Effect of Dy, Ho, and Er substitution on the magnetocaloric properties of Gd-Co-Al-Y high entropy bulk metallic glasses

Designing High Entropy Bulk Metallic Glass (HE-BMG) by Similar Element Substitution/Addition

“…Previously, BMGs and HEAs were developed separately in most cases, following different composition design and fabrication routes. While recent studies show that intersections exist between these two domains, namely some HEAs with meticulously designed composition could be made into BMGs, and hence the high entropy bulk metallic glasses (HE-BMGs) were developed [ 19 , 20 , 21 , 22 , 23 , 24 , 25 , 26 , 27 , 28 , 29 , 30 , 31 , 32 , 33 , 34 , 35 , 36 , 37 , 38 , 39 , 40 , 41 ]. An investigation into HE-BMGs is beneficial for understanding the phase formation rules of HEAs and fundamental issues of BMGs, so it is very important to develop more HE-BMGs.…”

Effect of Ho Addition on the Glass-Forming Ability and Crystallization Behaviors of Zr54Cu29Al10Ni7 Bulk Metallic Glass

“…Microalloying is widely used to improve the properties of alloys, especially those of metallic glasses [ 19 , 20 , 21 , 22 , 23 , 24 , 25 ]. Due to special chemical properties, rare earth elements are usually used as beneficial alloys additives to obtain better performance and are called “industrial monosodium glutamate” [ 26 , 27 , 28 , 29 ]. In our previous work, 1 at.% addition of rare earth Y was found to improve the GFA of Zr-based BMGs effectively and change the first crystallization phase of Zr 53.8 Cu 29.1 Ni 7.3 Al 9.8 BMG from Cu 10 Zr 7 to CuZr 2 , which is beneficial to controlling the crystallization process and preparing bulk nanocrystalline alloys [ 30 ].…”

“…In our previous work, 1 at.% addition of rare earth Y was found to improve the GFA of Zr-based BMGs effectively and change the first crystallization phase of Zr 53.8 Cu 29.1 Ni 7.3 Al 9.8 BMG from Cu 10 Zr 7 to CuZr 2 , which is beneficial to controlling the crystallization process and preparing bulk nanocrystalline alloys [ 30 ]. Microalloying of rare earth holmium (Ho) element was investigated to show beneficial effects on the GFA of Fe-based and Zr-based metallic glasses [ 26 , 27 , 28 , 29 , 31 , 32 ]. However, the addition of Ho in the literature is minimal and displayed limited understanding of microalloying effects of Ho [ 26 , 27 , 28 , 29 , 32 ].…”

“…Microalloying of rare earth holmium (Ho) element was investigated to show beneficial effects on the GFA of Fe-based and Zr-based metallic glasses [ 26 , 27 , 28 , 29 , 31 , 32 ]. However, the addition of Ho in the literature is minimal and displayed limited understanding of microalloying effects of Ho [ 26 , 27 , 28 , 29 , 32 ]. In addition, the influence of Ho addition on the crystallization of metallic glasses has not been studied yet.…”