Poppet valve, plate valve, with a longitudinal axis (L), with a valve seat having a plurality of valve seat passage channels, with a catcher arranged at a distance from the valve seat in the direction of the longitudinal axis (L), and with a sealing element arranged movably between the valve seat and the catcher for opening and closing the valve seat passage channels. One of the valve components formed as the valve seat or the catcher having a plurality of passage channel limiting sections and a plurality of web portions, each extending mutually at an angle (α), wherein at least one of the valve components formed as valve seat or catcher is produced at least in sections by additive manufacturing, and wherein at least one of the passage channel limiting sections is dimensioned shorter in the direction of the longitudinal axis (L).

In an embodiment, an article comprises a plurality of structural units, wherein each structural unit comprises a first portion; a second portion; wherein the second portion contacts the first portion; and a third portion; wherein the third portion is in communication with the first portion and the second portion and is more compressible than the first portion and the second portion; wherein the first portion comprises a first shape memory alloy having a first preset state and wherein the second portion comprises a second shape memory alloy that has a second preset state; wherein the second preset state is different from the first preset state.

The invention relates to a method for assembling a first metal part with a second part made of an organic matrix composite material, the first part having a first connecting portion and the second part having a second connecting portion, the method comprising the steps of: causing the first connecting portion and the second connecting portion to overlap, a through-hole of the second connecting portion opening onto the first connecting portion, forming a protective layer on the side wall of the through-hole, forming a seal between the protective layer and the first connecting portion, and forming, by additive manufacturing using cold gas spray deposition of metal powder, a fastening element which extends into the through-hole, is fastened to the first connecting portion and encloses the second connecting portion.

Piece comprising a first metal part and a second part in organic matrix composite material, wherein the first part has a first connecting portion and the second part has a second connecting portion, the second connecting portion having at least one through-hole, the second connecting portion being totally or partially sandwiched between the first connecting portion and a metal fastening element, the fastening element being fastened on the first part both onto the first connecting portion via the through-hole of the second connecting portion and onto a portion other than the first connecting portion, whereby the first part and the second part are fastened to each other.

The invention relates to a piece comprising a first metal part and a second part made of an organic matrix composite material, in which the first part has a first connecting portion and the second part has a second connecting portion, the second connecting portion having at least one blind hole, the second connecting portion being totally or partially sandwiched between the first connecting portion and a metal fastening element, the fastening element being fastened to the first part on a portion other than the first connecting portion and extending into the at least one blind hole, whereby the first part and the second part are fastened to one another.

An iron-base sintered alloy material includes a matrix phase, Co base inter-metallic compound particles having hardness of 600 to 1200 HV, carbide-type particles having hardness of 400 to 700 HV, and optionally solid-lubricant particles, the particles being dispersed in the matrix phase. A matrix part including the matrix phase and the two kinds of hard-particles contains 0.3 to 1.5% by mass of C, and 10 to 50% by mass of one or more kinds selected from Si, Mo, Cr, Ni, Co, Mn, S, N, V, Ca, F, Mg, and O, the balance being Fe and unavoidable impurities. By dispersing, in the matrix phase, the Co base inter-metallic compound particles having high hardness, and the carbide-type particles having low hardness and low aggressiveness to mated material and increasing mechanical strength, wear-resistance can be improved with low aggressiveness to mated material and high radial crushing strength (350 MPa or more).

Components made of a metal matrix composite and methods for the manufacture thereof. The metal matrix composite contains TiB.sub.2 particles, Al.sub.3Ti particles, and particles of an intermetallic compound of aluminum and at least one rare earth element dispersed in an aluminum matrix. Methods include casting a first melt to produce an ingot, remelting the ingot to form a second melt, forming a powder from the second melt using an atomization process, and fabricating a component utilizing the powder in an additive manufacturing process. The ingot and the powder include an aluminum matrix that contains dispersions of TiB.sub.2 particles and Al.sub.3Ti particles.

Components made of a metal matrix composite and methods for the manufacture thereof. The metal matrix composite contains TiB.sub.2 particles, Al.sub.3Ti particles, and particles of an intermetallic compound of aluminum and at least one rare earth element dispersed in an aluminum matrix. Methods include casting a first melt to produce an ingot, remelting the ingot to form a second melt, forming a powder from the second melt using an atomization process, and fabricating a component utilizing the powder in an additive manufacturing process. The ingot and the powder include an aluminum matrix that contains dispersions of TiB.sub.2 particles and Al.sub.3Ti particles.

Provided are a heat-resistant member provided with a heat-shielding coating suitable for stable manufacturing and excellent in heat-insulating, thermoresponsive and distortion accommodating properties, and a method for manufacturing the same. The heat-shielding coating includes a metallic portion formed of agglomerates of a plurality of metal particles, and inorganic compound particles dispersed in the metallic portion. The metal particles are diffusion-bonded each other, and the metallic portion and a base material of the heat-resistant member are diffusion-bonded each other. The manufacturing method includes the steps of depositing mixed particles of the metal particles and the inorganic compound particles on a surface of the base material in a film shape; resistance-heating the mixed particles by current-passing while pressurized in a thickness direction; diffusion-bonding the metal particles each other; and the metallic portion and the base material each other.

Methods for manufacturing components that include casting a first melt to produce an ingot, remelting the ingot to form a second melt, forming a powder from the second melt using an atomization process, and fabricating a component utilizing the powder in an additive manufacturing process. The ingot and the powder include an aluminum matrix that contains dispersions of TiB.sub.2 particles and Al.sub.3Ti particles and the component is a metal matrix composite having an aluminum matrix that contains dispersions of TiB.sub.2 particles and Al.sub.3Ti particles. Optionally, the metal matrix composite may include particles of an intermetallic compound of aluminum and at least one alloying element.