Wear behavior of self-lubricating boride layers produced on Inconel 600-alloy by laser alloying

Piasecki, Adam; Kotkowiak, Mateusz; Makuch, Natalia; Kulka, Michał

doi:10.1016/j.wear.2018.12.026

Cited by 30 publications

(15 citation statements)

References 23 publications

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“…NiCr shows a noticeable change in time, while other two order parameters remain practically constant. This is explained by our choice of the interatomic potential parameters, see Equation (19). Parameter D NiCr is smaller than D NiAl and D AlCr .…”

Section: Resultsmentioning

confidence: 99%

“…As it can be seen from Equation (19), for simplicity, we take equal values of the equilibrium distance R KL , which reflects the fact that we do not take into account atomic relaxation effects. The equilibrium distance is slightly (5%) greater than the interatomic distance, which is always so when long-range interactions are considered.…”

Section: Ternary Alloy Model and Simulation Setupmentioning

confidence: 99%

“…that makes them ideal for a number of applications in aerospace industry [13][14][15][16][17]. Structure and properties of Ni-base alloys can be improved by laser treatment [18,19] and thermomechanical treatment [20,21]. Electro-discharge machining process of Inconel-718 superalloy has been optimized in [22].…”

Section: Introductionmentioning

confidence: 99%

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Simulation of Diffusion Bonding of Different Heat Resistant Nickel-Base Alloys

et al. 2020

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Currently, an important fundamental problem of practical importance is the production of high-quality solid-phase compounds of various metals. This paper presents a theoretical model that allows one to study the diffusion process in nickel-base refractory alloys. As an example, a two-dimensional model of ternary alloy is considered to model diffusion bonding of the alloys with different compositions. The main idea is to divide the alloy components into three groups: (i) the base element Ni, (ii) the intermetallic forming elements Al and Ti and (iii) the alloying elements. This approach allows one to consider multi-component alloys as ternary alloys, which greatly simplifies the analysis. The calculations are carried out within the framework of the hard sphere model when describing interatomic interactions by pair potentials. The energy of any configuration of a given system is written in terms of order parameters and ordering energies. A vacancy diffusion model is described, which takes into account the gain/loss of potential energy due to a vacancy jump and temperature. Diffusion bonding of two dissimilar refractory alloys is modeled. The concentration profiles of the components and order parameters are analyzed at different times. The results obtained indicate that the ternary alloy model is efficient in modeling the diffusion bonding of dissimilar Ni-base refractory alloys.

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Section: Resultsmentioning

confidence: 99%

Section: Ternary Alloy Model and Simulation Setupmentioning

confidence: 99%

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Simulation of Diffusion Bonding of Different Heat Resistant Nickel-Base Alloys

et al. 2020

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“…The friction and wear processes taking place in the contact area of the sliding pairs depend on unit pressure between cooperating surface layers, microstructural changes of surface layer, chemical reactions between materials, material transformation and material properties variation in surface layers [ 33 , 37 , 38 ]. The wear of bearing alloy is mainly caused by the hard areas in the surface layer of the second material and hard wear particles, which leads to the interaction between the two surface layers and a more intense abrasion of the softer material [ 37 , 38 ]. Also, an increase in roughness of the harder material results in an increase in the wear particles detached from the softer material [ 33 ].…”

Section: Discussionmentioning

confidence: 99%

Experimental Analysis of Tribological Processes in Friction Pairs with Laser Borided Elements Lubricated with Engine Oils

et al. 2020

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The present study discusses the influence of engine oils on the tribological parameters of sliding couples with laser borided surface layer. The borided layer was formed on specimens made from AISI 5045 steel by laser remelting of a surface layer coated with amorphous boron. The sliding friction and wear process was carried out on the pairs with AISI 5045 steel and SAE-48 bearing alloys which were lubricated with 5W-40 and 15W-40 engine oils. The investigation showed significant differences in the friction coefficient and temperature in the tested pairs with the laser borided surface layer. In the couples lubricated with 5W-40 engine oil, the tested parameter of friction was higher than in the couples lubricated with 15W-40 engine oil. The couples lubricated with 5W-40 engine oil showed more intensive wear of SAE-48 bearing alloy in contact with the laser borided surface layer than the pairs lubricated with 15W-40 engine oil. The laser borided surface layer used in friction pairs leads to the destruction of the lubricating properties of engine oils and reduces its resistance to scuffing.

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“…Formation of new phases capable of transforming into tribo-films in sliding friction was reported for laser surface remelting applied to metallic materials (e.g., Inconel 600, equivalent to NiCr15Fe/2.4816) to locally alloy the substrate (B and CaF 2 ) [ 9 ]. Such treatment shows an anti-friction and anti-wear potential resulting from the presence of a solid lubrication film formed within the frictional contact zone.…”

Section: Introductionmentioning

confidence: 99%

Wear Resistance Enhancement of Al6061 Alloy Surface Layer by Laser Dispersed Carbide Powders

2020

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In this paper, results of the experimental study on improving wear resistance in sliding friction of Al-based alloy are presented. The technique used involves the formation of a metal matrix composite (MMC) in the alloy surface layer by laser dispersion of carbide powders such as WC, TiC and SiC. For WC and TiC MMC surface coatings fabricated under conditions typical for most of the technologically relevant solid-state lasers (wavelength range of 0.8–1.1 μm), the nearly inversely proportional dependence of the required laser energy density on the powder mass density is observed. Highly homogenous distribution of powder particle content (up to 40%) in the MMC surface coatings of a thickness between 0.8 and 1.6 mm obtained by multiple scanning is observed in the cross-section of specimens processed within a rather narrow parameter window. Tribological tests and comparison to untreated material reveal wear resistance increases by five- and ten-fold, observed in samples with laser-dispersed TiC and WC powders, respectively. Results indicate that substantial modification and reinforcement of the surface layer can be achieved in Al alloy in a one-step process without substrate preheating.

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Wear behavior of self-lubricating boride layers produced on Inconel 600-alloy by laser alloying

Cited by 30 publications

References 23 publications

Simulation of Diffusion Bonding of Different Heat Resistant Nickel-Base Alloys

Simulation of Diffusion Bonding of Different Heat Resistant Nickel-Base Alloys

Experimental Analysis of Tribological Processes in Friction Pairs with Laser Borided Elements Lubricated with Engine Oils

Wear Resistance Enhancement of Al6061 Alloy Surface Layer by Laser Dispersed Carbide Powders

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