A Y-shaped refractory anchor, a plurality of Y-shaped refractory anchors, and a method of installing a plurality of Y-shaped refractory anchors in a hexagonal pattern is disclosed. The Y-shaped refractory anchor comprises a singular folded metal plate comprising a stem that comprises at least one triangular section to be welded to a backing surface and a folded stem base and a branch section comprising two branches, wherein the singular metal plate is folded together at the stem base, such that the stem of the Y-shaped anchor is twice as thick as the two individual branches.

The present disclosure is directed at alloys and method for layer-by-layer deposition of metallic alloys on a substrate to produce a metallic part. Applications for the metallic parts include pumps, pump parts, valves, molds, bearings, cutting tools, filters or screens.

A method of manufacturing a high-pressure fluid vessel includes forming a first portion of a high-pressure fluid vessel with a molding process. The high-pressure fluid vessel includes a stack of capsules. Each capsule includes a first domed end, a second domed end, and a semicylindrical portion extending between and connecting the first domed end to the second domed end. The method further includes forming a second portion of a high-pressure fluid vessel with the molding process. The second portion of the high-pressure fluid vessel is positioned adjacent to the first portion of the high-pressure fluid vessel. The second portion of the high-pressure fluid vessel is welded to the first portion of the high-pressure fluid vessel.

A method of forming a sealed canister and a method of storing radioactive materials is provided. The method of forming includes placing a top plate on a top opening of a side wall, a bottom of the side wall being sealed to a base plate. The top plate includes a top surface with a top edge having a bevel and with a channel set in from the top edge. Finally, a weld is formed between the beveled top edge and the top opening of the side wall to seal the top plate to the side wall.

A container and system for handling damaged nuclear fuel, and a method of making the same. In one embodiment, the invention is a damaged fuel container having a specially designed top cap that can be detachably coupled to the elongated tubular wall by simply translating the top cap into proper position within the elongated tubular wall, wherein biased locking elements automatically lock the top cap to the elongated tubular wall. In another embodiment, the vent screens of the damaged fuel container are integrally formed rather than being separate components. In still other embodiments, the lower vent screens are arranged on an upstanding portion of the damaged fuel container. In an even further embodiment, the elongated tubular wall is formed by an extrusion process.

Some examples include welding a first workpiece to a second workpiece. For instance, the first workpiece may be secured adjacent to the second workpiece. At least one of the first workpiece or the second workpiece includes a channel or a portion of a channel in a respective surface such that a complete channel is presented when the first workpiece and the second workpiece are secured adjacent to each other. A rotating tip of a welding tool is inserted into the complete channel for welding the first workpiece to the second workpiece. A surface burr resulting from the welding is located within the complete channel.

A Ni-based alloy wire for submerged arc welding according to an aspect of the present invention includes, as a chemical composition, by mass %, C: 0.001% to 0.060%, Si: 0.01% to 3.00%, Mn: 0.01% to 6.00%, Mo: 15.0% to 25.0%, W: 2.5% to 10.0%, Ta: 0.002% to 0.100%, Ni: 65.0% to 82.4%, Al: 0% to 2.00%, Ti: 0% to 2.00%, Cu: 0% to 1.0%, P: 0% to 0.0200%, S: 0% to 0.0200%, N: 0% to 0.1000%, 0: 0% to 0.0100%, Fe: 0% to 10.0000%, Co: 0% to 0.1000%, Cr: 0% to 1.0000%, V: 0% to 0.1000%, Nb: 0% to 0.1000%, B: 0% to 0.0100%, Bi: 0% to 0.0100%, Ca: 0% to 0.0200%, REM: 0% to 0.0300%, Zr: 0% to 0.1000%, and a remainder: impurities; in which a value X is 0.010% to 0.180%.

A pressure vessel includes: (a) a cylindrical sidewall having a wall thickness, an inside surface, an outside surface, and the cylindrical sidewall extending between a first end and a second end, wherein one of the first end or the second end includes a sidewall edge that forms part of an outwardly opening weld groove; (b) an end cap constructed to engage the cylindrical sidewall edge, the end cap comprising an end cap edge corresponding to the sidewall edge and that, when combined with the sidewall edge, forms the outwardly opening weld groove; (c) a cylindrically extending backer bar located in support of the outwardly opening weld groove formed by the sidewall edge and the end cap edge; and (d) a weld joint formed in the outwardly opening weld groove and holding the cylindrical sidewall to the end cap. A method for welding a pressure vessel sidewall and end cap together is provided.

A container and system for handling damaged nuclear fuel, and a method of making the same. In one embodiment, the invention is a damaged fuel container having a specially designed top cap that can be detachably coupled to the elongated tubular wall by simply translating the top cap into proper position within the elongated tubular wall, wherein biased locking elements automatically lock the top cap to the elongated tubular wall. In another embodiment, the vent screens of the damaged fuel container are integrally formed rather than being separate components. In still other embodiments, the lower vent screens are arranged on an upstanding portion of the damaged fuel container. In an even further embodiment, the elongated tubular wall is formed by an extrusion process.

The present invention is directed to friction stir welding, and in particular to apparatuses, methods, and systems using friction stir welding to join one or more components comprising an aluminum 2xxx alloy with one or more components comprising an aluminum 7xxx alloy. The aluminum 2xxx alloy may be in the form of a filler insert, for example a sheet or strip, between two larger aluminum 7xxx alloy components, or the aluminum 2xxx alloy may be in the form of a larger component welded directly to an aluminum 7xxx alloy component of comparable size. Weldments according to the present invention have improved resistance to stress corrosion cracking without the need for post-weld artificial aging and are useful in many applications, for example in construction of spacecraft parts.