Original scientific paper In this paper, the results of investigations of the temperature field distribution and tool wearing during C60 steel turning are presented. Abrasive wear resistance tests were carried out for cutters made of low-alloy high-speed steel. Steel samples were heat treated, and then were subjected to ion nitriding, TiN coating, or to complex treatment. The influence of cutti...

Duplex hardening is a process in which conventional heat-treatments such as secondary or case hardening are followed up by surface nitriding to achieve exceptional properties, particularly in the context of aeroengine bearings. Hardness values in excess of 1 000 HV can in principle be achieved, and although the hardness decreases as a function of depth below the surface, some level of enhanceme...

Plasma nitriding is a method of surface modification using glow discharge technology to introduce nitrogen into the metal, which subsequently diffuses material. The main advantages plasma over conventional processes are: reduced cycle time, controlled growth layer, elimination white distortion, no need finishing, pore-free surfaces and mechanical masks instead copper plating. process especially...

Abstract Surface nitriding has been widely used to improve the surface physicochemical properties of Ti alloys. However, currently utilized methods, such as laser nitriding, typically require expensive and complicated instruments, which makes a less cost-effective process. Meanwhile, antibacterial surface-nitrided alloy implants have not evaluated. Thereafter, in this study, we were aiming deve...

Unalloyed cast iron materials exhibit low tribological and corrosive resistance. In this respect, nitriding has a wide range of applications for steels. the case iron, advantageous properties nitrided layers are impaired by presence graphite. Electron beam remelting surfaces prior to removes The homogeneous ledeburitic microstructure within approx. 1 mm-thick remelted layer enables formation de...

In this paper, nitrogen diffusion is investigated in single-crystalline austenitic stainless steel during modified layer formation and thermal annealing. A generalized system of equations derived within a thermodynamic framework from Fick’s laws, which describe flux under multiple driving forces, including concentration gradient the hydrostatic stress. Trapping detrapping phenomena are consider...