?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rft.title=FENOMENA+OKSIDASI+BAJA+Cr-Mn-Ni+%0D%0ADALAM+LINGKUNGAN+UAP+AIR+PADA+TEMPERATUR+750+%C2%B0C%0D%0A&rft.creator=DIAN+PURNAMA%2C+1015021003&rft.subject=Mesin+(General).+Mesin+Sipil+(General)&rft.description=ABSTRACT%0D%0A%0D%0ATHE+Cr-Mn-Ni+STEEL+IS+A+KIND+OF+MEDIUM+CARBON+STEEL+(0%2C419+WT.%25+C)+AND+A+TYPE+OF+MEDIUM+ALLOY+WITH+OTHER+COMPOSITIONS+WHICH+ARE%3A+Mn+%3D+1%2C35%2C+Cr+%3D+2.07%2C+Ni++%3D+1%2C05%2C+AND+Mo+%3D+0%2C199+(WT.%25).+WITH+A+COMPOSITIONS+OF+Cr+%EF%81%BE+2.07+WT.%25+AND+Mo+%EF%81%BE+0.199+WT.%25%2C+ALLOWWING+THIS+STEEL+TO+BE+USED+AS+A+MAIN+SUBSTANCE+IN+BOILER+COMPONENTS%2C+A+HEAT+EXCHANGER.%0D%0ATHE+PURPOSE+OF+THIS+STUDY+IS+TO+FIND+OUT+THE+STEEL+OXIDATION+KINETHICS+THROUGH+AN+ADDITIONAL+WEIGHTS+OF+STEEL+THAT+WAS+OXIDIZED+AT+A+TEMPERATURE+OF+750+%C2%B0C+IN+A+WATER+VAPOR+ENVIRONMENT%2C+AND+TO+FIND+OUT+THE+OXIDE+PHASE+WHICH+IS+FORMED+ON+THE+SURFACE+OF+THE+CR-MN-NI+STEEL+AFTER+BEING+OXIDIZED.+BEFORE+THE+TEST+OF+OXIDATION%2C+THE+Cr-Mn-Ni+STEEL+WAS+FORMED+ACCORDING+TO+G54+STANDARDS%2C+WHICH+IS+A+STANDARD+OF+HIGH+TEMPERATURE+OXIDATION+TESTING+AND+THEN+IT+WILL+BE+SMOOTHED+AND+CLEANED+OF+RESIDUAL+IMPURITIES.+NEXT+THE+WEIGHT+AND+THE+SURFACE+AREA+OF+CLEANED+STEEL+WILL+BE+MEASURED+BEFORE+BEING+OXIDIZED.+THE+Cr-Mn-Ni+STEEL+THAT+HAVE+BEEN+OXIDIZED+FOR+1-20+HOURS%2C+THEN+THE+WEIGHT+OF+IT+WILL+BE+REMEASURED.+AFTER+THE+OXIDATION+TESTING+IS+DONE%2C+NEXT+IS+MEASURING+THE+OXIDATION+KINETHICS+AND+THE+CHARACTERISTICS+OF+THE+OXIDIZED+STEEL+BY+THE+TEST+OF+SEM+(SCANNING+ELECTRON+MICROSCOPY)%2C+OM+(OPTICAL+MICROSCOPY)%2C+AND+XRD+(X-RAY+DIFFRACTION).%0D%0ATHE+RESULT+OF+THIS+STUDY+REPRESENTS+THAT+THE+OXIDATION+KINETHICS+OF+THE+Cr-Mn-Ni+STEEL+IN+A+WATER+VAPOR+ENVIRONMENT+IS+FIVE+TIMES+LARGER+THAN+A+STEEL+OXIDATION+IN+DRY+AIR+ENVIRONMENT+AND+THE+OXIDE+PHASE+WHICH+IS+FORMED+ON+THE+SURFACE+AFTER+BEING+OXIDIZED+FOR+1-20+HOURS+IN+A+WATER+ENVIRONMENT+AT+A+TEMPERATURE+OF++750+%C2%B0C+ARE+Fe2O3%2C+Fe3O4%2C+FeO%2C+Cr2O3%2C+FeMnO3+(SPINEL).%0D%0A%0D%0AKEYWORDS%3A+Cr-Mn-Ni+STEEL%2C+HIGH+TEMPERATURE+WATER+VAPOR+OXIDATION%2C+PARABOLIC+CONSTANT+(KP)%2C+WEIGHT+GAIN.%0D%0A%0D%0AABSTRAK%0D%0A%0D%0ABaja+Cr-Mn-Ni+merupakan+jenis+baja+karbon+sedang+(0%2C419+wt.