Wear Protection by Fe‐B‐C Hard Phases |
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| Authors: | Hans Berns Anastasia Saltykova Arne Röttger Dietrich Heger |
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| Affiliation: | 1. Ruhr‐Universit?t Bochum, Germany;2. TU Bergakademie Freiberg, Germany |
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| Abstract: | Four as‐cast iron alloys with (mass%) 1B + 3C, 2B + 2C, 3B + 1C and 4B + 1C were investigated in respect to their microstructure by optical and scanning electron microscopy with EDX and ESBD and by microprobe analysis. The microhardness of eutectic Fe3(C,B) increased with the B/C ratio and raised the resistance to scratching by Flint particles. The low melting range of the castings was used for the powder metallurgical production of a metal matrix composite by liquid phase sintering of admixed hard particles in an Fe‐B‐C base material. Abrasive wear tests showed that the eutectic carborides in the base material raised the wear resistance even more than the admixed particles. |
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