Formation of VC-composite surface layer on high C–Cr bearing tool steel by laser surface cladding

El-Labban, Hashem F.; Mahmoud, Essam R. I.; Al-Wadai, Hussein

doi:10.1016/j.jmapro.2015.08.004

Cited by 27 publications

(4 citation statements)

References 37 publications

(45 reference statements)

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“…Superior mechanical properties can be achieved when fine, thermally stable, and hard reinforcement(s) with good and clean interfacial bonding are dispersed uniformly in the metal matrix. As suggested by several authors [ 8 ], such characteristics can be obtained when the reinforcements are formed inside the matrix during MMCs fabrication (i.e. , in-situ intermetallics) [ 9 ].…”

Section: Introductionmentioning

confidence: 99%

Development of in-Situ Al-Si/CuAl2 Metal Matrix Composites: Microstructure, Hardness, and Wear Behavior

Tash

Mahmoud

2016

Materials

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In the present work, in-situ metal matrix composites were fabricated through squeeze casting. The copper particles were dispersed with different weight percentages (3%, 6%, 10%, and 15%) into Al-12% Si piston alloy. Also, heat treatments were performed at 380 °C and 450 °C for holding times of 6 and 18 h. The microstructures, X-ray diffractometer (XRD) pattern, hardness, and wear characteristics were evaluated. The results showed that these copper particles have reacted with the aluminum under all of the aforementioned processing conditions resulting in the formation of fine copper aluminide intermetallics. Most of the intermetallics were CuAl2, while AlCu appeared in a small ratio. Additionally, these intermetallics were homogenously distributed within the alloy matrix with up to 6% Cu addition. The amounts of those intermetallics increased after performing heat treatment. Most of these intermetallics were CuAl2 at 380 °C, while the Cu-rich intermetallics appeared at 450 °C. Increasing the holding time to 18 h, however, led to grain coarsening and resulted in the formation of some cracks. The hardness of the resulting composite materials was improved. The hardness value reached to about 170 HV after heat treating at 380 °C for 8 h. The wear resistance of the resulting composite materials was remarkably improved, especially at lower additions of Cu and at the lower heat treatment temperature.

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Section: Introductionmentioning

confidence: 99%

Development of in-Situ Al-Si/CuAl2 Metal Matrix Composites: Microstructure, Hardness, and Wear Behavior

Tash

Mahmoud

2016

Materials

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“…Zhang et al 14 enhanced the coating by changing the VC content and reported that a moderate VC concentration improved the corrosion resistance of the coating. El-Labban et al 16 used VC to enhance the use of tool steel and improve its mechanical properties. The above examples show that VC enhances the performance of coatings.…”

Section: ■ Introductionmentioning

confidence: 99%

Enhancement of the Wear Resistance and Corrosion Resistance of Electroplated Ni–W–B Coatings Using PDA-Functionalized VC

Gong,

He,

Yan

et al. 2024

Langmuir

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In this study, vanadium carbide (VC) was used as the raw material to synthesize PDA-functionalized VC (P-VC). VC and P-VC were added as nanoreinforced materials to the Ni–W–B coating. The effects of the two nanomaterials on the morphology, wear resistance, and corrosion resistance of the Ni–W–B coatings were investigated and compared. The experimental results show that the surface of the Ni–W–B/P-VC coating is denser and more uniform than that of the Ni–W–B and Ni–W–B/VC coatings, and there are no obvious defects on the surface. According to the hardness test, the Ni–W–B/P-VC coating reaches the highest microhardness of 887.1 HV. According to the friction and wear tests, the Ni–W–B/P-VC coating has the shallowest scratches, the lowest average friction coefficient (COF = 0.274), and the lowest wear rate (9.578 × 10–8 mm2/N). The corrosion resistance is the best, the corrosion rate is 0.0456 mm/y, and the impedance value Rt reaches 14,501 Ω·cm2.

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“…In recent years, many studies focused on the surface-strengthening treatment of bearing materials such as shot peening (RP), laser cladding (LC), and composite surface treatment [2,3]. Ultrasonic Surface Rolling (USR) is a technique that can deepen the hardened layer and smoothen the surface.…”

Section: Introductionmentioning

confidence: 99%

Effect of ultrasonic surface rolling on fretting wear behavior of GCr15 steel

Sun

Zhang

Xia

et al. 2023

J. Phys.: Conf. Ser.

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Bearings are susceptible to fretting wear between the rolling element and the collar, which affects the normal service of bearings. In order to improve the fretting wear performance of GCr15 bearing steel, ultrasonic surface rolling treatment was performed on GCr15 steel under different static pressures and passes, and the fretting wear test was then carried out. Test results showed that the surface roughness was decreased and the microhardness was increased after ultrasonic surface rolling treatment. With an increase in static pressure and passes, the roughness decreases and the microhardness increased. Besides, a lower steady friction coefficient and fretting wear volume were obtained with the specimens performed by ultrasonic surface rolling treatment. With an increase in static pressure and passes, the wear volume and steady friction coefficient decreased together. Furthermore, the mechanism of fretting wear changed from severe adhesive wear, fatigue wear, and abrasive wear to abrasive wear and slight adhesive wear due to the application of ultrasonic surface rolling treatment.

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Formation of VC-composite surface layer on high C–Cr bearing tool steel by laser surface cladding

Cited by 27 publications

References 37 publications

Development of in-Situ Al-Si/CuAl2 Metal Matrix Composites: Microstructure, Hardness, and Wear Behavior

Development of in-Situ Al-Si/CuAl2 Metal Matrix Composites: Microstructure, Hardness, and Wear Behavior

Enhancement of the Wear Resistance and Corrosion Resistance of Electroplated Ni–W–B Coatings Using PDA-Functionalized VC

Effect of ultrasonic surface rolling on fretting wear behavior of GCr15 steel

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