?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rft.title=PENGARUH+VARIASI+VANADIUM+DAN+PERLAKUAN+PANAS%0D%0ATERHADAP+SIFAT+FISIS+DAN+STRUKTUR+MIKRO+PADA+PRODUK%0D%0A%0D%0ANi-HARD+2&rft.creator=Fida+Ivana+Lisa%2C+1417041027&rft.subject=500+ilmu+pengetahuan+alam+dan+matematika&rft.subject=530+Fisika&rft.description=Material+Ni-Hard+2paduan+yang+digunakan+yaitu+material+yang+memiliki%0D%0Akomposisi+C%3B+2%2C9%25+Ni%3B+3%2C3-4%2C8+%25+dan+Cr%3B+1%2C5-2%2C6+%25.+Penelitian+ini+bertujuan%0D%0Auntuk+mengetahui+pengaruh+vanadium+pada+kondisi+as-cast+dan+as-quenched%0D%0A%0D%0Atehadap+sifat+kekerasan%2C+impak%2C+struktur+mikro%2C+dan+ketahanan+aus.+Material+Ni-%0D%0AHard+2+paduan+vanadium+dibuat+dengan+metode+peleburan+yang+dicetak%0D%0A%0D%0Amenggunakan+cetakan+pasir.+Material+Ni-Hard+2+paduan+vanadium+ini+dilakukan%0D%0Atiga+perlakuan+yaitu%2C+as-cast%2C+as-quenched%2C+dan+as-tempered.+Hasil+uji%0D%0Amenunjukkan+bahwa+pada+kondisi+as-cast+material+memiliki+struktur+fasa+berupa%0D%0Afasa+austenit%2C+karbida%2C+martensit%2C+dan+ferit.+Nilai+kekerasan+tertinggi+pada+kondisi%0D%0Aas-cast+dihasilkan+oleh+sampel+7%25+vanadium+yaitu+sebesar+43%2C6+HRC.+Kemudian%0D%0Anilai+impak+tertinggi+didapatkan+pada+sampel+3%25+vanadium+yaitu+sebesar+73%2C1%0D%0AJ%2Fcm2%0D%0A.+Sedangkan+pada+pengujian+keausan+didapat+nilai+abrasi+terendah%0D%0Adidapatkan+oleh+sampel+3%25+vanadium+yaitu+sebesar+0%2C50+x+10-6mm3%0D%0A%0D%0A%2Fmm.+Pada%0D%0Akondisi+as-quenched+material+memiliki+fasa+berupa+fasa+austenit%2C+karbida%0D%0Avanadium%2C+dan+martensit.+Nilai+kekerasan+tertinggi+pada+kondisi+as-quenched%0D%0Adihasilkan+oleh+sampel+7%25+vanadium+pada+suhu+850%C2%B0+C+yaitu+sebesar+55%0D%0AHRC.Pada+kondisi+as-tempered+material+memiliki+struktur+fasa+berupa+fasa%0D%0Aaustenit%2C+karbida+vanadium%2C+dan+martensit.+Nilai+kekerasan+tertinggi+pada+kondisi%0D%0Aas-tempered+dihasilkan+oleh+sampel+7%25+vanadium+pada+suhu+as-quenched850%C2%B0+C%0D%0Ayaitu+sebesar+55+HRC.+Kemudian+nilai+impak+tertinggi+didapatkan+pada+sampel%0D%0A3%25+vanadium+yaitu+sebesar+74%2C96+J%2Fcm2%0D%0A%0D%0A.+Sedangkan+pada+pengujian+keausan%0D%0Adidapat+nilai+abrasi+terendah+didapatkan+oleh+sampel+7%25+vanadium+yaitu+sebesar%0D%0A0%2C49+x+10-6+mm3%0D%0A%0D%0A%2Fmm.+Semakin+tinggi+kandungan+vanadium+maka+akan+semakin%0D%0Amemperkecil+ukuran+butir+sedangkan+semakin+tinggi+suhu+maka+struktur+butir%0D%0Aakan+semakin+kasar+dan+ukuran+karbida+akan+membesar.%0D%0AKata+Kunci+%3A+Ni-Hard+2%2C+vanadium%2C+struktur+mikro%2C+kekerasan%2C+impak%2C+keausan.%0D%0ANi-Hard+2+used+material+is+a+which+has+the+composition+C%3B+2.9%25+Ni%3B+3.3+to+4.8%25%0D%0Aand+Cr%3B+1.5+to+2.6%25.