Method for manufacturing a spark plug for a combustion engine, wherein the spark plug has at least two components which are joined by at least one welded joint which has been manufactured in a welding process, wherein for improving selected material properties of the welded joint a laser beam is directed to the welded joint and in that a powder which improves the selected material properties is introduced into the welded joint which is melted on its surface by the laser beam such that the powder melts and due to a connection of the melted powder with the melted aggregate structure of the surface of the welded joint a treated area with improved material properties results.

A method of manufacturing a valve body having one or more corrosion-resistant internal surfaces. The method involves performing a casting process, which includes pouring a first material into a mold box, to produce a valve body casting made of the first material. During the casting process, a layer of a second material is formed on one or more internal surfaces of the valve body casting, the second material having a higher corrosion resistance than the first material, by: (1) applying, with an additive manufacturing technique, the second material to one or more external surfaces of a core, and (2) inserting the core into the mold box. A portion of the first material binds to the second material on the one or more external surfaces of the core while the first material is poured into the mold box.

A method of manufacturing a valve body having one or more corrosion-resistant internal surfaces. The method involves performing a casting process, which includes pouring a first material into a mold box, to produce a valve body casting made of the first material. During the casting process, a layer of a second material is formed on one or more internal surfaces of the valve body casting, the second material having a higher corrosion resistance than the first material, by: (1) applying, with an additive manufacturing technique, the second material to one or more external surfaces of a core, and (2) inserting the core into the mold box. A portion of the first material binds to the second material on the one or more external surfaces of the core while the first material is poured into the mold box.

A dual wall liner for a gas turbine engine may comprise a shell having a first side and a second side, a panel contacting the shell, the panel at least partially defining a hot gas path through which a hot gas flows, wherein the first side of the shell faces the panel, wherein the shell includes a thermal barrier coating (TBC) disposed on the first side of the shell. The TBC may thermally protect the shell from heat from a hot gas path.

A part assembly (100), comprising: an aluminium part (101); a magnesium part (102), the magnesium part (102) coated in a first coating (104); a bond (103), the bond (103) securing the aluminium part (101) to the coated magnesium part (114); wherein the aluminium part (101), the coated magnesium part (114) and the bond (103) are subjected to an electrophoresis coating process to coat the aluminium part (101) in a second coating (105). By subjecting the aluminium part (101), the coated magnesium part (114) and the bond (103) to an electrophoresis coating process to coat the aluminium part (101) in a second coating (105) this may provide a simpler manufacturing process.

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.

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.

An embodiment relates to a cladded composite comprising a cladding layer of a bulk metallic glass and a substrate; wherein the bulk metallic glass comprises approximately 0% crystallinity, approximately 0% porosity, less than 50 MPa thermal stress, approximately 0% distortion, approximately 0 inch heat affected zone, approximately 0% dilution, and a strength of about 2,000-3,500 MPa.

An embodiment relates to a cladded composite comprising a cladding layer of a bulk metallic glass and a substrate; wherein the bulk metallic glass comprises approximately 0% crystallinity, approximately 0% porosity, less than 50 MPa thermal stress, approximately 0% distortion, approximately 0 inch heat affected zone, approximately 0% dilution, and a strength of about 2,000-3,500 MPa.

The present invention relates to a method for continuously manufacturing an abradable sealing element, this element comprising a support substrate covered by a coating comprising at least two successive layers, each comprising a sublayer of abradable material and a sublayer of erosion-control material. This method is noteworthy in that it comprises the steps consisting in: —a) placing at least one support substrate on a rotary carousel around which are placed at least two thermal spray torches enabling the sublayer of abradable material and that of erosion-control material to be deposited, —b) rotating the carousel so as to bring said support substrate successively opposite one then the other of the two torches and to carry out the deposition of the various sublayers and to repeat this operation so as to obtain said sealing element.