Hypereutectic High Chromium Cast Iron (HHCCI) is a new type of corrosion-wear-resistant material developed from ordinary high chromium cast iron by increasing the and carbon content often used in abrasive environments where wear corrosion interact. The resistance HHCCI related to number, size, shape distribution carbides microstructure matrix. This paper reviews research progress improving vari...

as the turbine industries need to manufacture turbine blades made of martensitic stainless steel aisi 420 with high toughness and wear resistance, local laser hardening has become more and more important. in this research, surface of the samples was initially hardened by high-power pulsed laser beam; then, optimum parameters of hardening were calculated and wear resistance of surface hardened s...

The influence of contact stresses on the phase and concentration composition thin surface layers wear products in tribological zone high-nitrogen FeMn22Cr18N0.83 steel was studied using Mössbauer spectroscopy, X-ray structural analysis, electron microscopy. It shown that compressive developing under conditions dry sliding friction (20–25 microns) resulted strain-induced dissolution cellular pre...

M. Sedlaček, B. Podgornik, Institute of Metals and Technology, Ljubljana, Slovenia, D. Česnik, Hidria Rotomatika d.o.o, Spodnja Idrija, Slovenia The aim of this work was to determine the impact of various heat treatments on the KIc/HRc ratio and subsequently on the wear properties of coated high-speed steel under dynamic impact loading. The results showed that hardness and improvement in the fr...

BACKGROUND Adverse Reaction to Metal Debris (ARMD) is still a major reason for revision surgeries in patients with metal-on-metal (MoM) hip replacements. ARMD consists of a wide range of alterations in periprosthetic tissues, most important of which are metallosis, inflammation, pseudotumors and necrosis. Studies investigating histopathological findings and their association to implant wear or ...

High-entropy alloy films have the same excellent properties as high-entropy alloys and can better realize practical applications of alloys. This paper takes object discussion. The preparation process, microstructure, hardness, wear resistance corrosion are mainly discussed influence nitridation, sputtering power, substrate temperature, bias other factors on phase structure is analyzed. be prepa...

The aim of the present work is to study the effect of annealing on the vibration damping capacity of high-chromium (16%) ferromagnetic steel. The alloys were prepared from raw materials of 99.9% purity melted in a high frequency induction furnace under high vacuum. The samples were heat-treated in vacuum at various temperatures (800 to 1200oC) for 1 hour followed by slow cooling (120oC/h). The ...

Friction surfacing is an emerging surface engineering technology, developed on the basic principle of friction welding, for depositing wear and corrosion resistant metallic coatings. In the present work coating of tool steel M2 were made on mild steel by friction surfacing by using 2 factorial designs with 3 factors at two levels for each. Process parameters developed a satisfactory deposition ...