?url_ver=Z39.88-2004&rft_id=1815021024&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rft.title=EFEK+TERMAL+HARDENING+DENGAN+PERLAKUAN+PANAS+SIKLIK+TERHADAP+STRUKTUR+MIKRO+DAN+SIFAT+MEKANIS+BAJA+TAHAN+KARAT+316&rft.creator=KMS.+IMAM+PRAWIJAYA%2C+1815021024&rft.subject=620+Ilmu+teknik+dan+ilmu+yang+berkaitan&rft.description=ABSTRAK+%0D%0A%0D%0AEFEK+TERMAL+HARDENING+DENGAN+PERLAKUAN+PANAS+SIKLIK+TERHADAP+STRUKTUR+MIKRO+DAN+SIFAT+MEKANIS+BAJA+TAHAN+KARAT+316%0D%0A%0D%0AOleh%0D%0A%0D%0AKms.+Imam+Prawijaya%0D%0A%09%0D%0ABaja+tahan+karat+tipe+316+memiliki+nilai+kekerasan+yang+rendah+sehingga+pengaplikasiannya+sangat+dibatasi.+Berdasarkan+penelitian+yang+telah+dilakukan+sebelumnya%2C+perlakuan+panas+siklus+banyak+memiliki+dampak+positif+terhadap+sifat+mekanis+dari+material+uji.+Perlakuan+panas+siklus+membuat+struktur+butir+menjadi+semakin+halus%2C+meningkatkan+nilai+ketangguhan+dan+kekerasan.%0D%0AMetode+perlakuan+panas+siklus+adalah+sebagai+berikut%3A+pertama%2C+untuk+menentukan+optimal+siklus+dilakukan+pengujian+siklus+pada+temperature+950%E2%84%83+dan+waktu+tahan+3%2C3+menit+dengan+jumlah+3%2C5+dan+7+kali+siklus+dan+diquenching+pada+media+air.+Setelah+dilakukan+pengujian+siklus+optimal+dilakukan+perlakuan+panas+siklus+pada+siklus+optimal+dengan+waktu+tahan+40+menit+dan+pada+tiga+variasi+temperatur+yaitu+550%2C+750+dan+950%E2%84%83+dengan+metode+carburizing+dan+diquenching+pada+media+es.+Untuk+melihat+pengaruh+pada+sifat+mekanis+dilakukan+pengujian+kekerasan+microhardness+Vickers%2C+untuk+karakterisasi+dalam+menentukan+sifat+kimia+dan+fisik+dilakukan+uji+XRF%2C+XRD%2C+SEM-EDS+dan+mikroskop+optik.%0D%0ABerdasarkan+pengujian+kekerasan%2C+nilai+kekerasan+menurun+seiring+dengan+peningkatan+temperatur.+Pada+pengujian+XRF%2C+komposisi+unsur+krom+16%25+yang+berarti+bahwa+sampel+merupakan+baja+tahan+karat+316%2C+Berdasarkan+pengujian+SEM-EDS+dan+mikroskop+optik+didapati+terbentuk+lapisan+pada+material+yang+diberikan+perlakuan+carburizing%2C+ketebalan+lapisan+yang+terbentuk+meningkat+seiring+peningkatan+temperatur+dan+intensitas+karbon+tertinggi+pada+bagian+permukaan+sampel.+Pada+pengujian+XRD+sampel+yang+diberikan+perlakuan+pada+temperatur+750+dan+950%E2%84%83+terbentuk+fasa+kromium+oksida+(Cr2O3)+dan+besi+oksida+(Fe3O4)+sedangkan+pada+sampel+550%E2%84%83+didominasi+oleh+fasa+ferit+dan+ferit+nikel+tetragonal.%0D%0A%0D%0AKata+Kunci%3A+Baja+tahan+karat+tipe+316%2C+perlakuan+panas+siklus%2C+carburizing+%0D%0AABSTRAK+%0D%0A%0D%0ATHERMAL+EFFECTS+OF+HARDENING+WITH+CYCLIC+HEAT+TREATMENT+ON+MICRO+STRUCTURE+AND+MECHANICAL+PROPERTIES+OF+STEEL+316%0D%0A%0D%0ABy%0D%0A%0D%0AKms.+Imam+Prawijaya%0D%0A%0D%0A%0D%0A%0D%0A%0D%0AType+316+stainless+steel+has+a+low+hardness+value+so+its+application+is+very+limited.+Based+on+previously+conducted+studies%2C+cycle+heat+treatment+has+a+lot+of+positive+impact+on+the+mechanical+properties+of+the+test+material.+Cyclical+heat+treatment+makes+the+grain+structure+even+more+refined%2C+increasing+the+value+of+toughness+and+hardness.%0D%0A%09The+method+of+heat+treatment+of+the+cycle+is+as+follows%3A+first%2C+to+determine+the+optimal+cycle%2C+cycle+testing+is+carried+out+at+a+temperature+of+950+%C2%B0+C+and+a+resistance+time+of+3.3+minutes+with+an+amount+of+3.5+and+7+cycles+and+quenching+on+water+media.+After+testing+the+optimal+cycle%2C+cycle+heat+treatment+was+carried+out+in+the+optimal+cycle+with+a+lasting+time+of+40+minutes+and+at+three+temperature+variations+of+550%2C+750+and+950+%C2%B0+C+by+the+method+of+carburizing+and+quenching+on+ice+media.+To+see+the+influence+on+mechanical+properties%2C+Vickers+microhardness+hardness+testing+was+carried+out%2C+for+characterization+in+determining+chemical+and+physical+properties%2C+XRF%2C+XRD%2C+SEM-EDS+and+optical+microscope+tests+were+carried+out.%0D%0ABased+on+hardness+testing%2C+the+hardness+value+decreases+as+the+temperature+increases.+In+the+XRF+test%2C+the+elemental+composition+of+chrome+was+16%25+which+means+that+the+sample+was+stainless+steel+316%2C+Based+on+SEM-EDS+testing+and+optical+microscopy%2C+it+was+found+that+a+layer+was+formed+on+the+material+given+the+carburizing+treatment%2C+the+thickness+of+the+formed+layer+increases+as+the+temperature+and+intensity+of+the+highest+carbon+increase+on+the+surface+of+the+sample.+In+XRD+testing%2C+samples+treated+at+temperatures+750+and+950+%C2%B0C+formed+phases+of+chromium+oxide+(Cr2O3)+and+iron+oxide+(Fe3O4)+while+in+samples+550+%C2%B0C+were+dominated+by+ferrite+phase+and+tetragonal+nickel+ferrite.%0D%0A%0D%0AKeywords%3A+Type+316+stainless+steel%2C+cycle+heat+treatment%2C+carburizing+%0D%0A&rft.publisher=FAKULTAS+TEKNIK&rft.date=2022-08-03&rft.type=Skripsi&rft.type=NonPeerReviewed&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F65407%2F1%2FABSTRAK.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F65407%2F2%2FSKRIPSI%2520FULL.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F65407%2F3%2FSKRIPSI%2520TANPA%2520BAB%2520PEMBAHASAN.pdf&rft.identifier=++KMS.+IMAM+PRAWIJAYA%2C+1815021024++(2022)+EFEK+TERMAL+HARDENING+DENGAN+PERLAKUAN+PANAS+SIKLIK+TERHADAP+STRUKTUR+MIKRO+DAN+SIFAT+MEKANIS+BAJA+TAHAN+KARAT+316.++FAKULTAS+TEKNIK%2C+UNIVERSITAS+LAMPUNG.+++++&rft.relation=http%3A%2F%2Fdigilib.unila.ac.id%2F65407%2F