F1%2F1.%2520ABSTRAK%2520-%2520ABSTRACT%2520-%2520Rocket%2520Digital%2520%252820%2529.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F62092%2F2%2F2.%2520SKRIPSI%2520FULL%2520-%2520Rocket%2520Digital%2520%252855%2529.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F62092%2F3%2F3.%2520SKRIPSI%2520TANPA%2520BAB%2520PEMBAHASAN%2520-%2520Rocket%2520Digital%2520%252855%2529.pdf&rft.identifier=++TOMMY+RIZKY+PUTRA+PERDANA%2C+1515021051++(2021)+PENGARUH+VARIASI+WAKTU+PACK+CARBURIZING+ARANG+TEMPURUNG+KELAPA+PADA+BAJA+ST37+DENGAN+KATALIS+CANGKANG+KERANG+HIJAU.++FAKULTAS+TEKNIK%2C+UNIVERSITAS+LAMPUNG.+++++&rft.relation=http%3A%2F%2Fdigilib.unila.ac.id%2F62092%2F