Pengaruh Variasi Komposisi (FeCNT)x terhadap Struktur Mikro, Nilai Kekerasan dan Konduktivitas Listrik Paduan (CuNi)-FeCNT

Abstract

This study aims to evaluate the effect of FeCNT composition variations on the mechanical properties and electrical conductivity of CuNi-FeCNT alloys produced using the powder metallurgy method. The FeCNT composition variations used were 3%, 5%, and 7% with pre-milling, as well as 7% without pre-milling. The production process involved mixing, compaction at a pressure of 250 MPa, and sintering at 770°C for one hour. The testing included density analysis, hardness testing, electrical conductivity measurement, microstructural observation, and crystallographic characterization using XRD. The results showed that increasing the FeCNT composition contributed to improved hardness and electrical conductivity of the alloy, with the pre-milling method playing a significant role in achieving a uniform CNT distribution. These findings highlight the potential application of CuNi-FeCNT alloy as electrodes for Electrical Discharge Machining (EDM) machines, offering enhanced mechanical and electrical properties.