Abrasive Wear Behavior and Its Relation with the Macro-indentation Fracture Toughness of an Fe-Based Super-Hard Hardfacing Deposit

Bahoosh, Mohtasham; Shahverdi, Hamid Reza; Farnia, Amirreza

doi:10.1007/s11249-019-1213-4

Cited by 13 publications

(4 citation statements)

References 21 publications

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“…However, experiment no. 3 shows the poor quality characteristics as compared with all other conditions such as lack of fusion of the wire. In the experiments carried out by Han et al [41], they also noticed the lack of fusion of the wire and its appearance on the surface of the bead.…”

Section: Step 3 Calculate Multi-objective Function For All Populationsmentioning

confidence: 94%

“…As discussed by Chaidemenopoulos et al [2], weld feed material composition for hardfacing purposes usually contains a high content of carbon and carbide forming elements. According to Bahoosh et al [3], the concept increases hardness, improves tribological properties, and extends components service life in many engineering applications. Pawar et al [4] also mentioned that the hardfacing process could improve surface wear resistance or even restore worn-out surfaces.…”

Section: Introductionmentioning

confidence: 99%

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Investigations on quality characteristics in gas tungsten arc welding process using artificial neural network integrated with genetic algorithm

Tomaz

Colaço

Sarfraz

et al. 2021

Int J Adv Manuf Technol

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Gas tungsten arc welding (GTAW) technology is widely used in industry and has advantages, including high precision, excellent welding quality, and low equipment cost. However, the inclusion of a large number of process parameters hinders its application on a wider scale. Therefore, there is a need to implement the prediction and optimization models that effectively enhance the process performance of the GTAW process in different applications. In this study, a five-factor five-level central composite design (CCD) matrix was used to conduct GTAW experiments. AISI 1020 steel blank was used as a substrate; UTP AF Ledurit 60 and UTP AF Ledurit 68 were used as the materials of two tubular wires. Further, an artificial neural network (ANN) was used to simulate the GTAW process and then combined with a genetic algorithm (GA) to determine welding parameters that can provide an optimal weld. In welding experiments, five different welding current levels, welding speed, distance to the nozzle, angle of movement, and frequency of the wire feed pulses were used. Using GA, optimal welding parameters were determined: welding current = 222 A, welding speed = 25 cm/min, nozzle deflection distance = 8 mm, travel angle = 25°, wire feed pulse frequency = 8 Hz. The determination coefficient (R2) and RMSE value of all response parameters are satisfactory, and the R2 of all the data remained higher than 0.65.

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Section: Step 3 Calculate Multi-objective Function For All Populationsmentioning

confidence: 94%

Section: Introductionmentioning

confidence: 99%

Investigations on quality characteristics in gas tungsten arc welding process using artificial neural network integrated with genetic algorithm

Tomaz

Colaço

Sarfraz

et al. 2021

Int J Adv Manuf Technol

View full text Add to dashboard Cite

show abstract

“…The adhesive phase contributes to forming the compactness structure for the hard particles in the cladding layer, which is positive to absorb the energy and buffer the loads as the grinding ball slides over the surface of the composites. It is a reasonable origin for improving the comprehensive performance of the cladding layer [31,32].…”

Section: Wear Resistancementioning

confidence: 99%

Microstructure and properties of WC/diamond/Co-based gradient composite coatings on high-speed steel fabricated by laser cladding

Liu

Liang

Hao

et al. 2021

Int J Adv Manuf Technol

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Improving the wear resistance and corrosion resistance of high-speed steel (HSS), WC/diamond/Cobased gradient composite coatings were produced on HSS substrates by laser cladding with different compositions powder mixture (Co-Cr alloy powder, 80Co-Cr alloy powder+20WC, 53Co-Cr alloy powder+40WC+7diamond, wt.%). The macromorphology, microstructures and phase composition were characterized by optical microscope (OM), scanning electron microscopy (SEM) equipped with energy dispersion spectrometry (EDS), and X-ray diffraction (XRD) techniques. The microhardness, wear resistance and corrosion resistance of the gradient coatings were also investigated respectively. The results indicate that the prepared WC/diamond/Co-based gradient composite cladding layer has a ne morphology on the cross sections and a gradient transition of the grain size has been achieved. The microhardness result presents gradient distribution along the depth of the coating. The microhardness is strengthened due to the dispersions of M 7 C 3 (M is Fe, Cr), Co 3 C, CrCo, Cr 3 C 2 , Fe 3 C in the composite coating, and the highest microhardness of 1342 HV 0.2 can be detected in the cladding layer. The friction coe cient values of the coatings range from 0.27 to 0.40, which is much lower than that of the substrate (0.50-0.60). Furthermore, the wear loss of coatings decreases by more than 3 times comparing with that of the substrate (3.5 mg). The polarization resistance results show that the cladding layer has excellent corrosion resistance with polarization resistance can reach the value of 236488.1 Ω•cm 2 . The gradient transition of the mechanical properties and chemical metallurgical combination between particle (WC, diamond) and adhesive phase can be obtained in laser cladding, which improves the wear resistance and corrosion resistance of the HSS surface.

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“…One of the ways to improve wear resistance is hardfacing. This procedure uses the application of a filler metal that is harder than the substrate, improving the tribological properties and extending the life time of the components [1][2][3] . The deposition of coatings via electric arc shows excellent results in abrasion resistance applications [4][5][6] .…”

Section: Introductionmentioning

confidence: 99%

Dry Sliding Wear Resistance of Fe-Cr-C hardfacing Deposited by Flux-Core-Double-Wire GTAW

et al. 2023

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Gas-Shielded Tungsten Arc Welding (GTAW) was modified to a Flux-Cored-Double-Wire GTAW (FCDW-GTAW); in this technique, wires of different compositions are used simultaneously to obtain different microstructures. In the modified GTAW, automatic flux-cored double-wire was used with a combination of four different wires deposited in AISI1020 steel, allowing different microstructures. Pin-on-disk wear tests described by ASTM G99 was used to evaluate the wear coefficients of four hardfacing materials combining Fe-Cr-C, Fe-Cr-C-Nb, Fe-Cr-C-Mo-Nb, and Fe-Cr-C-Mo-Ti alloys. The combination of these wires resulted in a hypoeutectic microstructure with niobium and titanium carbides, with an average hardness of 650 HV 0.3 , and hypereutectic microstructures formed by different niobium contents, with a microhardness range from 820 to 1020 HV 0.3 . The wear tests were performed without lubrication at room temperature, using a 6.0 mm diameter polished alumina sphere as a counter-body. The total distance covered was 1000 m with a speed of 0.1 m/s, a track radius of 6.0 cm, and an applied load of 10 N. Hardness, microstructure, wear coefficient, and wear mechanisms were compared. The results showed that wear resistance could be differentiated by the predominant wear mechanism: polishing for the hypoeutectic hardfacing and cracking for the hypereutectic ones.

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Abrasive Wear Behavior and Its Relation with the Macro-indentation Fracture Toughness of an Fe-Based Super-Hard Hardfacing Deposit

Cited by 13 publications

References 21 publications

Investigations on quality characteristics in gas tungsten arc welding process using artificial neural network integrated with genetic algorithm

Investigations on quality characteristics in gas tungsten arc welding process using artificial neural network integrated with genetic algorithm

Microstructure and properties of WC/diamond/Co-based gradient composite coatings on high-speed steel fabricated by laser cladding

Dry Sliding Wear Resistance of Fe-Cr-C hardfacing Deposited by Flux-Core-Double-Wire GTAW

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