Ultra-strong aluminum alloys for ambient and high-temperature applications

    公开(公告)号:US12104237B2

    公开(公告)日:2024-10-01

    申请号:US17670883

    申请日:2022-02-14

    CPC classification number: C22F1/04 B22D7/005 C22C1/026 C22C21/00

    Abstract: This invention discloses a series of low-cost, castable, weldable, brazeable and heat-treatable aluminum alloys based on modifications of aluminum-manganese-based alloys, which turn all the non-heat treatable Mn-containing aluminum alloys into heat treatable alloys with high-strength, ductility, thermal stability, and resistance to creep, coarsening and recrystallization. These alloys inherit the excellent corrosion resistance of the Al—Mn-based alloys and can be utilized in high temperature, high stress and a variety of other applications. The modifications are made through microalloying with one or any combinations of tin, indium, antimony and bismuth at an impurity level of less than 0.02 at. %, which creates nanoscale α-Al(Mn,TM)Si precipitates with a cubic structure (wherein TM is one or more of transition metals, and Mn is the main element) in an Al(f.c.c.)-matrix with a mean radius of about 25 nm and a relatively high volume fraction of about 2%.

    MODIFIED CAST METAL OBJECT
    2.
    发明公开

    公开(公告)号:US20240268391A1

    公开(公告)日:2024-08-15

    申请号:US18567913

    申请日:2022-06-09

    Abstract: The invention relates to a device, specifically a cast metal object, composed of one or more metals with an additive, such as an aluminate, silicate, or aluminosilicate, dispersed throughout. The additive may be a halloysite nanotube or kaolinite, and may be present in amounts between 0.1 to 10 wt. % relative to the object's total weight. The metal may vary, with options including copper, iron, steel, and their respective alloys. Additionally, a method for generating the cast metal object is provided. The method may provide for preparing a molten material with the metal and additive, pouring this into a casting mold, and cooling it to form the object. The resulting device may be utilized to decrease the transmission of diseases by reducing microbial contamination on touch surfaces. The method may applicable to communicable diseases resulting from viral or bacterial infections, such as coronaviruses or antibiotic-resistant bacteria.

    MACHINE FOR FORMING METAL BARS
    5.
    发明申请

    公开(公告)号:US20180147623A1

    公开(公告)日:2018-05-31

    申请号:US15882469

    申请日:2018-01-29

    Applicant: IKOI S.R.L.

    Inventor: Giovanni FAORO

    Abstract: A machine for forming metal bars, in particular for producing ingots made of precious metal such as gold, silver, precious alloys, as well as other pure metals or different alloys, in the form of solid metal powder, grits or swarf of various sizes, having an ingot mould and a cover for closing the ingot mould when filled, the ingot mould has a dimension in height such that the cover passes from a first position to a second position when the volume occupied by the mass of metal that fills the ingot mould reduces gradually up to one third of the initial solid volume. In the first position the cover rests on the metal that fills the ingot mold and remains raised with respect to an abutting edge of the ingot mould, in such a manner that the bottom of the cover compresses and thus uniformly compacts the powders, the grits or the swarf so that, during the melting step, in the second position, the cover lowers progressively as the metal melts, until it rests on the abutting edge of the ingot mold, thus hermetically closing the ingot mould.

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