Crystallization behaviors of FeSiBPMo bulk metallic glasses

Structural and Phase Evolution upon Annealing of Fe76Si9−xB10P5Mox (x = 0, 1, 2 and 3) Alloys

“…As an effect of this displacement, the alloys with Mo show at 873 K the precipitation of the same intermediate phases that appear in the base alloy starting from 813 K, accompanied by the phases FeMo and Fe 0.875 Mo 0.125 ; at higher annealing temperatures, the precipitation of the α-Fe phase dominates. The structural evolution in Mo free glass upon annealing is more complicated than previously reported by Zhang et al [21]. In their work, they reported only the formation of Fe23B6, Fe3(B,P), and α-Fe(Si) phases, however in our work we observed several metastable phases like Fe2B, FeB, FeB2 close to the onset of first crystallization event.…”

“…With 1 at.% Mo we were able to cast amorphous rods with 2 mm diameter, however for 0, 2 and 3 at.% Mo content we were able to produce only ribbons. It can be deduced that there is a poor correlation between the parameters used to measure the GFA and the results reported by Zhang et al [21], who found an increase in the GFA with Mo addition, achieving a maximum casting diameter of 3.5 mm when 2 at.% Mo were added to the FeSiBP system. Another work reporting a poor correlation between the parameters to measure the GFA and the critical diameter obtained for iron-based BMGs has also been reported by Ponnambalam et al [22].…”

“…For more detailed TEM characterization, the Fe76Si9B10P5 and Fe76Si7B10P5Mo2 alloys were chosen The structural evolution in Mo free glass upon annealing is more complicated than previously reported by Zhang et al [21]. In their work, they reported only the formation of Fe 23 B 6, Fe 3 (B,P), and α-Fe(Si) phases, however in our work we observed several metastable phases like Fe 2 B, FeB, FeB 2 close to the onset of first crystallization event.…”

Enhanced glass forming ability of Fe-based amorphous alloys with minor Cu addition

“…Therefore, α-Fe (110) will be nucleated on the fcc-Cu (111) surface which can provide a low interfacial energy, i.e., Cu substitution can facilitate the segregation of α-Fe (110) phases. In addition, the Fe 23 B 6 phase has a complex face-centered cubic structure with a large lattice parameter of more than 1 nm including 96 atoms [21], and its precipitation from the network-like glassy structure requires high energy and long-range atomic rearrangements of constituent elements. The competitive formation of the Fe 23 B 6 and α-Fe (110) leads to the glassy phase upon the devitrification is drastically impeded.…”

The Study of Friction Materials in Brake Pad of Small Electric Car

“…Since the first piece of automotive brake pad came out in 1897, with the continuous development of auto industry and expanding of auto varieties, people put forward higher requirements of brake pads [1][2][3] . On the one hand, for the environmental protection and human health, the markets presented for the objective requirement which is the automobile brake pad without the asbestos; On the other hand, the manufacturing process and technical equipment of auto brake pads is also put forward more and more strict requirements.…”