+This+study+is+aimed+to+determine+the+effect+of+vanadium+in%0D%0Athe+as-cast+condition+and+nature+of+the+Cosmos+as-quenched+hardness%2C+impact%2C%0D%0Amicrostructure%2C+and+wear+resistance.+Ni-Hard+2+Material+vanadium+alloys+is+made%0D%0Aby+smelting+method+and+it+is+printed+using+sand+molds.+Ni-Hard+2+Material%0D%0Avanadium+alloys+is+performed+by+three+treatments%2C+namely%2C+as-cast%2C+as-quenched%2C%0D%0Aand+as-tempered.+The+test+results+show+that+the+condition+of+as-cast+material+has+a%0D%0Aphase+structure+in+the+form+of+the+austenite+phase%2C+carbides%2C+martensite%2C+and+ferrite.%0D%0AThe+highest+hardness+value+on+the+condition+of+as-cast+generated+by+the+sample%0D%0A7%25+vanadium+in+the+amount+of+43.6+HRC.+Then+the+value+of+the+highest+impact+on%0D%0Athe+samples+obtained+3%25+vanadium+that+is+equal+to+73.1+J%2Fcm2%0D%0A%0D%0A.+While+the+wear%0D%0Atesting+obtained+the+lowest+abrasion+values+obtained+by+the+sample+3%25+vanadium%0D%0Athat+is+equal+to+0.50+x+10-6mm3%0D%0A%0D%0A%2Fmm.+On+the+condition+of+As-quenched+material%0D%0Ahas+a+phase+form+austenite+phase%2C+vanadium+carbide+and+martensite.+The+highest%0D%0Ahardness+value+on+the+conditions+produced+by+as-quenched+samples+of+7%25%0D%0Avanadium+at+850+%C2%B0C+is+equal+to+55+HRC.Pada+as-tempered+conditions+of+material%0D%0Ahas+a+phase+structure+in+the+form+of+the+austenite+phase%2C+vanadium+carbide+and%0D%0Amartensite.+The+highest+hardness+value+in+as-tempered+conditions+generated+by+the%0D%0Asample+7%25+vanadium+at+a+temperature+of+as-quenched850+%C2%B0C+is+equal+to+55+HRC.%0D%0AThen+the+value+of+the+highest+impact+on+the+samples+obtained+3%25+vanadium+in+the%0D%0Aamount+of+74.96+J%2Fcm2%0D%0A%0D%0A.+While+the+wear+testing+obtained+the+lowest+abrasion+values%0D%0A%0D%0Aobtained+by+the+sample+7%25+vanadium+that+is+equal+to+0.49+x+10-6+mm3%0D%0A%2F+mm.%0D%0AKeywords%3A+Ni-Hard+2%2C+vanadium%2C+microstructur%2C+hardness%2C+impact%2C+wear+resintent.&rft.publisher=FAKULTAS+MATEMATIKA+DAN+ILMU+PENGETAHUAN+ALAM&rft.date=2019&rft.type=Skripsi&rft.type=NonPeerReviewed&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F57459%2F1%2FABSTRAK-ABSTRACT.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F57459%2F2%2FSKRIPSI%2520FULL.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F57459%2F3%2FSKRIPSI%2520TANPA%2520BAB%2520PEMBAHASAN.pdf&rft.identifier=++Fida+Ivana+Lisa%2C+1417041027++(2019)+PENGARUH+VARIASI+VANADIUM+DAN+PERLAKUAN+PANAS+TERHADAP+SIFAT+FISIS+DAN+STRUKTUR+MIKRO+PADA+PRODUK+Ni-HARD+2.++FAKULTAS+MATEMATIKA+DAN+ILMU+PENGETAHUAN+ALAM%2C+UNIVERSITAS+LAMPUNG.+++++&rft.relation=http%3A%2F%2Fdigilib.unila.ac.id%2F57459%2F