Effect of silicon addition on the glass-forming ability of a Zr–Cu-based alloy

Effect of cryogenic treatment on microstructure and mechanical behaviors of the Cu-based bulk metallic glass matrix composite

“…1. As indicated by the XRD pattern, the visible crystalline peaks corresponding to the CuZr crystalline phase (Pdf #49-1483) was detected, which was in accordance with the literature [11]. The CuZr crystalline phase was in the form of rotundity and was mainly located in the amorphous area.…”

Influences of ion implantation on non-isothermal crystallization behaviors of bulk metallic glass

“…Meanwhile, Zr-based BMGs have super glass-forming abilities (GFAs), which have offer many facilities to scientific researches. However, the researchers in this domain mainly focused on their preparations, GFAs, mechanical properties, thermodynamic and oxidative behaviors [1][2][3][4][5][6] as well as impurity diffusions [7][8][9]. Reports on ion implantation in BMGs were few [10].…”

Effects of Si addition on the oxidation behavior of a Cu–Zr-based bulk metallic alloy

“…Very likely, Si did not react with oxygen but diffused back into the glassy substrate, which in turn resulted in forming the crystalline ZreSi phases. Besides, the heat of mixing (in unit of kJ/mol) for the ZreSi intermetallics was about À84, which is much more negative than that of ZreAl (À44), ZreCu (À23), ZreAg (À20) CueSi (À19), and CueAl (À1) [8,12]. Thus, the formation of ZrSi 2 precipitates in the scale/substrate interface became thermodynamically and kinetically favorable.…”

“…This BMG also exhibited a higher compressive strength near 2000 MPa and a plastic deformation around 8% [7]. In addition, another study reported that small amounts of Si addition (such as the CZ43S-BMG) could further increase the GFA of the glassy alloy, which offered a better thermal property to resist the devitrification for industrial applications [8]. To use those BMGs at elevated temperatures for practical purposes, it is essential to understand their airoxidation behavior.…”