Provided is a sputtering target formed from copper or a copper alloy, and the sputtering target contains either argon or hydrogen, or both, each in an amount of 1 wtppm or more and 10 wtppm or less. An object of the embodiment of the present invention is to provide a copper or copper alloy sputtering target which is capable of stably maintaining discharge even under conditions such as low pressure and low gas flow rate where it is difficult to continuously maintain sputtering discharge.

A nickel-based alloy of carbon (C): 0.11%-0.13% chromium (Cr): 9.7%-10.5% cobalt (Co): 10.5%-12.5% molybdenum (Mo): 2.8%-3.2% titanium (Ti): 3.3%-4.3% aluminum (Al): 5.2%-5.8%, Hafnium (Hf): 1.30%-1.50%; boron (B): 013%-014%; zirconium (Zr): 0.015%-0.03%, tantalum (Ta): up to 0.05%, niobium (Nb): up to 0.01%, silicon (Si): up to 0.01%, tungsten (W): up to 0.02%, vanadium (V): up to 0.02% no rhenium (Re) and/or no ruthenium (Ru), nickel, remaining impurities up to 0.1%.

A method for manufacturing a blade with a first portion and a second portion, the method includes forming the first portion that includes forming a model of the first portion from removable material, forming a first shell mould from the model of the first portion, and forming the single-crystal or columnar first portion m a first metal alloy in the first shell mould from a single-crystal seed, and forming the second portion in which the second portion is formed on the first portion, and in which the first portion and the second portion are made from different materials, the second portion being polycrystalline and formed from a second metal alloy. The blade includes a single-crystal or columnar first portion made from a first metal alloy and a polycrystalline second portion made from the second metal alloy different from the first metal alloy.

The invention relates to a high-strength as-cast copper alloy containing tin, with excellent hot-workability and cold-workability properties, high resistance to abrasive wear, adhesive wear and fretting wear, and improved corrosion resistance and stress relaxation resistance, consisting (in wt. %) of: 4.0 to 23.0% Sn, 0.05 to 2.0% Si, 0.01 to 1.0% Al, 0.005 to 0.6% B, 0.001 to 0.08% P, optionally up to a maximum of 2.0% Zn, optionally up to a maximum of 0.6% Fe, optionally up to a maximum of 0.5% Mg, optionally up to a maximum of 0.25% Pb, with the remainder being copper and inevitable impurities, characterised in that the ratio of Si/B of the element content of the elements silicon and boron lies between 0.3 and 10. The invention also relates to a casting variant and a further-processed variant of the tin-containing copper alloy, a production method, and the use of the alloy.

The invention relates to a high-strength as-cast copper alloy containing tin, with excellent hot-workability and cold-workability properties, high resistance to abrasive wear, adhesive wear and fretting wear, and improved corrosion resistance and stress relaxation resistance, consisting (in wt. %) of: 4.0 to 23.0% Sn, 0.05 to 2.0% Si, 0.005 to 0.6 B, 0.001 to 0.08% P, optionally up to a maximum of 2.0% Zn, optionally up to a maximum of 0.6% Fe, optionally up to a maximum of 0.5% Mg, optionally up to a maximum of 0.25% Pb, with the remainder being copper and inevitable impurities, characterised in that the ratio of Si/B of the element content of the elements silicon and boron lies between 0.3 and 10. The invention also relates to a casting variant and a further-processed variant of the tin-containing copper alloy, a production method, and the use of the alloy.

A copper-based alloy casting includes 69 to 88% of Cu, 2 to 5% of Si, 0.0005 to 0.04% of Zr, 0.01 to 0.25% of P by mass, and a remainder including Zn and inevitable impurities, and satisfies 60Cu3.5Si3P71. Further, mean grain size after melt-solidification is 100 m or less, and , and -phases occupy more than 80% of phase structure. Furthermore, the copper-based alloy casting according to the invention can further include at least one element selected from a group consisting of 0.001 to 0.2% of Mg, 0.003 to 0.1% of B, 0.0002 to 0.01% of C, 0.001 to 0.2% of Ti and 0.01 to 0.3% of rare earth element.

The present invention is directed to an unleaded free cutting brass alloy with excellent machinability, leak-tightness, reca stability, and mechanical properties, wherein the brass alloy comprises 65 to 75 weight % of copper, 22.5 to 32.5 weight % of zinc, 0.5 to 2.0 weight % of silicon, and other unavoidable impurities; wherein the total content of copper and zinc in the brass alloy is 97.5 weight % or more.

A method for casting comprising: providing a seed, the seed characterized by: an arcuate form and a crystalline orientation progressively varying along an arc of the form; providing molten material; and cooling and solidifying the molten material so that a crystalline structure of the seed propagates into the solidifying material.

Hardened cobalt alloys for forming jewelry, including finger rings as well as methods and processes for producing such alloys. In one illustrative embodiment, such an alloy can contain cobalt in an amount of from about 35 wt % to about 65 wt %, in combination with chromium in an amount of from about 16% wt to about 32 wt %, and molybdenum in an amount of from about 8 wt % to about 31 wt %. Aluminum, silicon, boron, titanium, and other hardness enhancing materials may also be present. Hot investment casting may be used to form items from the alloys, which may then be shaped or polished to a final form. Annular finger rings constructed from these materials may have a white appearance similar to white gold or platinum, may have increased resistance to scratching compared to traditional cobalt chromium rings, and may be easily be removed by cracking in an emergency situation.

Nuclear waste, such as, but not limited to, spent nuclear fuel (SNF) assemblies or portions thereof, are chipped and compacted into (waste) pucks that are placed within diecast molds, and then diecast injection molding occurs within the diecast molds and around the pucks that are emplaced within those diecast molds, with injected molten alloy(s), to form solid metal ingots upon sufficient cooling after the diecasting injection that contain within the ingots the emplaced pucks. The molten alloy(s) may contain a copper alloy. The molten alloy(s) may also contain neutron absorbers. The ingots may be placed into waste capsules. The ingots and/or the waste capsules may be landed in deeply located horizontal wellbores. The deeply located horizontal wellbores may be at least partially located within deeply located geologic formations.