Abstract
In the present work, we develop tungstenfree elec� trode materials that improve the effectiveness of elec� trospark alloying by reducing the erosive strength of the electrode materials. The physicochemical and operational characteristics of the alloyed layers are improved by introducing boronbearing materials that reduce the grain size of the electrode materials obtained by superhighspeed extrusion. In addition, variation of the parameters of the electrospark dis� charge permits nanostructuring of the alloyed layers. TiCbased batch for electrode materials is made by mixing Ti, No, Mo and DTC powder with soot in a ball mill for 4 h. Cylindrical blanks are produced from this batch by preliminary pressing in a mold. The elec� trodes are produced by superhighspeed extrusion at the Institute of Structural Macrokinetics and Materi� als Science (Chernogolovka). In electrospark alloying, the change in mass of the cathode (steel 45) and erosion products from the anodes (TiC-Ni-Mo, with DTC additive) is deter� mined as a function of the alloying time, with various electrical parameters. The composition of the elec� trode materials is as follows:
Published Version
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