Improvement of the thermal stability of Gd–Dy–Al–Co bulk metallic glass by the addition of high bulk modulus elements

Calorimetric study and Kissinger analysis of melt-spun DyMn6−xGe6−xFexAlx (1⩽x⩽2.5) alloys

“…For Gd-Fe-Al-Ni this value increases to 425 kJ/mol [12]. Similar multinary systems with rare earth elements, transition metal and other metal or in some cases metalloid Gd-Dy-Al-Co-(Ge) have been very recently investigated and their activation energies of crystallization reach values up to about 315 kJ/mol (3.27 eV) [13]. Wilson et al [11] suggest that with lowering of Al content both crystallization temperature and enthalpy increase.…”

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

“…Thermal stability is one of the critical issues for BMGs applied for energy transfer parts or used in high temperature conditions. Glass transition temperature, crystallization temperature and super-cooled liquid region are usually employed to estimate the thermal stability of metallic glasses [11]. Nucleation studies of BMGs are of importance in understanding mechanism of phase transformation far from equilibrium, evaluating the glass-forming ability of melt and producing controlled ultra-refined microstructure [12].…”

Glass forming ability, magnetic and mechanical properties of (Fe72Mo4B24)100−xDyx (x=4–7) bulk metallic glasses

“…There is little investigation on other Ln elements. In addition, studies of BMGs have indicated that the thermal stabilities of amorphous alloys would be enhanced by the addition of high bulk modulus elements into the alloys [14]. Li et al reported that a new family of heavy RE-based Dy-Y-Al-Co BMGs can be cast into full glassy rods up to 5 mm in diameter, and Dy element with a relatively higher bulk modulus (41 GPa) among RE metals has more positive effects in the development of BMGs [15].…”