Abstract

The wear properties and microstructural characteristics of specimen Inconel718 and stainless steel 316L, obtained by laser metal deposition, the carbon fibers reinforced (Inconel718/CFs/316L) was investigated. Microstructure has different morphologies in transition lyers Inconel718/CFs/316L. The addition of carbon fiber during growing specimens makes it possible to increase the resistance wear of the steel counterparts during test friction pair with increased loads. It was established that in the process of interaction of carbon fiber with Cr, the formation of hexagonal Cr23C6 single crystals occurs, which is inherited from the crystallographic orientation of the carbon in the carbon fiber. Shown, that the growing of Cr23C6 single crystals in specimen obtained by LMD process, depending on the direction of carbon fiber packing and size of carbon fibers. It has been shown that as a result of the formation of Inconel718/CFs/316L, the formation of a eutectic carbides Cr7C3 skeleton shape is possible. It is established that the formation of carbides leads to an increase in hardness in Inconel718/CFs/316L relative to 316L by 2 times, and relative to Inconel718 by 1.5 times.

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