Effect of Fe on Crystallization Process of Zr-Co-Al-(Fe) Bulk Metallic Glasses

Abstract

The change in the internal states of Zr56Co28Al16 bulk metallic glass (BMG) upon minor substitution of Co with Fe was investigated for alloys with different compositions of Zr56Co28-xAl16Fex (x = 0, 1 and 2, respectively). Results exhibited that the ductile Zr-Co-Al-Fe BMGs were obtained and showed better glass-forming ability (GFA) via a small amount of Co partial replacement by Fe. In addition, the addition of a small amount of Fe enhanced the crystallization process and reduced the activation energy. The micro-alloying with Fe reduced the heat of mixing, which made the rearrangement of atoms easier during the crystallization process.

Dynamics of Cu–Zr metallic glass devitrification under ultrafast laser excitation revealed by atomistic modeling

“…As reported in the literature, it concerns ternary alloys such as CuZrPd [47], AlNiCo [48], CuZrAl [49,50], and AlNiLa [51]. Several studies have achieved devitrification in multicomponent amorphous systems in supercooling condition, namely ZrCoAlFe [52], LaAlNiCu [53], Zr-TiNiCuBe [54,55], and ZrTiCuNiAl [56]. The authors support that the atomic element size and the stoichiometry of mixtures are fundamental ingredients to realize devitrification.…”

On the formation, mechanical properties and crystallization behaviors of a Zr56Co24Al20 bulk metallic glass

“…Furthermore, minor addition of Ag or Fe can significantly improve the GFA of Zr-Co-Al system. [25][26][27] Moreover, it was reported that increasing Ni/Fe concentration ratio can effectively improve the compressive plasticity in Fe-Ni-Nb-B bulk glassy alloys [28]. The Al content can affect the formation and the mechanical properties in CuZr-based BMGs and their composites.…”

Isokinetic Analysis of Fe41Co7Cr15Mo14Y2C15B6 Bulk Metallic Glass: Effect of Minor Copper Addition

“…For instance, in BMGs with a maximum nucleation and the minimum growth rates, crystallization process can take place partially by controlling the kinetic parameters and as a result an amorphous matrix nanocomposite can be produced with excellent mechanical and magnetic properties [ 27 , 28 , 29 ]. On the other hand, the presence of alloying elements can strongly control the size of crystalline particles during annealing process [ 30 , 31 , 32 , 33 , 34 , 35 , 36 , 37 ]. For instance, Lesz et al [ 32 ] studied the effect of Ni addition on the thermal properties of a Fe-based amorphous alloy.…”