Microstructure and hardness of undercooled Ni78.6Si21.4 eutectic alloy

Microstructural, mechanical, electrical and thermal characterization of arc-melted Ni–Si and Co–Si alloys

“…These relationships are in good agreement with the relationships obtained in previous works [19][20][21][22] …”

“…The value of HV (592.9 kg/mm 2 ) is very close to data (590 kg/mm 2 ) obtained by Yiping et. al [19] for Ni-Si eutectic alloy (Ni-21.4 at.% Si). The correlations between microhardness and composition obtained in this study are in a good agreement with the results obtained by some researchers [20][21][22] for different alloys.…”

Microstructure evolution and mechanical properties of intermetallic Ni–xSi (x=5, 10, 15, 20) alloys

“…These values demonstrate that an increase in Si content was accompanied by an increase in microhardness. These values are in good agreement with those reported by Sheng et al [4], Yiping et al [26] and Davis [27]. The Vickers microhardness values of the Ni-Si alloys also increase with increasing Si and this situation may be attributed to the dispersion hardening of the intermetallic compounds (␤ 1 -Ni 3 Si and ␦-Ni 2 Si), which were formed, and increased in proportion by increasing Si concentration.…”

Research on Microstructure and Properties of Co-Si Alloys by Vacuum Suction Casting

“…Metastable Co 3 Si phase was found in Co-10wt%Si alloys by adopting a fluxing purification and cyclic superheating technique in our previous research [8]. In addition, many researches have been carried out which focus on the solidification process and microstructure evolution of undercooled Ni-Si [9][10][11] and Co-Sn [12] eutectic alloys.…”