A forming powder for a forming part with a low high-temperature durability anisotropy by additive manufacturing, which can be used for forming the forming part with low high-temperature durability anisotropy, a method for forming a forming part with a low high-temperature durability anisotropy, and a forming part with a low high-temperature durability anisotropy. The forming powder is composed of the following chemical components in terms of mass percentage (wt-%): 0.03%≤C≤0.09%, 20.50%≤Cr≤23.00%, 0.50%≤Co≤2.50%, 8.00%≤Mo≤10.00%, 0.20%≤W≤1.00%, 17.00%≤Fe≤20.00%, 0%≤B≤0.002%, 0%≤Mn≤1.00%, 0.0375%≤Si≤0.15%, 0%≤O≤0.02%, 0%≤N≤0.015%, the rest are Ni and inevitable impurities; wherein 0.2≤C/Si≤1.0.

A method of manufacturing a device includes thermally spraying tungsten carbine in feedstock that does not include Cobalt but that includes Nickel, Copper, or a Nickel-Copper alloy, the method improves the base coating toughness, anticorrosion, and antifouling properties for high load application in sea water and brackish water environments. Additionally, a Cobalt-free material lowers material costs and reduces the global demand of Cobalt. Providing a topcoat of a Silicon-doped DLC significantly reduces the topcoat brittleness of common DLC failures such as “egg shell” in high stress applications. Thus, high hardness, low friction applications may be tailored in high stress applications.

The present invention relates to a waste gate component for a turbo charger comprising an alloy comprising about 30 to about 42 wt.-% Ni, about 15 to about 28 wt.-% Cr, about 1 to about 5 wt.-% Cr, about 1 to about 4 wt.-% Ti, and at least about 20 wt.-% Fe, and to processes for preparing such a waste gate component.

A nickel-based alloy for powder has the contents (in wt. %): C 0.01-0.5%, S max. 0.5%, in particular max. 0.03%, Cr 20-25%, Ni radical Mn max. 1%, Si max. 1%, Mo up to 10%, Ti 0.25-0.6%, Nb up to 5.5%, Cu up to 5%, in particular up to 0.5%, Fe up to 25%, P max. 0.03%, in particular max. 0.02%, Al 0.8-1.5%, V max. 0.6%, Zr max. 0.12%, in particular max. 0.1%, Co up to 15%, B 0.001-0.125% O >0.00001-0.1% and impurities dependent on production. The carbon to boron ratio (C/B) is between 4 and 25.

Nickel-based alloys having improved localized corrosion resistance, improved stress-corrosion cracking (SCC) resistance and impact strength are disclosed. The improvements come from the provision of compositions that are resistant to deleterious phase formation and from the addition of alloying elements that improve corrosion resistance, impact strength, and SCC resistance. The nickel-based alloys of the present invention have controlled amounts of Ni, Cr, Fe, Mo, Co, Cu, Mn, C, N, Si, Ti, Nb, Al, and B. When subjected to post-cladding heat treatments or welding, the nickel-based alloys retain their corrosion resistance and possess desirable impact strengths.

Corrosion-resistant coated articles and a thermal chemical vapor deposition coating processes are disclosed. The article includes a metallic material having a first composition including a first iron concentration and a first chromium concentration, the first iron concentration being greater than the first chromium concentration, a surface of the metallic material having a second composition including a second iron concentration and a second chromium concentration, the second chromium concentration being less than the first chromium concentration, an oxide layer on the surface of the metallic material having a third composition including an iron oxide concentration and a chromium oxide concentration, the chromium oxide concentration being greater than the iron oxide concentration and being devoid of precipitates, and a thermal chemical vapor deposition coating on the oxide layer. The process includes producing the article by treating to produce the surface, oxidizing to produce the oxide layer, and applying the coating.

This invention provides, by simple mechanical treatment, a metal powder that generates no smoke phenomenon when laminating and shaping a metal object even when decreasing a preheating temperature. In the metal powder, a solidification structure including a dendritic structure on the surface of the metal powder has been flattened. The solidification structure including the dendritic structure has been flattened by mechanical treatment including collision treatment of the metal powder. The mechanical treatment is performed by heating the metal powder to 100° C. to 300° C. The metal powder is a metal powder that is heated to a predetermined temperature and whose capacitance component of a measured impedance becomes zero. This metal powder is a powder of a metal alloy produced by an atomization process or a plasma rotation electrode process. The metal alloy includes a nickel-based alloy, a cobalt-chrome alloy, an iron-based alloy, an aluminum alloy, and a titanium alloy.

An additively manufactured body including a Ni—Cr—Mo based alloy that is excellent in mechanical properties. An additively manufactured body of the present invention is a member including a Ni-based alloy that includes Ni at the largest content by a mass ratio, and Cr and Mo at second largest contents by a mass ratio; and includes segregation of Mo in at least a part of a crystal grain(s). This crystal grain(s) has columnar cell structures (CL), and preferably the segregation of Mo exists between adjacent cell structures. A tensile strength of 850 MPa or higher and an elongation of 50% or higher can be obtained.

The invention proposes the design of a pyrotechnic initiator applied in the aerospace field, including three main components: the housing, the burning bridge and the pyrotechnic dose. The housing has a protective effect and increases the power of the pyrotechnic dose, in which the number of threads and the thread length are calculated to ensure to withstand the fire pressure. The burning bridge generates heat to ignite the ignition dose, the diameter of the bridge is calculated to ensure the resistance of the burning bridge. The pyrotechnic dose consists of 3 ingredient doses, which are the ignition dose, the intermediate dose, and the fire-boosting dose. In which, the mass, composition and density of the doses are calculated to ensure that the required working pressure is created.

An Ni-based alloy pipe for nuclear power has a chemical composition consisting of, in mass percent: C: 0.015 to 0.030%, Si: 0.10 to 0.50%, Mn: 0.10 to 0.50%, P: 0.040% or less, S: 0.015% or less, Cu: 0.01 to 0.20%, Ni: 50.0 to 65.0%, Cr: 19.0 to 35.0%, Mo: 0 to 0.40%, Co: 0.040% or less, Al: 0.30% or less, N: 0.010 to 0.080%, Ti: 0.020 to 0.180%, Zr: 0.010% or less, and Nb: 0.060% or less, the balance: Fe and impurities, and satisfying [(N−Ti×14/48)×d.sup.3≥4000] in relation to an average grain diameter, wherein a standard deviation of grain diameters is 20 μm or less, and a hardness of insides of grains is 180 HV or more.