The present disclosure belongs to the field of preparation of high-performance alloy materials, and specifically relates to a plastic CoCrNi-based medium-entropy alloy with 2.0 GPa-level ultra-high yield strength and a preparation method thereof. The alloy is prepared by melting and casting, homogenization treatment, solution heat treatment, cold deformation and aging heat treatment. After cold deformation and aging heat treatment, the prepared alloy has a dual heterogeneous microstructure due to the discontinuous precipitation of the strengthening phase and the incomplete recrystallization composition. The CoCrNi-based medium-entropy alloy of the present disclosure has ultra-high yield strength (2.0 GPa) and sufficient safety in use (uniform elongation of more than 8%), which can be processed into various forms of products, and has a wide range of applications in the production of fasteners used in the fields of aerospace, navigation, oil and gas, food processing, springs, non-magnetic components, and instrument parts.

A tribological and creep resistant system configured to operate at temperatures in excess of 700° C. A seal body extends between a leading edge and a trailing edge. A first component contact surface is adjacent the leading edge and a second component contact surface is adjacent the trailing edge. The seal body is formed from a high entropy alloy.

A composite structure with an aluminum-based alloy layer containing boron carbide and a manufacturing method thereof are provided. The composite structure includes a substrate with an open hole in that surface and the aluminum-based alloy layer containing boron carbide. The aluminum-based alloy layer is disposed in the open hole and contains aluminum, boron, carbon, and oxygen, wherein the content of aluminum is between 4 at. % and 55 at. %, the content of boron is between 9 at. % and 32 at. %, the content of carbon is between 13 at. % and 32 at. %, the content of oxygen is between 2 at. % and 38 at. %, and the ratio of the content of boron to carbon is between 0.3 and 2.7.

A composite structure with an aluminum-based alloy layer containing boron carbide and a manufacturing method thereof are provided. The composite structure includes a substrate with an open hole in that surface and the aluminum-based alloy layer containing boron carbide. The aluminum-based alloy layer is disposed in the open hole and contains aluminum, boron, carbon, and oxygen, wherein the content of aluminum is between 4 at. % and 55 at. %, the content of boron is between 9 at. % and 32 at. %, the content of carbon is between 13 at. % and 32 at. %, the content of oxygen is between 2 at. % and 38 at. %, and the ratio of the content of boron to carbon is between 0.3 and 2.7.

Provided is a copper-manganese-nickel based alloy having characteristics (in particular, specific resistance) close to those of a nickel-chromium based alloy. It is also an objective to provide an alloy having high processability compared to a nickel-chromium based alloy. An alloy for a resistive body includes copper, manganese, and nickel, wherein the manganese is 33 to 38% by mass, and the nickel is 8 to 15% by mass.

Differing from traditional alloys often containing one primary elemental composition, the present invention reforms a conventional superalloy to a high-entropy superalloy by redesigning the elemental compositions of the conventional superalloy based on a mixing entropy formula. Particularly, this high-entropy superalloy shows advantages of light weight and low cost under the premise of containing a low amount of expensive metal composition. The proposed high-entropy superalloy of the present invention comprises a primary elemental composition and at least one principal strengthening elemental composition, wherein the primary elemental composition has a first element content of at least 35 at % and each of the principal strengthening elemental compositions have a second element content of over 5 at %. Moreover, a variety of experimental results have proved that the high-entropy superalloy simultaneously possesses a variety of excellent high-temperature mechanical properties, such as high mechanical strength, high corrosion resistance, high oxidation resistance, and high creep resistance.

Differing from traditional alloys often containing one primary elemental composition, the present invention reforms a conventional superalloy to a high-entropy superalloy by redesigning the elemental compositions of the conventional superalloy based on a mixing entropy formula. Particularly, this high-entropy superalloy shows advantages of light weight and low cost under the premise of containing a low amount of expensive metal composition. The proposed high-entropy superalloy of the present invention comprises a primary elemental composition and at least one principal strengthening elemental composition, wherein the primary elemental composition has a first element content of at least 35 at % and each of the principal strengthening elemental compositions have a second element content of over 5 at %. Moreover, a variety of experimental results have proved that the high-entropy superalloy simultaneously possesses a variety of excellent high-temperature mechanical properties, such as high mechanical strength, high corrosion resistance, high oxidation resistance, and high creep resistance.

Alloy composition for the manufacture of protective coatings, comprising cobalt, nickel, chromium, aluminum, yttrium and iridium in amounts so as to obtain the phases α, β and σ, in particular for coating a super-alloy article. Preferably, such super-alloy article is a turbine component.

Alloy composition for the manufacture of protective coatings, comprising cobalt, nickel, chromium, aluminum, yttrium and iridium in amounts so as to obtain the phases α, β and σ, in particular for coating a super-alloy article. Preferably, such super-alloy article is a turbine component.

The present disclosure relates to an electrode for measuring an analyte. The electrode includes a first base layer, a first electrode layer upon the first base layer, and a second base layer. The first electrode layer is arranged between the first base layer and the second base layer. The first base layer includes a conductive metal, a conductive metal alloy, or carbon. The first electrode layer includes ruthenium metal, a ruthenium based metal alloy, nickel metal, or a nickel based metal alloy. The first base layer is made of different elements than the first electrode layer. The first base layer is more conductive than the first electrode layer.