Abstract: Ni—Cr—Nb—P—B alloys optionally bearing Si and metallic glasses formed from said alloys are disclosed, where the alloys have a critical rod diameter of at least 5 mm and the metallic glasses demonstrate a notch toughness of at least 96 MPa m1/2.

Abstract: Nickel based alloys capable of forming bulk metallic glass are provided. The alloys include Ni—Cr—Si—B compositions, with additions of P and Mo, and are capable of forming a metallic glass rod having a diameter of at least 1 mm. In one example of the present disclosure, the Ni—Cr—Mo—Si—B—P composition includes about 4.5 to 5 atomic percent of Cr, about 0.5 to 1 atomic percent of Mo, about 5.75 atomic percent of Si, about 11.75 atomic percent of B, about 5 atomic percent of P, and the balance is Ni, and wherein the critical metallic glass rod diameter is between 2.5 and 3 mm and the notch toughness between 55 and 65 MPa m1/2.

Abstract: The disclosure provides Fe—Cr—Ni—Mo—P—C—B metallic glass-forming alloys and metallic glasses that have a high glass forming ability along with a high thermal stability of the supercooled liquid against crystallization.

Abstract: The disclosure provides Zr—Ti—Cu—Ni—Al metallic glass-forming alloys and metallic glasses that have a high glass forming ability along with a high thermal stability of the supercooled liquid against crystallization.

Abstract: The present disclosure provides Au-based alloys comprising Si capable of forming metallic glass matrix composites, and metallic glass matrix composites formed thereof. The Au-based metallic glass matrix composites according to the present disclosure comprise a primary-Au crystalline phase and a metallic glass phase and are free of any other phase. In certain embodiments, the metallic glass matrix composites according to the present disclosure satisfy the 18-Karat Gold Alloy Hallmark.

Abstract: Pd—Cu—P metallic glass-forming alloy compositions and metallic glasses comprising at least one of Ag, Au, and Fe are provided, wherein the alloys demonstrate improved glass forming ability, as compared to Pd—Cu—P alloys free of Ag, Au, and Fe, and are capable of forming metallic glass rods with diameters in excess of 3 mm, and in some embodiments 26 mm or larger.

Abstract: The disclosure provides Fe—Cr—Ni—Mo—P—C—B metallic glass-forming alloys and metallic glasses that have a high glass forming ability along with a high thermal stability of the supercooled liquid against crystallization.

Abstract: The disclosure is directed to an apparatus comprising feedback-assisted control of the heating process in rapid discharge heating and forming of metallic glass articles.

Abstract: A rapid discharge heating and forming apparatus is provided. The apparatus includes a source of electrical energy and at least two electrodes configured to interconnect the source of electrical energy to a metallic glass sample. The apparatus also includes a shaping tool disposed in forming relation to the metallic glass sample. The source of electrical energy and the at least two electrodes are configured to deliver a quantum of electrical energy to the metallic glass sample to heat the metallic glass sample. The shaping tool is configured to apply a deformational force to shape the heated sample to an article. The at least two electrodes have a yield strength of at least 200 MPa, a Young's modulus that is at least 25% higher than the metallic glass sample, and an electrical resistivity that is lower than the metallic glass sample by a factor of at least 3.

Abstract: Methods and apparatus for forming high aspect ratio metallic glass objects, including metallic glass sheets and tubes, by a melt deposition process are provided. In some methods and apparatus a molten alloy is deposited inside a channel formed by two substrates moving relative to each other, and shaped and quenched by conduction to the substrates in a manner that enables the molten alloy to vitrify without undergoing substantial shear flow.

Abstract: The disclosure is directed to Zr—Co—Ni—Al alloys that optionally comprise Ti and are capable of forming metallic glasses having a combination of high glass forming ability and high reflectivity. Compositional regions in the Zr—Co—Ni—Al and Zr—Ti—Co—Ni—Al alloys are disclosed where the metallic glass-forming alloys demonstrate a high glass forming ability while the metallic glasses formed from the alloys exhibit a high reflectivity. The metallic glass-forming alloys demonstrate a critical plate thickness of at least 2 mm, while the metallic glasses formed from the alloys demonstrate a CIELAB L* value of at least 78.

