ISSN:
1573-9066
Source:
Springer Online Journal Archives 1860-2000
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
Conclusions It has been established that a decisive influence on AL formation in ESA with a TiB2 base alloy is exerted by the microstructure of the material, which depends on its composition and sintering temperature. The best results are obtained with an “annular” alloy structure of low porosity, in which fine grains of the hard phase are separated by interlayers of the lower-melting-point component, whose concentration does not exceed 20%. This ensures that the electrode erosion products consist mainly of particles with low-melting-point component “shells,” which firmly adhere to the cathode surface. The specific erosion of the electrode diminishes with treatment time owing to the formation on its surface of a secondary structure as a result of changes in the porosity and phase composition of its surface layer. The main phase constituents in the coating and anode material at all Mo binder contents are TiB2 andβ-MoB.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00802427
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