In some embodiments, a coating applied to steel reinforcement bar (e.g., steel rebar) that could considerably extend the lifetime of concrete structures by reducing steel rebar corrosion is disclosed. The coating includes a thin, passivating steel (e.g., stainless steel) layer that is applied to the outside of conventional steel rebar. The coating can be applied in-line through metal cold spray manufacturing, which is a high throughput coating technique that can be integrated into existing steel manufacturing plants. Furthermore, a novel, high performance ferritic steel with tailored resistance to corrosion from chlorides is described. The new ferritic steel is distinct from other commercial and experimental steels, and is better suited for coating low-cost steel structures like rebar. Multiple alloying elements including Cr, Al, and Si will each form protective oxides independently, increasing the total amount of protection and extending it over much wider ranges of pH and electrical potential.

A system for spraying a coating material to a substrate includes an optical sensor that monitors a thickness, a controller that generates a first signal corresponding to an amount of gas propellant to be heated, a second signal corresponding to a temperature to which the gas propellant is to be heated, a third signal corresponding to an amount of a solid powder composition to be mixed with the heated gas, and a fourth signal corresponding to a distance between the nozzle and the substrate, a first regulator that supplies an amount of gas propellant corresponding to the first signal, a heater that heats the gas propellant to the temperature corresponding to the second signal, a second regulator that supplies an amount of solid powder composition corresponding to the third signal, and an actuator that moves the nozzle corresponding to the fourth signal.

A process for manufacturing an abradable layer, includes compressing a powder composition including at least micrometric ceramic particles having a number-average form factor greater than or equal to 3, a mass content of said micrometric ceramic particles in the powder composition being greater than or equal to 85%, the form factor of a particle being defined as the ratio [largest dimension of the particle]/[largest cross-sectional dimension of the particle], and sintering the powder composition thus compressed to obtain the abradable layer, wherein a temperature imposed during sintering, the sintering time and the compression pressure applied are selected so as to obtain a volume porosity rate of the abradable layer greater than or equal to 20%.

In some embodiments, a coating applied to steel reinforcement bar (e.g., steel rebar) that could considerably extend the lifetime of concrete structures by reducing steel rebar corrosion is disclosed. The coating includes a thin, passivating steel (e.g., stainless steel) layer that is applied to the outside of conventional steel rebar. The coating can be applied in-line through metal cold spray manufacturing, which is a high throughput coating technique that can be integrated into existing steel manufacturing plants. Furthermore, a novel, high performance ferritic steel with tailored resistance to corrosion from chlorides is described. The new ferritic steel is distinct from other commercial and experimental steels, and is better suited for coating low-cost steel structures like rebar. Multiple alloying elements including Cr, Al, and Si will each form protective oxides independently, increasing the total amount of protection and extending it over much wider ranges of pH and electrical potential.

A method is disclosed for producing a friction brake body, in particular a brake disc, which has a main part with a frictional contact region. A wear protection layer is produced on the frictional contact region by way of laser cladding using a laser beam oriented towards the frictional contact region. The wear protection layer is produced by at least one pulverulent additive during the laser cladding. At least two pulverulent additives are added simultaneously such that the dwell time thereof in the laser beam differs.

The present disclosure relates to a stainless steel product comprising a stainless steel sheet. On a surface of the stainless steel sheet an adhesion promoter is applied. The adhesion promoter comprises a CoCr and/or NiCr alloy, wherein and on the adhesion promoter an enamel coating is applied. The present disclosure also relates to a magnetic-inductive flow meter, to a field device and to a method for producing a stainless steel product.

A sliding member includes at least one surface having a particle aggregate of base material particles and hard particles. The hard particles are iron-based alloy particles containing molybdenum silicide in an amount of 35% to 90% by area. The sliding member has a wear resistance equivalent to that of a sliding member that uses cobalt-based hard particles.

A coating composition for carbon steel includes a titanium dioxide hindered amine light stabilizer (TiO.sub.2-HALs) nanocomposite and an epoxy resin. The TiO.sub.2-HALs nanocomposite is present in the coating composition in an amount 1 to 10 wt. % based on the weight of the coating composition. The TiO.sub.2-HALs nanocomposite includes a homogenous distribution of TiO.sub.2 nanoparticles in a HALs matrix. A method of producing the coating includes synthesizing the TiO.sub.2/HALs nanocomposite, mixing the epoxy resin, and the TiO.sub.2/HALs nanocomposite for 6 to 10 h at a temperature of 25 to 75 C.