ANALISA MEDIA PENDINGIN KAPUR PADA PROSES TEMPERING TERHADAP SIFAT FISIS PADA POROS S 45 C
Abstract: This research aim to
analyse process tempering with lime coolant to property fisis covering assaying
of chemical composition and assaying of microstructure at Axis
S45C. Process quenching at temperature 870°C with detention of 30
minutes and tempering is done with temperature 300°C with detention of 60
minutes . Assaying applied in this
research is descriptive assaying (Assaying destroys) what applies feedstock for
specimen is Axis Steel S45C. Composition test result shows basis material
( Raw Material) included in faction of medium carbon steel or middle carbon
steel with carbon content 0,47%. After getting treatment of Quenching with
cooling applies water and Tempering with cooling applies lime then is tested
its(the chemical composition and microstructure
happened transformation at chemical composition content and prensentase
its(the microstructure. As for result of
assaying after getting treatment process of tempering happened transformation
of chemical composition that is improvement at Mn (Manganese) out of 06308 %
becomes 063131 %, Si ( Silicon) out of 023283 % becomes 023806 %, Al (
Aluminum) out of 000992 % becomes 001276 %, Cu (Copper) out of 00077 % becomes
000859 % and V ( Vanadium) out of 000012 % becomes 000022 %. For its(the microstructure with content pearlite
equal to 95% and ferrite equal to 5% but having strain between sewer
structureses is more breadth.
Application from result of this research that axis steel S45C is getting
treatment of Tempering with pedingin lime can be applied as axis because
memilki strength and hardness but remain to slack is not brittle.
Penulis: Lagiyono, Siswiyanti,
Waryono
Kode Jurnal: jptmesindd110242
