Cu-Rich Cu–Al–Ln (Ln=Ce or Nd) Amorphous Alloys

A centimeter-size Zr 40 Hf 10 Ti 4 Y 1 Al 10 Cu 25 Ni 7 Co 2 Fe 1 bulk metallic glass with high mixing entropy designed by multi-substitution

“…Furthermore, as shown in previous studies [6,17], the substitution of elements with similar atomic radius and low mixing enthalpy with substituent elements (i.e. Ti-Zr [18], Hf-Zr [19],Y-Zr [20], Ni-Cu [21], Co-Cu [17], Fe-Cu [22], etc., denoted as 'similar element' hereinafter) is useful for enhancing the GFA of BMGs. It could be deduced that multi-substitution of elements, i.e.…”

A Ti-based bulk glassy alloy with high strength and good glass forming ability

“…During last decades, great effort has been devoted to find BMGs with large GFA and many significant results have been achieved in many alloys systems [3e8]. For example, according to the "confusion principle", the critical size for glass formation of ZreTieCueNi could be enhanced to 50 mm after addition of Be element [9]; by minor addition of heavy rare earth metals, "bulk amorphous steel" with centimeter dimension could be fabricated [10,11]; with similar element's addition, Ln-and Pd-based glassy alloys with critical diameter of 32 mm and 72 mm, respectively, could be prepared [12,13]. As for Ti-based alloys, Ti 45 Zr 20 Be 35 and Ti 40 Zr 10 Cu 34 Pd 14 Sn 2 BMGs with the critical size of 10 mm have been prepared [14e17], despite of that the critical size for most Ti-based BMGs without Pd and/or Be addition is less than 3 mm.…”

Structure, mechanical properties and imprint-ability of Pd–Cu–Ni–P glassy alloy thin film prepared by a pulsed-laser deposition method

“…Pd 42.5 Cu 30 Ni 7.5 P 20 was chosen as the alloy composition because this alloy has high glass forming ability and high thermal stability, as evidenced from the formation of a glassy rod with a diameter of 72 mm [12] and a large supercooled liquid region of 82 K [13]. The wavelength, pulse width, repetition rate and energy density of the laser are 266 nm, 70 ps, 15 Hz and 2 J/cm 2 , respectively.…”

“…It has been reported that three-dimensional structure with several tens or hundreds of nanometer could be prepared using Pt-, Zr-, Au-based glassy alloy ribbon and Zr-based glassy alloy in bulk form [6,8,9] or in a thin film form [10,11]. As compared with other glassy alloys, Pd-based glassy alloy [12,13] has attractive advantages such as extremely high thermal stability against crystallization, high oxidization resistance and low chemical reactivity with imprinting molds made of SiO 2 , favorable for easy and precise pattern imprinting. Therefore, Pdbased glassy alloy thin film is a promising candidate to fabricate nanostructured surface pattern.…”