%0 Journal Article
%A ., Chun‑Liang Chen
%A ., · Sutrisna
%D 2022
%F ITNYREPOID:5098
%I Springer
%J Metals and Materials International
%K High entropy alloy · Tungsten alloy · Mechanical alloying · Sintering behavior
%T Role of Cu‑Containing MEA Binder and Sintering Temperatures  on Synthesis and Characteristics of Tungsten‑Based Alloys
%U https://repository.itny.ac.id/id/eprint/5098/
%X Tungsten-based alloys doped with the 10 wt% FeCoNiCu medium entropy alloy (MEA) binder were fabricated by mechanical alloying. The role of the Cu-containing MEA binder and sintering temperatures (1250–1450℃) on the synthesis, sintering behavior, and mechanical properties of the model tungsten alloys were investigated. The results demonstrate that the  solid-to-liquid phase transition during sintering was strongly infuenced by the presence of Cu in the binder and sintering  temperatures. A good combination of high compressive strength (2080 MPa), failure strain (42%), and hardness (419 HV)  was achieved at the low sintering temperature (1250 ℃), which promoted a fned grain structure with semisolid state sintering. However, Fe-rich oxide layers were formed along the grain boundaries at the high sintering temperature (1450 ℃)  and caused a poor bonding strength between the binder phase and W matrix, thereby resulting in signifcant degradation of  mechanical properties