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Friction surfacing is a solid state technique for depositing metallic coatings. Coating materials are thermo-mechanically processed at high temperatures during deposition. The high degree of deformation involved leads to a dynamically recrystallised fine grained microstructure. For Ti-6Al-4V, the microstructure and mechanical properties of coatings generated by friction surfacing have not been studied...
Future motor engine design and technology demand new materials that meet the requirements in terms of friction and wear properties. In order to reduce weight of the engine block and further more reduce the emissions thermal spray coatings are options to manufacture wear resistant and low-friction cylinder running surfaces.A motor cylinder with a thermally sprayed mild steel coating after a road test...
The good wear characteristics of thermal spray coatings are related to structural, productional, and topographical properties. Finally, the alteration of the microstructure in different contact zones is essential for mild wear conditions that will guarantee a long-life cycle because it reveals the ability of the material to adjust to the current load situation. Previous studies have shown that in...
Wear in modern tribological systems is characterized by ultra-low rates in the order of a few nanometers per hour. Even under low wear conditions, morphology, crystalline arrangement, and chemical bonds of surface and subsurface are modified significantly and considerable plastic deformation occurs up to 1 μm depth. We characterize these changes with the help of tribometer experiments employing the...
The main goal of the present investigation was to understand the acting wear mechanisms for a microtextured high-nitrogen stainless steel under self-mating sliding wear conditions. Therefore, the worn surface and subsurface was observed by means of scanning and transmission electron microscopy, respectively. It was shown that the alloying with nitrogen has a distinct effect on the dislocation movement...
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