Abstract

Using the vacuum hot press sintering method, tungsten heavy alloys (93 W − 4.9Ni − 2.1Cu) was produced. The study explored the effect of sintering temperature on W-Ni-Cu heavy alloy. Studies in metallography reveals that an increase in sintering temperature led to the coalescence of tungsten grains and affected their mechanical, electrical properties. As a result, an alloy sintered at a high temperature (1450 °C) has the highest hardness (410 Hv0.5), electrical conductivity (19.72% of IACS), and relative density (96.6%).

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