Effect of Boronizing on Microhardness and Wear Resistance of Steel AISI 1050 and Chilled Cast Iron

Çalık, Adnan; Simsek, M.; Karakaş, Mustafa Serdar; Uçar, N.

doi:10.1007/s11041-014-9710-4

Cited by 13 publications

(12 citation statements)

References 24 publications

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“…When the hardness of the boride layer of Hardox 450 steel is compared to that of HiTuf steel, the boride layer hardness of Hardox 450 steel is 30% higher than that of Hituf steel because of the high content of Cr alloy element (Table 1). It is well known that Cr decreases forming of boride layer [34].…”

Section: Resultsmentioning

confidence: 99%

Effect of pack-boriding on the tribological behavior of Hardox 450 and HiTuf Steels

Aktaş

Toprak

Çalık

et al. 2020

Reviews on Advanced Materials Science

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In this study, Hardox 450 and HiTuf steels were boronized by pack-boriding method at 800, 900, and 1000∘C for 5 h. The phases, microstructure, hardness, and wear behavior of boride layers formed on the surface of samples were investigated using XRD, SEM, Micro-Vickers hardness testers, and a pin-on-disc tribotester, respectively. XRD analysis showed that both FeB and Fe2B phases were formed in the borided area of Hardox 450 steel, but only Fe2B phase occurred in the boride layer of the HiTuf steel. Micro-Vickers hardness results indicated that the hardness values of the boride layer decreased from the column-shaped structure to towards the matrix in both of Hardox 450 and HiTuf steels. Furthermore, the wear test results showed the coefficients of friction (COF) decreased significantly in the borided samples. The COF of the unborided Hardox 450 steel was reduced considerably from 0.29 to 0.02 by boriding treatment. Similarly, the COF of unborided HiTuf steel was significantly diminished from 0.16 to 0.04 by boriding treatment. In conclusion, the results of this study have indicated that the wear resistance of Hardox 450 and HiTuf steels can be improved by pack-boriding.

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Section: Resultsmentioning

confidence: 99%

Effect of pack-boriding on the tribological behavior of Hardox 450 and HiTuf Steels

Aktaş

Toprak

Çalık

et al. 2020

Reviews on Advanced Materials Science

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“…One method of saturating the steel surface to improve its mechanical and operation properties is the diffusion boronizing process [1]. As a result of this process, a layer with very good properties such as high microhardness, good wear and corrosion resistance may be obtained [1][2][3][4]. Due to the needle-like microstructure, the boronized layer is characterized by good bonding with the steel substrate.…”

Section: Introductionmentioning

confidence: 99%

INFLUENCE OF LASER PROCESSING ON THE MICROSTRUCTURE, MICROHARDNESS AND CORROSION RESISTANCE OF DIFFUSION BORONIZED LAYER PRODUCED ON 145Cr6 TOOL STEEl

Bartkowska

Bartkowski

Jurči

et al. 2020

METAL 2020 Conference Proeedings

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The paper presents the results of laser processing of diffusion boronized layer on 145Cr6 tool steel. The aim of the study was to investigate the microstructure, phase composition analysis, microhardness as well as corrosion resistance of the newly-formed layer. Boronized layer was produced at 950 °C by 6 h in mixture consisted of boron carbide B4C as a source of boron, kaolin as a filler and ammonium chloride as activator. Laser processing were conducted using 3 kW diode laser. As a result of influence the laser beam on the boronized layers the presence of three areas was observed: remelted zone, heat affected zone and substrate. The boronized layers after laser processing were characterized by high microhardness and good corrosion resistance. The zone enrich in boron was a 2-3 times thicker than diffusion boronized layer.

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“…After diffusion boronizing, the machine parts and tools have decreased susceptibility on wear, especially in the case of total lack of lubrication or restricted of it [1][2][3][4][5][6]. Diffusion boronized layer has many advantages such as high hardness, good corrosion resistance with a number of acid and alkali and mentioned earlier good wear resistance.…”

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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Effect of Boronizing on Microhardness and Wear Resistance of Steel AISI 1050 and Chilled Cast Iron

Cited by 13 publications

References 24 publications

Effect of pack-boriding on the tribological behavior of Hardox 450 and HiTuf Steels

Effect of pack-boriding on the tribological behavior of Hardox 450 and HiTuf Steels

INFLUENCE OF LASER PROCESSING ON THE MICROSTRUCTURE, MICROHARDNESS AND CORROSION RESISTANCE OF DIFFUSION BORONIZED LAYER PRODUCED ON 145Cr6 TOOL STEEl

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

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