A nickel base superalloy powder for additive manufacturing applications is disclosed. The alloy powder has the following broad weight percent composition:

TABLE-US-00001 C   0-0.1 Mn 0.5 max. Si   0-0.03 Cr  4-16 Fe   0-1.5 Mo 0-6 W 0-8 Co  0-15 Ti 0-2 Al 0.5-5.5 Nb 0-6 Ta  7.5-14.5 Hf   0-2.0 Zr   0-0.1 Re 0-6 Ru 0-3 B   0-0.03
The balance of the alloy is at least 50% nickel and the usual impurities. An article of manufacture made from the alloy is also disclosed.

The present invention relates to a method for manufacturing composite solder balls that are metallized on the surface and calibrated, these balls comprising a core consisting of a spherical support particle of diameter Do made of expanded polystyrene and having an intergranular porosity of at least 50%, and a shell covering said support particle and formed by a plurality of metallic surface layers. The present invention also relates to balls that can be obtained by the method according to the invention, as well as to the use thereof for the assembly of electronic boards.

In a film formation step of a brazing method, a metal brush formed by bundling a plurality of metal wires is brought into contact with a film formation target portion of a workpiece. Here, the film formation target portion is a portion that includes a joining target portion and a brazing-material-allowed portion but does not include an avoidance portion. In this state, the film formation target portion and the metal brush are relatively moved to each other. Thus, the metal film is formed on the film formation target portion. In a brazing step, the joining target portions are joined in a state where a brazing material is arranged on the joining target portion and the brazing-material-allowed portion.

Alloy with the composition (in wt. %) Ni 33.5-35.0%, Cr 26.0-28.0%, Mo 6.0-7.0%, Fe<33.5%, Mn 1.0-4.0%, Si<0.1%, Cu 0.5-1.5%, Al 0.01%-0.3%, C<0.01%, P<0.015%, S<0.01%, N 0.1-0.25%, B 0.001-0.004%, Se>0-1.0%, if required W<0.2%, Co<0.5%, Nb<0.2%, Ti<0.1%, and impurities from the melting process, is used as a welding-plating material in the area of thermal processing systems, in particular rubbish, biomass, sewage sludge and substitute fuel systems, wherein, after the build-up welding, in the operationally stressed state in a fully austenitic structural matrix, the welding-plating material forms a sigma phase and other hard particles in the weld material microstructure in a targeted manner.

A layer structure includes a first layer including at least one material selected from a first group consisting of nickel, copper, gold, silver, palladium, tin, zinc, platinum, and an alloy of any of these materials; a third layer including at least one material selected from a second group consisting of nickel, copper, gold, palladium, tin, silver, zinc, platinum, and an alloy of any of these materials; and a second layer between the first layer and the third layer. The second layer consists of or essentially consists of nickel and tin. The second layer includes an intermetallic phase of nickel and tin.

Provided is an austenitic stainless steel weld joint that is excellent in polythionic acid SCC resistance and naphthenic acid corrosion resistance, and is also excellent in creep ductility. An austenitic stainless steel weld joint includes a base material and a weld metal. The weld metal has a chemical composition at its width-center position and at its thickness-center position consisting of, in mass %, C: 0.050% or less, Si: 0.01 to 1.00%, Mn: 0.01 to 3.00%, P: 0.030% or less, S: 0.015% or less, Cr: 15.0 to 25.0%, Ni: 20.0 to 70.0%, Mo: 1.30 to 10.00%, Nb: 0.05 to 3.00%, N: 0.150% or less, and B: 0.0050% or less, with the balance: Fe and impurities.

A system for creating a braze joint within a component. The system includes an environment operable to reach a braze temperature sufficient to melt at least a portion of a braze material. The system also includes a component within the environment, the component including a base having a base surface, a recess depending from the base surface into the base to an inner edge, and a braze material within the recess and forming a cap above the base surface. The braze material fills the recess from the cap to the inner edge. The cap has an exposed braze surface. The system also includes an insulation layer that at least partially covers the exposed braze surface.

A method includes applying a material coating to a surface of a machine component, wherein the material coating is formed from a combination of a hardfacing material, aluminum-containing particles, and a braze material. The method also includes thermally treating the material coating at a temperature to generate an oxide layer comprising aluminum from the aluminum-containing particles, wherein the oxide layer is configured to reduce oxidation of the hardfacing material, and the braze material is configured to facilitate binding between the material coating and the surface of the machine component.

Provided is a preform solder including a first metal containing Sn and a second metal formed of an alloy containing Ni and Fe. Alternatively, provided is a preform solder (1) having a metal structure including a first phase (10) that is a continuous phase and a second phase (20) dispersed in the first phase (10), the first phase (10) contains Sn, the second phase (20) is formed of an alloy containing Ni and Fe, and a grain boundary (15) of a metal is present in the first phase (10).

Provided is a preform solder including a first metal containing Sn and a second metal formed of an alloy containing Ni and Fe. Alternatively, provided is a preform solder (1) having a metal structure including a first phase (10) that is a continuous phase and a second phase (20) dispersed in the first phase (10), the first phase (10) contains Sn, the second phase (20) is formed of an alloy containing Ni and Fe, and a grain boundary (15) of a metal is present in the first phase (10).