Influence of Deposition and Laser Treatment on Some Characteristics of Medium Carbon Steel

Katarina Monkova; Peter Monka

doi:10.4028/www.scientific.net/KEM.730.306

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HomeKey Engineering MaterialsKey Engineering Materials Vol. 730Influence of Deposition and Laser Treatment on...

Influence of Deposition and Laser Treatment on Some Characteristics of Medium Carbon Steel

Abstract:

The article deals with the influence of WC-Co deposition layer on some properties of steel C45. The coating was obtained by electro spark deposition followed by a laser treatment with three different powers of laser beam. Within experiments the tribological measurements were carried out at which wear resistance and friction coefficient were investigated. The results have shown that the highest coefficient of friction was measured at uncoated steel C45 without laser processing. The micro-hardness has been studied in three various layers of the samples. It can be said that towards the surface micro-hardness is significantly increasing. Maximum value of micro-hardness has shown steel with WC-Co coating, but after laser treatment the micro-hardness slightly decreased. Using point and line analysis, it was possible to find an evidence about mixing of C45 steel with WC-Co coating, i.e. about alloying. Based on results it is possible to say that laser treatment modifies the properties of coats applied in electro spark way along with base material.

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Periodical:

Key Engineering Materials (Volume 730)

Pages:

306-311

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.730.306

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Online since:

February 2017

Authors:

Katarina Monkova*, Peter Monka

Keywords:

Coating, Electro Spark, Laser Treatment, Properties, Steel

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