On the Efficiency of Laser Alloying of Grey Cast Iron with Tungsten and Silicon Carbides

Feldshtein, Eugene; Devojno, Oleg; Patalas-Maliszewska, Justyna; Kardapolava, Marharyta; Kasiakova, Iryna

doi:10.3390/ma16186230

Cited by 2 publications

(3 citation statements)

References 29 publications

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“…600HV0.2. The maximum hardness of 1200HV100 was achieved in the surface layer of grey cast iron after laser alloying but with WC in the research (Feldshtein at al., 2023), maximum hardness of 1300HV100 was obtained but with SiC. Approx.…”

Section: Iron Boridesmentioning

confidence: 88%

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EVALUATION OF THE INFLUENCE OF THE LASER ALLOYING WITH Cr, B AND Ni OF GREY IRON PARTS ON THEIR WEAR RESISTANCE

Paczkowska

2024

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The aim of this research was to evaluate the influence of the laser alloying with Cr, Cr+B+Ni and B+Ni on the wear resistance of grey iron. Agricultural component (coulter flap) exposed on friction wear (as well as corrosion) in the soil has been take into account as a tested machine part. Even 85% decrease of mass loss of the coulter flap with laser alloyed layer (with nickel and boron) after wear test in comparison to mass loss of flap without laser treatment was achieved. In case of alloying with chromium it was 44% and in case of nickel, boron and chromium this decrease was 58%. Laser alloying in each perormed variant caused formation of the modified surface layer consisting of fine grains of mainly martensite enriched with alloy elements, increase of hardness of the surface layer and reduction of roughness parameters of the treated surface in comparison to the base surface.

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Section: Iron Boridesmentioning

confidence: 88%

“…The surface layer of grey iron can be effectively modified by laser treatment and especially alloying (Janicki at al. 2024, Feldshtein at al. 2023, Feldshtein at al.…”

Section: Introductionmentioning

confidence: 99%

EVALUATION OF THE INFLUENCE OF THE LASER ALLOYING WITH Cr, B AND Ni OF GREY IRON PARTS ON THEIR WEAR RESISTANCE

Paczkowska

2024

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“…Figure 9 illustrates the SEM images of the refined structure of alloyed GCI without defects or damages [68]. Fine graphite and hard carbides play a pivotal role in diminishing the wear rate.…”

Section: Tribological Propertiesmentioning

confidence: 99%

Improvements in Wear and Corrosion Resistance of Ti-W-Alloyed Gray Cast Iron by Tailoring Its Microstructural Properties

Razaq,

Yu,

Khan

et al. 2024

Materials

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The improved wear and corrosion resistance of gray cast iron (GCI) with enhanced mechanical properties is a proven stepping stone towards the longevity of its versatile industrial applications. In this article, we have tailored the microstructural properties of GCI by alloying it with titanium (Ti) and tungsten (W) additives, which resulted in improved mechanical, wear, and corrosion resistance. The results also show the nucleation of the B-, D-, and E-type graphite flakes with the A-type graphite flake in the alloyed GCI microstructure. Additionally, the alloyed microstructure demonstrated that the ratio of the pearlite volume percentage to the ferrite volume percentage was improved from 67/33 to 87/13, whereas a reduction in the maximum graphite length and average grain size from 356 ± 31 µm to 297 ± 16 µm and 378 ± 18 µm to 349 ± 19 µm was detected. Consequently, it improved the mechanical properties and wear and corrosion resistance of alloyed GCI. A significant improvement in Brinell hardness, yield strength, and tensile strength of the modified microstructure from 213 ± 7 BHN to 272 ± 8 BHN, 260 ± 3 MPa to 310 ± 2 MPa, and 346 ± 12 MPa to 375 ± 7 MPa was achieved, respectively. The substantial reduction in the wear rate of alloyed GCI from 8.49 × 10−3 mm3/N.m to 1.59 × 10−3 mm3/N.m resulted in the upgradation of the surface roughness quality from 297.625 nm to 192.553 nm. Due to the increase in the corrosion potential from −0.5832 V to −0.4813 V, the impedance of the alloyed GCI was increased from 1545 Ohm·cm2 to 2290 Ohm·cm2. On the basis of the achieved experimental results, it is suggested that the reliability of alloyed GCI based on experimentally validated microstructural compositions can be ensured during the operation of plants and components in a severe wear and corrosive environment. It can be predicted that the proposed alloyed GCI components are capable of preventing the premature failure of high-tech components susceptible to a wear and corrosion environment.

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On the Efficiency of Laser Alloying of Grey Cast Iron with Tungsten and Silicon Carbides

Cited by 2 publications

References 29 publications

EVALUATION OF THE INFLUENCE OF THE LASER ALLOYING WITH Cr, B AND Ni OF GREY IRON PARTS ON THEIR WEAR RESISTANCE

EVALUATION OF THE INFLUENCE OF THE LASER ALLOYING WITH Cr, B AND Ni OF GREY IRON PARTS ON THEIR WEAR RESISTANCE

Improvements in Wear and Corrosion Resistance of Ti-W-Alloyed Gray Cast Iron by Tailoring Its Microstructural Properties

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