Microstructure, microhardness, phase analysis and chemical composition of laser remelted FeB-Fe2B surface layers produced on Vanadis-6 steel

Bartkowska, Aneta; Swadźba, Radosław; Popławski, M.; Bartkowski, Dariusz

doi:10.1016/j.optlastec.2016.07.010

Cited by 21 publications

(38 citation statements)

References 6 publications

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“…This phases were shown in mapping. In the previous paper [4], authors presented the mapping results of this kind of surface layers but after laser modification. This paper presents the quantitative results of chemical composition in the form of table.…”

Section: Phase Analysis and Chemical Compositionmentioning

confidence: 99%

“…The increase in boron content in the steel substrate results in the formation of expected iron borides. There are two types of these phases: FeB with microhardness ranged from 1800 to 1600 HV and Fe 2 B with microhardness ranged from 1600 to 1400 HV are formed [1][2][3][4][5]. Besides advantages such as high hardness, wear resistance, and resistance to chemical corrosion in many alkaline and acid solutions, the boronized layers show also some disadvantages.…”

Section: Introductionmentioning

confidence: 99%

“…Increasing of wear and corrosion resistance, as well as reduction the brittleness of boronized layers can be obtained by modification of these layers using chromium [1,6,7], nickel [8][9][10], and copper [6]. To achieve this purpose, the diffusion methods [1,6,8]; laser methods (e.g., laser hardening [11][12][13], laser remelting [4,7,14], laser alloying [15][16][17], laser cladding [18][19][20][21]); as well as the electroplating [8][9][10] or thermal spraying methods [22] can be applied. Laser remelting of boronized layers allows changes in their microstructure and properties.…”

Section: Introductionmentioning

confidence: 99%

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Microstructure, chemical composition, wear, and corrosion resistance of FeB–Fe2B–Fe3B surface layers produced on Vanadis-6 steel using CO2 laser

Bartkowska

Bartkowski

Swadźba

et al. 2017

Int J Adv Manuf Technol

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The paper presents the study results of laser modification of FeB-Fe 2 B surface layers produced on Vanadis-6 steel using pack cementation method. Microstructure, x-ray phase analysis, chemical composition study using wave dispersive spectrometry method, microhardness, corrosion resistance as well as surface condition, roughness, and wear resistance were investigated. The diffusion boronizing processes were performed at 900°C for 5 h in the EKabor® powder mixture. The boronized layers had a dual-phase microstructure composed of two types of iron borides, FeB and Fe 2 B, and their microhardness ranged from 1800 to 1400 HV. The laser surface modification was carried out on specimens after diffusion boronizing process using CO 2 laser with a nominal power of 2600 W. Laser beam power used in this experiment was equal to 1040 W and was constant. While the three values of scanning speed were used: 19, 48, and 75 mm/s. During laser modification, the multiple tracks were made where distance between of axis tracks was equal to 0.5 mm. As a result of this process, microstructure consisted of remelted zone, heat-affected zone, and substrate was obtained. In remelted zone, the boron-martensite eutectic was observed. Boronized layers after laser modification were characterized by the mild gradient of microhardness from surface to the substrate and their value was dependent on the scanning speed used and was between 1700 and 1100 HV. Corrosion resistance tests revealed reducing the current of corrosion in case of laser modification process. Wear resistance of laser modified specimens was improved in comparison to diffusion boronized layers.

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Section: Phase Analysis and Chemical Compositionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Microstructure, chemical composition, wear, and corrosion resistance of FeB–Fe2B–Fe3B surface layers produced on Vanadis-6 steel using CO2 laser

Bartkowska

Bartkowski

Swadźba

et al. 2017

Int J Adv Manuf Technol

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“…Therefore, to improve this phenomenon various methods of modification are used. For the modification of boronized layers, the diffusion [7,8], galvanic [9] and laser [10][11][12] processes are used. Recently the laser heat treatment has become more often used in industry.…”

Section: Introductionmentioning

confidence: 99%

“…It is extremely important for their use on the forming tool [11,15]. The aim of this study was to determine the influence of laser heat treatment parameters on the macrostructure, microstructure and microhardness of boronized layers produced on Vanadis-6 steel after laser modification.…”

Section: Introductionmentioning

confidence: 99%

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

Bartkowska

Jurči

Bartkowski

et al. 2017

Archives of Mechanical Technology and Materials

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A B S T R A C TThe 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 Fe2B. 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. K E Y W O R D SBoronized layer Laser remelting Microstructure Microhardness

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The effect of laser surface melting on the retained austenite and wear properties of AISI D2 tool steel

Moradiani

Beiranvand

Ratnayake

et al. 2022

Optik

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Microstructure, microhardness, phase analysis and chemical composition of laser remelted FeB-Fe2B surface layers produced on Vanadis-6 steel

Cited by 21 publications

References 6 publications

Microstructure, chemical composition, wear, and corrosion resistance of FeB–Fe2B–Fe3B surface layers produced on Vanadis-6 steel using CO2 laser

Microstructure, chemical composition, wear, and corrosion resistance of FeB–Fe2B–Fe3B surface layers produced on Vanadis-6 steel using CO2 laser

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

The effect of laser surface melting on the retained austenite and wear properties of AISI D2 tool steel

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