Ti50Cu25Ni20Sn5 bulk metallic glass fabricated by powder consolidation

Hot Consolidation of Partially Amorphous Cu-Ti Based Alloy: a Comparison Between Hot Extrusion and Hot Compaction by Sintering

“…Processes of amorphization by mechanical alloying have been described in Cu-Ti-Zr-Ni systems [7][8][9] . Consolidation of amorphous powder can be achieved by ultra-high pressure (UHP), by taking advantage of the decrease in viscosity of the supercooled-liquid region 10 , sintering-spark plasma (SPS) [11][12][13] , equal channel angular extrusion (ECAE) 14 and extrusion 15 . According to preliminary tests 16 , the Cu 36 Ti 34 Zr 22 Ni 8 alloy is a strong candidate to form metallic glass.…”

Fabrication of Ti–Cu–Ni–Al amorphous alloys by mechanical alloying and mechanical milling

“…For alloys that need extremely high cooling rates to form amorphous phase from liquids, the mechanical alloying (MA) of elemental powder mixtures can be an alternative processing route to produce amorphous phase [9][10][11][12][13][14][15][16][17][18][19]. The product produced by MA is in powder form and is suitable for compaction and densification into various shapes.…”

“…The product produced by MA is in powder form and is suitable for compaction and densification into various shapes. Using several densification methods, the densification of amorphous powder at temperatures above the glass transition temperature in the supercooled liquid regime has been conducted in many alloys [13,15,[20][21][22]. The amorphization of a material is also realized in mechanical milling (MM), which is the milling of uniform-composition powders such as prealloyed intermetallic compound powders.…”

Spark plasma sintering of amorphous-crystalline laminated composites

“…While significant progress has been made in increasing the critical diameter of the amorphous castings, this has limited the amorphous compositions to certain multi-component systems with enhanced glass forming abilities. Since powder and thin foils of amorphous material can be readily produced, several attempts have been made to consolidate them into bulk shapes using solid state sintering (hot pressing) [12,13]. For example, Zhou et al investigated consolidation behavior of Ni-based amorphous ribbons [14].…”