Laser alloying of Vanadis-6 steel by using powders containing boron and tungsten

• Autorzy: Bartkowska A. , Popławski M. , Kinal G. , Przestacki D.

Identyfikatory

DOI

10.15199/28.2017.2.6

Warianty tytułu

PL

Laserowe stopowanie stali Vanadis-6 proszkami zawierającymi bor i wolfram

• Języki publikacji: EN

Abstrakty

EN

The paper presents the influence of laser alloying on microstructure and microhardness of Vanadis-6 steel. The surface layers were formed by remelting paste which was applied on to the steel substrate. Three kind of pastes were applied: with boron, with tungsten and the mixture of these elements in the ratio 1:1. TRUDIODE 3006 diode laser with nominal power equal to 3 kW integrated with robot arm were used. Parameters of laser alloying were following: power density of laser beam q = 63.69 kW/cm2, scanning rate v = 3.0 m/min and overlap of laser tracks equal to 60%. Microstructure of produced laser tracks were analysed. Surface roughness after laser alloying were investigated. After laser alloying, microstructure consisting with remelted zone and martensitic heat affected zone were obtained. Application of paste with tungsten had contributed to formation the solid solution microstructure, while application of paste with boron or mixture (boron and tungsten) led to formation of boron–martensite eutectic microstructure. Microhardness of laser tracks were measured. It was found that paste containing boron and tungsten allows obtain the layers with increased microhardness compared to steel substrate while maintaining the mild microhardness profile from surface to the substrate.

PL

W pracy przedstawiono wyniki badań wpływu laserowego stopowania wybranymi proszkami na mikrostrukturę, mikrotwardość i chropowatość powierzchni stali Vanadis-6. Warstwy powierzchniowe wytworzono przez przetopienie past naniesionych na podłoże stalowe, zawierających bor, wolfram oraz mieszaninę tych pierwiastków w proporcji 1:1. Celem pracy było określenie wpływu poszczególnych pierwiastków na wybrane właściwości.

Słowa kluczowe

EN

Vanadis 6; laser alloying; boron; tungsten

PL

Vanadis 6; laserowe stopowanie; bor; wolfram

• Wydawca: Wydawnictwo SIGMA-NOT
• Czasopismo: Inżynieria Materiałowa
• Rocznik: 2017
• Tom: Vol. 38, nr 2
• Strony: 93--97
• Opis fizyczny: Bibliogr. 19 poz., fig., tab.

Twórcy

autor

Bartkowska A.

• Institute of Materials Science and Engineering, Poznan University of Technology, Poznan

autor

Popławski M.

• Institute of Materials Science and Engineering, Poznan University of Technology, Poznan

autor

Kinal G.

• Institute of Machines and Motor Vehicles, Poznan University of Technology, Poznan

autor

Przestacki D.

• Institute of Mechanical Technology, Poznan University of Technology, Poznan

Bibliografia

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Uwagi

Opracowanie ze środków MNiSW w ramach umowy 812/P-DUN/2016 na działalność upowszechniającą naukę (zadania 2017).