Spinal Neurinomas

Hardness improvement of surface alloyed materials fabricated with Fe based metamorphic powders by high energy electron beam irradiation

“…11 However, a self-fluxing property was recently found in Ni based alloys containing Cr, B, Si and C during welding, hardfacing, thermal spray coating and brazing. 12 These elements react with oxides at high temperatures to form compounds such as borosilicates having low melting temperatures, which prevent oxidation of the alloys even when the flux is not added. In the present study, Fe based metamorphic powders containing a large amount of Cr, B, Si and C were used for the fabrication of surface alloyed materials, and thus the self-fluxing effect could be expected.…”

Correlation of microstructure with hardness and wear resistance in Cr3C2/stainless steel surface composites fabricated by high-energy electron beam irradiation

“…Self-fluxing property was recently found in Ni-based alloys containing Cr, B, Si and C during welding, hardfacing, thermal spray coating and brazing [15]. The alloys spontaneously play a role of flux even when flux is not used during the processes.…”

“…After mixing Cr 3 C 2 powders with CaF 2 flux powders, the mixture was dried at 200 • C for 2 h. The powder mixture was evenly placed on the stainless steel substrate, and then compacted with a 300 kPa pressure (density, 0.18 g/cm 3 ). The powder mixture of Cr 3 C 2 powders or Cr + C powders without the flux addition was also prepared in order to investigate the self-fluxing effect [15]. Here, the Cr + C powder mixture had atomic percent ratio of 3:2 (weight percent ratio of 7:1) to obtain the same effect of the Cr 3 C 2 powder mixture.…”