A system (5) and method (800) for unit cell casting of titanium or titanium-alloys is disclosed herein. The system (5) comprises an external chamber (45), a crucible (10) positioned within the external chamber (45), an induction coil (15) positioned around the crucible, an internal chamber (40) positioned within the external chamber (45), and a mold (30) positioned within the internal chamber (40). The external chamber (45) is evacuated and a pressurized gas is injected into the evacuated external chamber (45) to create a pressurized external chamber (45). An ingot (20) is melted within the crucible utilizing induction heating generated by the induction coil (15). The internal chamber (40) is evacuated to create an evacuated internal chamber (40). The titanium alloy material of the ingot (20) is completely transferred into the mold (30) from the crucible (10) using a pressure differential created between the external chamber (45) and the internal chamber (40).

The disclosure relates generally to mold compositions and methods of molding and the articles so molded. More specifically, the disclosure relates to mold compositions, intrinsic facecoat compositions, and methods for casting titanium-containing articles, and the titanium-containing articles so molded.

A vehicle is adapted to sense a condition of use in which a maximum speed control speed is reduced. The condition of use may be indicated by a sensor of the vehicle, or selected according to the kind of terrain across which the vehicle is travelling. Selection of terrain type may be manual or automatic, and may enable a selection of sensors appropriate to the terrain type. A vehicle driver may select a speed control speed lower than the permitted maximum.

A method of forming a component having an internal passage defined therein is provided. The method includes positioning a jacketed core with respect to a mold. The jacketed core includes a hollow structure formed at least partially by an additive manufacturing process, and an inner core disposed within the hollow structure. The method also includes introducing a component material in a molten state into a cavity of the mold, and cooling the component material in the cavity to form the component. The inner core is positioned to define the internal passage within the component.

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.

An object of the present invention is to provide a molten ingot of a platinum group metal or a platinum group-based alloy having a high material yield by suppressing a scattering phenomenon during heating and melting in a method for producing a platinum group metal or a platinum group-based alloy. The method for producing a platinum group metal or a platinum group-based alloy according to the present invention includes a preparing step of weighing a raw material that is partially or entirely of powder and, when the alloy is to be produced, mixing the weighed raw material to obtain a powder mixture, a molding step of molding and solidifying the prepared raw material to obtain molded bodies, a sintering step of sintering the molded bodies to obtain a sintered body, a melting step of melting the sintered body to produce a molten ingot, and a deformation processing step of processing the molten ingot. In the sintering step, the molded bodies are sintered in a stacked state to produce a sintered body as a joined body.

A cast molding method accomplishes the cast molding by a smelting chamber, a casting chamber, a hinge press system and a vacuum system. First, a metallic die is assembled in the casting chamber and then a metallic material is put in the smelting chamber. Next, the metallic material is heated up in a vacuum state and the casting chamber is pre-heated at a same time. After the metallic material in the smelting chamber has been melted down and the casting chamber has been vacuumized, the melted metallic material is filled into the metallic die, and then the hinge press system is turned on to cast mold the metallic die, resulting in a semi-solid product. After the semi-solid product has been cooled down, the product of cast molding is accomplished according to the present invention.

Alloy castings are provided and comprise Nb, Ta, V, Ti, and optional Hf in controlled proportions to impart unprecedented and unexpected high ductility in refractory based alloys. Certain alloys are extremely ductile (able to sustain >50% cold roll reduction without fracture) while have high hardness (about 400HV). The combination of high thermodynamic phase stability, low-temperature ductility, and strength at room temperature makes the disclosed alloy family likely candidates as next-generation high temperature structural alloys.

A metallic glass formed from an alloy having the elements: Zr from 45 to 68 atomic percent, and Cu less than 25 atomic percent; and Al having between 9 and 12 atomic percent; and Ti from 0.5 to 10 atomic percent; and Nb from 0.1 to 6 atomic percent; and other elements not more than 0.1% by weight each and not more than 0.5% by weight in total; and the total sum of the preceding elements being equal to 100% by weight in total; and the sum Zr+Nb+Ti is between 64 and 69 atomic percent. The invention also relates to a part made of metallic glass and to its manufacturing method.

A needle for a warp knitting machine, manufactured by means of an amorphous alloy injection molding process and comprising the following components: in parts by weight, 57.5-65.5 parts of zirconium, 11-16 parts of copper, 7-13 parts of nickel, 5-10 parts of titanium, 1-7 parts of aluminum, 1-7 parts of beryllium and 0.3-2 parts of yttrium. A method for manufacturing a needle for a warp knitting machine by means of an amorphous alloy injection molding process, comprising the following steps: (1) material mixing and smelting for manufacture into small blocks; (2) injection molding; (3) alloy opening removal; (4) thickness machining; (5) slotting; (6) polishing; and (7) electroplating. Beryllium and yttrium are added into amorphous alloy zirconium-based metal; beryllium can improve the toughness of a latch needle product, and has high fatigue limit and high wear resistance; yttrium powder can improve the strength, toughness and wear resistance of a latch needle blank.