Abstract: The disclosure is directed to Ni—P—Si alloys bearing Mn and optionally Cr, Mo, Nb, and Ta that are capable of forming a metallic glass, and more particularly demonstrate critical rod diameters for glass formation greater than 1 mm and as large as 5 mm or larger.

Abstract: The present disclosure is directed to the use of cellulosic materials, such as wood, paper, etc., or synthetic polymeric materials, such as a thermoplastic, rubber, etc., or a composite containing one or more of these materials as feedstock barrels for the process of injection molding of metallic glasses by rapid capacitor discharge forming (RCDF) techniques.

Abstract: The present disclosure is directed to feedstock barrels comprising thermally and electrically insulating films configured to be adjacent to a feedstock sample when it is loaded in the barrel for the process of shaping metallic glasses by rapid capacitor discharge forming (RCDF) techniques.

Abstract: The disclosure is directed to methods of forming metallic glass multilayers by depositing a liquid layer of a metallic glass forming alloy over a metallic glass layer, and to multilayered metallic glass articles produced using such methods.

Abstract: The disclosure provides Pt—P metallic glass-forming alloys and metallic glasses comprising at least two of Ni, Pd, Ag, and Au and optionally Si as well as potentially other elements, where the weight fraction of Pt is between 74 and 91 percent, and where the at least two of Ni, Pd, Ag, and Au contribute to increase the critical rod diameter of the alloy in relation to a Pt—P alloy free of Ni, Pd, Ag, and Au or a Pt—P alloy comprising only one of these elements. In embodiments where the PT850 hallmark is satisfied, alloys according to the disclosure are capable of forming metallic glass rods with diameters in excess of 3 mm, and in some embodiments 30 mm or larger.

Abstract: The disclosure is directed to Zr—Co—Ni—Al alloys that optionally comprise Ti and are capable of forming metallic glasses having a combination of high glass forming ability and high reflectivity. Compositional regions in the Zr—Co—Ni—Al and Zr—Ti—Co—Ni—Al alloys are disclosed where the metallic glass-forming alloys demonstrate a high glass forming ability while the metallic glasses formed from the alloys exhibit a high reflectivity. The metallic glass-forming alloys demonstrate a critical plate thickness of at least 2 mm, while the metallic glasses formed from the alloys demonstrate a CIELAB L* value of at least 78.

Abstract: Golf clubs formed from bulk-solidifying amorphous metals (i.e., metallic glasses) having high elastic modulus and fracture toughness, and to methods of forming the same are provided. Among other components, the golf club materials disclosed enable fabrication of flexural membranes or shells used in golf club heads (drivers, fairways, hybrids, irons, wedges and putters) exhibiting enhanced flexural or bending compliance together with the ability to deform plastically and avoid brittle fracture or catastrophic failure when overloaded under bending loads. Further, the high strength of the material and its density, comparable to that of steel, enables the redistribution of mass in the golf club while maintaining a desired overall target mass.

Abstract: The disclosure provides Pd—Cu—P metallic glass-forming alloys and metallic glasses comprising at least one of Ag, Au, and Fe, where the alloys are capable of forming metallic glass rods with diameters in excess of 3 mm, and in some embodiments 26 mm or larger.

Abstract: The disclosure provides Pt—Cu—P glass-forming alloys bearing at least one of B, Ag, and Au, where each of B, Ag, and Au can contribute to improve the glass forming ability of the alloy in relation to the alloy that is free of these elements. The alloys are capable of forming metallic glass rods with diameters in excess of 3 mm, and in some embodiments 50 mm or larger. The alloys and metallic glasses can satisfy platinum jewelry hallmarks PT750, PT800, PT850, and PT900.