Nitriding is a technology that leads to an increase in the utility value of product. It’s most im-portant benefits include increased corrosion resistance, abrasion wear resistance fatigue failure under cyclic loading, and many others. The design suitable nitriding not only on basis empirics requires closer study relationship between structure layer, its properties course particular degrad...

Castings of aluminum and plastics are of high importance in the industrial world. They are usually made using permanent metallic moulds for pressure die-castings and injection molding. Die-tools are usually produced from chromium maraging hot work tool steel and are heat treated to hardness between 29 and 48 HRC, 1-3 . Die life is a mayor factor of a die-casting process and it strongly affects ...

AISI 304 stainless steel is a type of austenitic that contains high percentage chromium and nickel. It one the most widely used grades commonly in variety applications, including kitchen equipment, food processing chemical equipment. versatile material due to its excellent corrosion resistance, durability, non-magnetic properties. Low-temperature processes like ion implantation, plasma nitridin...

The combined treatment of pressurized gas nitriding and cold rolling is proposed as a new approach to rapid preparation of a strong and tough nitrided layer for steel 38CrMoAlA. The microstructural characteristics and properties of the modified surface layer in comparison with those of the conventionally gas nitrided sample have systematically been evaluated. The results show that the hardness ...

Abstract The load carrying capacity of gears can be significantly increased by nitriding. However, the required nitriding hardening depth depends on stress level and gear size. In order to achive a high fatigue resistance durability nitrided an adequate is necessary. industrial practice, (NHD) about 0.6 mm currently regarded as upper limit that reached within reasonable time cost. This also lim...

This paper presents the results of multi-aspect surface characterization X39Cr13 steel samples subjected to technological processes specific medical instrumentation, such as heat and thermochemical treatment, well sterilization, which are implemented in corrosion resistance measurements. The application numerical methods fractal analysis averaged profiles obtained from SEM images resulted doubl...

The plasma nitriding conditions and processing parameters were controlled to attain the high-density nitrogen ion NH-radical populations form supersaturated layer into AISI420 type martensitic stainless steel mold substrate at 673 K for 14.4 ks 28.8 ks. Thicker nitrided than 80 mm was attained fine machining of optical diffraction elements onto this surface. average hardness in reached 1400 HV....