%25+C)+dan+jenis+paduan+sedang+dengan+komposisi+paduan+lainnya+yaitu%3A+Mn+%3D+1%2C35%2C+Cr+%3D+2.07%2C+Ni++%3D+1%2C05%2C+dan+Mo+%3D+0%2C199+(wt.%25).+Dengan+komposisi+Cr+%EF%81%BE+2.07+wt.%25+dan+Mo+%EF%81%BE+0.199+wt.%25+memungkinkan+baja+ini+dapat+digunakan+sebagai+bahan+utama+dalam+komponen+boiler%2C+alat+penukar+panas.%0D%0ATujuan+dari+penelitian+ini+adalah+untuk+mengetahui+kinetika+oksidasi+baja+melalui+pertambahan+berat+baja+yang+dioksidasi+pada+temperatur+750+%C2%B0C+dilingkungan+uap+air%2C+serta+mengetahui+fasa+oksida+yang+terbentuk+dipermukaan+baja+Cr-Mn-Ni+setelah+oksidasi.+Standar+pengujian+oksidasi+Cr-Mn-Ni+menggunakan+standar+G54.+Kemudian+baja+dihaluskan+dan+dibersihkan+dari+sisa+kotoran.+Selanjutnya+baja+yang+telah+dibersihkan+akan+dihitung+berat+dan+luas+permukaan+baja+sebelum+dioksidasi.+Baja+Cr-Mn-Ni+yang+telah+dioksidasi+selama+1-20+jam+kemudian+dihitung+kembali+beratnya.+Setelah+pengujian+oksidasi+selesai+selanjutnya+menghitung+kinetika+oksidasi+dan+karaterisasi+baja+yang+teroksidasi+dengan+pengujian+SEM+(Scanning+Electron+Microscopy)%2C+OM+(Optical+Microscopy)%2C+XRD+(X-Ray+Diffraction).%0D%0ADari+hasil+penelitian+menunjukkan+bahwa+kinetika+oksidasi+baja+Cr-Mn-Ni+dilingkungan+uap+air+lebih+besar+lima+kali+lipat+dibanding+oksidasi+baja+dilingkungan+udara+kering+dan+fasa+oksida+yang+terbentuk+dipermukaan+setelah+dioksidasi+selama+1-+20+jam+dilingkungan+uap+air+pada+temperatur+750+%C2%B0C+antara+lain+Fe2O3%2C+Fe3O4%2C+FeO%2C+Cr2O3%2C+FeMnO3+(spinel).%0D%0A%0D%0AKata+kunci%3A+Baja+Cr-Mn-Ni%2C+Oksidasi+uap+air+pada+temperatur+tinggi%2C+Konstanta+parabolik+(Kp)%2C+Penambahan+berat.%0D%0A&rft.publisher=FAKULTAS+TEKNIK+&rft.date=2017-10-12&rft.type=Skripsi&rft.type=NonPeerReviewed&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F29118%2F1%2FABSTRACT%2520%2528ABSTRAK%2529.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F29118%2F16%2FSKRIPSI%2520FULL.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F29118%2F17%2FSKRIPSI%2520TANPA%2520BAB%2520PEMBAHASAN.pdf&rft.identifier=++DIAN+PURNAMA%2C+1015021003++(2017)+FENOMENA+OKSIDASI+BAJA+Cr-Mn-Ni+DALAM+LINGKUNGAN+UAP+AIR+PADA+TEMPERATUR+750+%C2%B0C.++FAKULTAS+TEKNIK+%2C+UNIVERSITAS+LAMPUNG.+++++&rft.relation=http%3A%2F%2Fdigilib.unila.ac.id%2F29118%2F