A lead-based alloy containing alloying additions of bismuth, antimony, arsenic, and tin is used for the production of doped leady oxides, lead-acid battery active materials, lead-acid battery electrodes, and lead-acid batteries.

A device for producing metal powder. This includes a melting chamber, a downstream atomization tower, and a nozzle assembly for atomizing a melt jet. The device further includes an induction coil disposed within the melting chamber and operated at a melting frequency f.sub.melt, the induction coil is adapted to locally melt a material rod at least section-wise received therein, to produce the melt jet to be atomized, and a separate intermediate coil disposed within the melting chamber and operated at a base frequency f.sub.base, wherein said intermediate coil is disposed downstream of the induction coil and aligned coaxially with the induction coil. The intermediate coil is configured to superheat the melt jet in a region between the induction coil and the nozzle assembly. The following applies to a frequency ratio F.sub.BS of the base frequency f.sub.base to the melting frequency f.sub.melt, 1F.sub.BS=f.sub.base/f.sub.melt500.

A device for producing metal powder. This includes a melting chamber, a downstream atomization tower, and a nozzle assembly for atomizing a melt jet. The device further includes an induction coil disposed within the melting chamber and operated at a melting frequency f.sub.melt, the induction coil is adapted to locally melt a material rod at least section-wise received therein, to produce the melt jet to be atomized, and a separate intermediate coil disposed within the melting chamber and operated at a base frequency f.sub.base, wherein said intermediate coil is disposed downstream of the induction coil and aligned coaxially with the induction coil. The intermediate coil is configured to superheat the melt jet in a region between the induction coil and the nozzle assembly. The following applies to a frequency ratio F.sub.BS of the base frequency f.sub.base to the melting frequency f.sub.melt, 1F.sub.BS=f.sub.base/f.sub.melt500.

A spherical powder for manufacturing a three-dimensional component. The spherical powder is an alloy powder which has at least two refractory metals. The alloy powder has a homogeneous microstructure and at least two crystalline phases.

The present disclosure provides methods for preparing magnetostrictive powder and magnetostrictive coating, and relates to the field of magnetic functional materials and preparation thereof. The method for preparing magnetostrictive powder includes putting metals for preparing magnetostrictive powder into a vacuum melting furnace to be melted into a solution; and atomizing the solution into fine droplets by ultrasonic atomization, so that the fine droplets are cooled and solidified into magnetostrictive powder. In the method for preparing magnetostrictive powder according to the embodiments of the present disclosure, the sizes of the prepared powder are relatively uniform, the powder yield exceeds 90%, the ultrasonic atomization energy consumption is low, and energy is saved by about compared with conventional atomization.

The present disclosure provides methods for preparing magnetostrictive powder and magnetostrictive coating, and relates to the field of magnetic functional materials and preparation thereof. The method for preparing magnetostrictive powder includes putting metals for preparing magnetostrictive powder into a vacuum melting furnace to be melted into a solution; and atomizing the solution into fine droplets by ultrasonic atomization, so that the fine droplets are cooled and solidified into magnetostrictive powder. In the method for preparing magnetostrictive powder according to the embodiments of the present disclosure, the sizes of the prepared powder are relatively uniform, the powder yield exceeds 90%, the ultrasonic atomization energy consumption is low, and energy is saved by about compared with conventional atomization.

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 titanium-free cobalt-chromium alloy for a powder, contains (in wt. %) C 0.40-1.50%, Cr 24.0-32.0%, W 3.0-8.0%, Mo 0.1-5.0%, where 4.0<W+Mo<9.5 is satisfied by the content of W and Mo in wt. %, Nb max. 0.5%, Ta max. 0.5%, where Nb+Ta<0.8 is satisfied by the content of Nb and Ta in wt. %, Ni 0.005-25.0%, Fe 0.005-15.0%, where Ni+Fe>3.0 is satisfied by the content of Ni and Fe in wt. %, Mn 0.005-5.0%, Al max. 0.5%, N 0.0005-0.15%, Si<0.3%, Cu max. 0.4%, O 0.0001-0.1%, P max. 0.015%, B max. 0.015%, S max. 0.015%, residual Co, and impurities resulting from the production process, in particular Zr max. 0.03% and Ti max. 0.025%.

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 lead-based alloy containing alloying additions of bismuth, antimony, arsenic, and tin is used for the production of doped leady oxides, lead-acid battery active materials, lead-acid battery electrodes, and lead-acid batteries.