Hot corrosions of laser-cladded inconel 625 in molten salt Na2SO4-MgSO4 mixture have been studied at 900 °C to address its anticorrosion behaviors. Elemental and microstructural characterizations provide direct evidence for the formation MgO/Cr2O3 external layers outward-diffusion Cr atoms. The Cr-depletion promotes precipitation δ-Ni3(Nb/Mo), nucleation accumulation dislocations, pores, intern...

The following article examines the influence of glass-crystalline bond in grinding wheels with grains made from microcrystalline aluminum oxide, and specifically its effect upon the values of selected operational indicators in the process of traverse internal cylindrical grinding of surfaces made from Inconel® alloy 600. The experimental test results obtained showed that changes in the bond pha...

This work investigated the lubricating and anti-wear properties of several sulfur additives for a nickel-based superalloy–tungsten carbide friction pair. Compared with PAO40 without any active chemical compounds, three kinds could decrease coefficient from 0.2 to 0.1 wear volume by 90%. Sulfurized fatty acid ester had best performance under high temperature heavy load COF below smallest volume....

Johnson–Cook (J-C) material model is often used for Finite Element (FE) modeling of cutting processes and it affects significantly the results of simulation. Since experimentally determination of J-C equation parameters is an expensive and time-consuming task, in this paper, a new and efficient methodology was implemented based on the evolutionary optimization algorithm to identify new J-C mate...

The main functions of thin-walled structures—widely used in several industries—are to reduce the weight finished product and increase rigidity structure. A popular method for machining such components, often with complex shapes, is using milling. However, milling involves undesirable phenomena. One them occurrence vibrations caused by operation moving parts. Vibrations strongly affect surface q...

Additive manufacturing (AM) by laser powder bed fusion (LPBF) has gained significant research attention to fabricate complex 3D Inconel alloy components for jet engines. The strategic advantages of LPBF-based AM aerospace applications are well reported. exposed a high degree vibration during the operation in variable aqueous environment. combined and environment create tribological condition th...

Nickel-based alloys are widely used in the aerospace industry, nuclear reactors and automotive industry. These exhibit excellent physical chemical properties at high temperatures. However, nickel-based difficult to machine materials with hardness low thermal conductivity, which results cutting forces during machining. Additionally, increasing demand for meso-scale components industry has opened...