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http://dx.doi.org/10.12656/jksht.2017.30.4.164

Effect of Electron Irradiation on the Surface Hardness and Wear Characteristic of CrAlN Thin Film Deposited on the SKD61 Mold Steel  

Eom, Tae-Young (School of Materials Science and Engineering, University of Ulsan)
Song, Young-Hwan (School of Materials Science and Engineering, University of Ulsan)
Choi, Su-Hyun (School of Materials Science and Engineering, University of Ulsan)
Choi, Jin-Young (School of Materials Science and Engineering, University of Ulsan)
Heo, Sung-Bo (Korea Institute of Industrial Technology (KITECH))
Kim, Jun-Ho (Korea Institute of Industrial Technology (KITECH))
Kim, Daeil (School of Materials Science and Engineering, University of Ulsan)
Publication Information
Journal of the Korean Society for Heat Treatment / v.30, no.4, 2017 , pp. 164-168 More about this Journal
Abstract
Intense electron beam was irradiated on the CrAlN thin films deposited in SKD61 under different incident energies and then the effect of electron beam irradiation on the enhancement of surface hardness and wear resistance was investigated. Surface hardness and wear resistance of the CrAlN films is increased proportionally with the electron beam energy. While the surface hardness of as deposited CrAlN film is Hv ($0.1g{\cdot}f$) 450, the hardness oflectron irradiated (600 eV) film is Hv ($0.1g{\cdot}f$) 2050. The width of wear track of the untreated SKD61 is $X\_{\mu}m$, while the track-width of the electron irradiated CrAlN (600 eV) film is $787{\mu}m$, respectively. From the observed results, it is supposed that the optimal electron beam irradiation can be one of the useful surface treatment technologies for the enhancement of surface hardness and wear resistance of CrAlN/SKD61, simultaneously.
Keywords
CrAlN; SKD61; Electron beam irradiation; Surface hardness; Wear resistance;
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