PENGARUH PROSES ROLLING TERHADAP STRUKTUR MIKRO DAN SIFAT MEKANIS PADA KUNINGAN SETELAH DI PROSES ECAP
Abstract: Brass material
widely used in industry because it has the advantage of being a metal that resists
corrosion, has high ductility, good toughness and easy on the form. This study
was conducted todetermine the effect of rolling process on mechanical
properties and microstructure of metal brass afterECAP process on brass (CuZn)
70/30. The initial step is to make the specimens with a diameter of 10 mmand
height 80 mm has been done annealing 600 ° C with a hold time of 90 minutes.
Then a ECAP 3-passprocess and cold rolling process. To determine the mechanical
properties of tensile test specimens and hardness test) and metallographic
observations to determine the microstructure. The results after theexecution of
the research note that the specimen after passing through annealing process,
ECAP androlling have a higher hardness. Prior to treatment the specimen
hardness value is 78 VHN and aftertreatment to 252 VHN hardness value.
Metallographic observations of known properties of brass increasingly refined
microstructure and grain boundary between micro become increasingly tight.
Penulis: Julyadi, Suryadi,
Erwin Siahaan dan Eddy S. Siradj
Kode Jurnal: jptmesindd140596
