Tugas Akhir Mesin
PENGARUH WAKTU TAHAN PACK CARBURIZING DAN PENGGUNAAN MEDIA QUENCHING CANE MOLASSES TERHADAP SIFAT MEKANIK DAN STRUKTUR MIKRO BAJA KARBON RENDAH
Pack carburizing is one of the methods used to increase
the carbon content in steel by using solid media. In this
study, the addition of carbon elements was carried out
using teak wood charcoal and cow bone powder, after
that in quenching using cane molasses. Variations used
for holding time are 2 hours, 4 hours, and 6 hours,
variations in cane molasses content used 10%, 20%,
30%, and the percentage comparison between cow bone
powder and teak wood charcoal is 50%:50%. The results
of this study show that the pack carburizing resistance
time factor is more influential on the mechanical
properties and microstructure of low carbon steel. The
highest hardness value is found at a holding time of 6
hours with quenching cane molasses 20% of 799,952
kg/cm2 and the lowest hardness value is found without
treatment of 162,621 kg/cm2
. For the highest impact
toughness is found without treatment of 2,022464863
joule/mm2
and the lowest impact toughness value is
found at holding time of 6 hours with quenching cane
molasses 20% of 1,126637254 joule/mm2
. For
microstructures formed after treatment, martensite
structures are formed due to rapid cooling.
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