The effects of Fe additions on the liquid phase sintering of W–bronze composites

In this investigation, experiments were conducted to evaluate the effects of Fe additives in the range of 1–5 wt.% on the densification of different compositions of W–pre-alloy bronze compacts sintered isothermally at temperatures ranging from 900 °C to 965 °C for 2.30 h. The results showed that substantial improvement in hardness by a factor of two folds and density by 10% was achieved for the W–pre-alloy bronze sintered compacts by the addition of 2–3 wt.% Fe as an activator.