Surface condition, microstructure and microhardness of boronized layers produced on Vanadis-6 steel after modification by diode laser

• Autorzy: Bartkowska A. , Jurči P. , Bartkowski D. , Przestacki D. , Hudáková M.

Identyfikatory

DOI

10.1515/amtm-2017-0011

• Języki publikacji: EN

Abstrakty

EN

The paper presents the study results of surface condition, microstructure and microhardness of Vanadis-6 tool steel after diffusion boriding and laser modification by diode laser. As a result of diffusion boriding the layers consisted of two phases: FeB and Fe ₂B. A bright area under the continuous boronized layers was visible. This zone was probably rich in boron. As a result of laser surface modification of boronized layers, the microstructure composed of three zones: remelted zone, heat affected zone and the substrate was obtained. The microstructure of remelted zone consisted of boron-martensite eutectic. The depth of laser track (total thickness of remelted zone and heat affected zone) was dependent on laser parameters (laser beam power density and scanning laser beam velocity). The microhardness of laser remelting boronized layer in comparison with diffusion boronized layer was slightly lower. The presence of heat affected zone was advantageous, because it allowed to obtain a mild microhardness gradient between the layer and the substrate.

Słowa kluczowe

EN

boronized layer; laser remelting; microstructure; microhardness

PL

przetapianie laserowe; mikrostruktura; mikrotwardość

• Wydawca: Wydawnictwo Politechniki Poznańskiej
• Czasopismo: Archives of Mechanical Technology and Materials
• Rocznik: 2017
• Tom: Vol. 37
• Strony: 70--75
• Opis fizyczny: Bibliogr. 15 poz., fig., tab.

Twórcy

autor

Bartkowska A.

• Poznan University of Technology, Institute of Materials Science and Engineering, Pl. M. Sklodowskiej-Curie 5, 60-965 Poznan, Poland

autor

Jurči P.

• Slovak University of Technology in Bratislava; Faculty of Materials Science and Technology in Trnava, Paulinska 16, 917 24 Trnava, Slovakia

autor

Bartkowski D.

• Poznan University of Technology, Institute of Materials Technology, Pl. M. Sklodowskiej-Curie 5, 60-965 Poznan, Poland

autor

Przestacki D.

• Poznan University of Technology, Institute of Mechanical Technology, Pl. M. Sklodowskiej-Curie 5, 60-965 Poznan, Poland

autor

Hudáková M.

• Slovak University of Technology in Bratislava; Faculty of Materials Science and Technology in Trnava, Paulinska 16, 917 24 Trnava, Slovakia

Bibliografia

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Uwagi

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