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1. Change of the properties of steel material of the roller cone bit due to the influence of the drilling operational parameters and rock properties Jurij Šporin, Tilen Balaško, Primož Mrvar, Blaž Janc, Željko Vukelić, 2020, izvirni znanstveni članek Ključne besede: drilling, roller cone bit, mechanism of drill bit wear, carbide coating, HV hardness, high temperature |
2. Expression of the self-sharpening mechanism of a roller cone bit during wear due to the influence of the erosion protection carbide coating Jurij Šporin, Primož Mrvar, Blaž Janc, Željko Vukelić, 2021, izvirni znanstveni članek Ključne besede: carbide coating, erosion effect, micro channel, disintegration, drilling |