?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rft.title=ANALISIS+PENGARUH+KONSENTRASI+LARUTAN+AIR+GARAM+(NaCl)%0D%0APADA+SAAT+PROSES+QUENCHING+TERHADAP+STRUKTUR+MIKRO%0D%0ADAN+KEKERASAN+BAJA+KARBON+ST+37+(+C+%3D+0%2C+303+%25)&rft.creator=Agus+Supriadi%2C+1517041107&rft.subject=500+ilmu+pengetahuan+alam+dan+matematika&rft.subject=530+Fisika&rft.description=Telah+dilakukan+penelitian+terkait+analisis+pengaruh+konsentrasi+larutan+air+garam%0D%0A(NaCl)+pada+saat+proses+quenching+terhadap+kekerasan+dan+struktur+mikro+pada+baja%0D%0Akarbon+ST+37+(C+%3D+0%2C303+%25).+Penelitian+ini+dilakukan+dengan+metode+hardening%0D%0Adengan+pemanasan+awal+Pre-heating+pada+suhu+600+oC+selama+30+menit+dan%0D%0Aaustenisasi+pada+suhu+850+oC+selama+25+menit.+Selanjutnya+sampel+di+quenching+pada%0D%0Amedia+larutan+garam+0%25%2C+5%25%2C+10%25%2C+dan+15%25.+Dengan+pengujian+menggunakan%0D%0Ametode+Spark-OES+diketahui+bahawa+sampel+memiliki+konsentrasi+unsure+karbon%0D%0Asebesar+0%2C303%25.+Pada+penelitian+yang+dilakukan+diketahuikon+sentrasi+larutan+garam%0D%0Aberpengaruh+71%2C73%25+terhadap+kekerasan+dan+45%2C03%25+terhadap+ketangguhan+baja%0D%0Akarbon+menengah.+Selain+itu+proses+hardening+yang+diakukan+mengakibatkan%0D%0Atransformasi+fasa+dari+ferrit+(%CE%B1)+dan+perlit+menjadi+martensit.%0D%0A%0D%0AKata+kunci%3A+Hardening%2C+pre-heating%2C+quenching%2C+ferrit%2C+martensit%0D%0AResearch+has+been+carried+out+related+to+the+analysis+of+the+effect+of+the+concentration%0D%0Asalt+solution+(NaCl)+during+the+quenching+on+hardness+and+microstructure+of+ST+37+(C%0D%0A%3D+0%2C+303+%25)+carbon+steel.+This+research+was+conducted+by+using+the+hardening+method%0D%0Awith+pre-heating+at+600+oC+for+30+minutes+and+austenizing+at+850oC+for+25+minutes.%0D%0AFurthermore%2C+the+samples+were+quenched+in+salt+solution+media+of+0%25%2C+5%25%2C+10%25%2C+and%0D%0A15%25.+By+testing+using+the+Spark-OES+method%2C+it+is+known+that+the+sample+has+a%0D%0Acarbon+element+concentration+of+0.303%25.+In+the+research%2C+it+was+found+that+the%0D%0Aconcentration+of+salt+solution+had+an+effect+of+71.73%25+to+the+hardness+and+45%2C03%25+to%0D%0Athe+toughness+of+medium+carbon+steel.+In+addition%2C+the+hardening+process+resultes+in+a%0D%0Aphase+transformation+from+ferrite+(%CE%B1)+and+pearlite+to+martensite.%0D%0A%0D%0AKeyword%3A+Hardening%2C+pre-heating%2C+quenching%2C+ferrit%2C+martensite&rft.publisher=FAKULTAS+MATEMATIKA+ILMU+PENGETAHUAN+ALAM&rft.date=2021&rft.type=Skripsi&rft.type=NonPeerReviewed&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F60098%2F1%2FABSTRAK%2520-%2520Agus%2520Supriadi.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F60098%2F2%2FSKRIPSI%2520FULL%2520-%2520Agus%2520Supriadi.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F60098%2F3%2FSKRIPSI%2520TANPA%2520BAB%2520PEMBAHASAN%2520-%2520Agus%2520Supriadi%2520%25281%2529.pdf&rft.identifier=++Agus+Supriadi%2C+1517041107++(2021)+ANALISIS+PENGARUH+KONSENTRASI+LARUTAN+AIR+GARAM+(NaCl)+PADA+SAAT+PROSES+QUENCHING+TERHADAP+STRUKTUR+MIKRO+DAN+KEKERASAN+BAJA+KARBON+ST+37+(+C+%3D+0%2C+303+%25).++FAKULTAS+MATEMATIKA+ILMU+PENGETAHUAN+ALAM%2C+UNIVERSITAS+LAMPUNG.+++++&rft.relation=http%3A%2F%2Fdigilib.unila.ac.id%2F60098%2F