On the constancy in wear characteristic of large area TiC–Ni coating developed by overlapping of TIG arc scanning

Sahu, Arti; Raheem, Abdu; Masanta, Manoj; Sahoo, Chinmaya Kumar

doi:10.1016/j.triboint.2020.106501

Cited by 16 publications

(3 citation statements)

References 26 publications

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“…When the pools are excessively melted, it would require overlapping distances to be reduced to maintain equal depth on the weak substrate. The number of passes needed to span for a coverage is also reduced when overlapping percentages are reduced [16][17][18].…”

Section: Microhardnessmentioning

confidence: 99%

Synthetization of TiC surface hardening using TIG melting technique - The effect of working distance

Idriss

Maleque

Afiq³

2022

IOP Conf. Ser.: Mater. Sci. Eng.

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Surface hardening with and without hard reinforcing material can be achieved by melting technique on the top substrate area via high energy input fusion. The aim is to apply TIG torch heat input of 1344 J/mm at two different working distances such as 0.5 mm and 1.5 mm to incorporate the preplaced TiC particulates on the surface of AISI 4340 low alloy steel. Results pertaining to the microstructural features, melt pool sizes, defects, topographies and microhardness were investigated using the optical microscope, scanning electron microscope and Vickers microhardness tester. The results showed that the heat loss through the arc column at 1.5 mm of working distance resulted small melt pool geometry and poor dissolution of TiC particulates. Lower working distance increases heating value leading more precipitation of TiC whilst minimizing those the undissolved particulates. The surface submerged at working distance of 0.5 mm produced microhardness ranging from 800 HV to 1500 HV. The work suggested that heat fusion can be enhanced by marginal working distance whilst saving the energy to melt instead of increasing the used voltage, current, decreasing scanning speed, or adding fluxes or shielding with special gasses.

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Section: Microhardnessmentioning

confidence: 99%

Synthetization of TiC surface hardening using TIG melting technique - The effect of working distance

Idriss

Maleque

Afiq³

2022

IOP Conf. Ser.: Mater. Sci. Eng.

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“…A high nano-hardness, low friction coe cient, and low wear rate can be obtained when the E was 300 J/m, showing a signi cantly improved mechanical performance compared to the SLM-processed unreinforced nickel-based alloys. Many researchers have conducted su cient research on additional effects of nickel-based alloys-TiC composite coatings [27][28][29][30][31].…”

Section: Introductionmentioning

confidence: 99%

Microstructure and mechanical properties investigation of Ni35A–TiC composite coating deposited on AISI 1045 steel by laser cladding

Zhang

Lian

Cao

et al. 2021

Int J Adv Manuf Technol

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In this research, the TiC-Ni35A composite coating was fabricated on the AISI 1045 steel substrate by laser cladding process. The cross-sectional morphology, microstructure, micro-hardness, and wear resistance of coatings obtained under different laser energy densities (E) and TiC powder ratios (PR) were analyzed.According to the results, all the coating had a reliable metallurgical bonding with the AISI 1045 steel substrate. The X-ray diffraction (XRD) analysis revealed that the coating phases were Ni and TiC. The average microhardness of the Ni35A-80wt.% TiC coating reached up to 75.12 HRC. The minimum coe cient of friction of the composite coating was only about 30% of the AISI 1045 substrate. The wear form was mainly adhesive wear when altering the TiC powder ratios, while the wear form also contained abrasion wear under different energy densities. The ability of decomposition and re-nucleation of TiC was signi cantly improved with the increase of laser energy densities and the decrease of TiC powder ratios.The micro-hardness, wear resistance, and coe cient of friction of the composite coating were improved because of the TiC strengthening phase particles. Compared with the AISI 1045 steel substrate, the microhardness and wear resistance of the composite coating was increased by 5.29 times and 6.26 times, respectively.

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“…Alloying the surface and creating a coating using a paste, coating, or a preliminary layer is much more detailed in traditional chemical thermal treatment (CHT) [11,12]. In modern research, the type of coating, paste is still used for carburizing [12], chromium-nickel plating [13], Fe-TiB2 [14] with plasma heating by a non-consumable electrode system in an inert gas (TIG). It is known that chromium carbides (CrxCy) are repeatedly added to matrix compositions to improve the hardened property [15][16][17].…”

Section: Introductionmentioning

confidence: 99%

Study of the Formation of the Alloyed Surface Layer During Plasma Heating of Mixtures of Cu-Sn/CrXCY Alloys

Nguyen¹,

Astafeva²,

Balanovskiy³

2021

Tribol. Ind.

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In this work, to assess the possibility of obtaining an alloyed layer by plasma heating of the mixture of the PRV-BrO10 alloy and the coating of the welding electrode OK 84.78. The study of the structure is given using the optical microscope MET-2 and the measurement of microhardness -hardness testers of the HMV-G series. It is established that with a thin layer of pre-coating, the coatings are completely saturated, and with a thick layer -the formed zones are different in microstructure and microhardness. In the case of 0.25 mm precoating thickness, the addition of chromium carbide leads the strong increasing of the hardness compared to tin-bronze alone. In the case of 0.50 mm pre-coating thickness, for the upper soft zone rich in copper, the average microhardness value is below 250 HV, and for hard particles in this zone in the range of 500-700 HV, the lower saturated zones have high hardness in a wide range . The slow scanning speed of the torch and a thick layer of pre-coating are the reason for incomplete saturation and the appearance of defects on the surface of St3 steel.

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On the constancy in wear characteristic of large area TiC–Ni coating developed by overlapping of TIG arc scanning

Cited by 16 publications

References 26 publications

Synthetization of TiC surface hardening using TIG melting technique - The effect of working distance

Synthetization of TiC surface hardening using TIG melting technique - The effect of working distance

Microstructure and mechanical properties investigation of Ni35A–TiC composite coating deposited on AISI 1045 steel by laser cladding

Study of the Formation of the Alloyed Surface Layer During Plasma Heating of Mixtures of Cu-Sn/CrXCY Alloys

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