The invention relates to a forming method of an alloy comprising predominantly Ti β or nearby β stage, comprising the steps of: Preparation of a homogeneous mixture of particle powder comprising micrometric particles of pure Ti and nanoscale particles of at least one additional element or compound promoting the beta phase of the Ti during its cooling from its phase transition temperature. exposing said particle powder mixture to a focused energy source that is selectively heat at least a portion of a bed of said homogeneous powder mixture at a temperature between 850 and 1850° C. cooling of the part having undergone this exposure with conservation of the phase b of the Ti.

A process for forming a durable, resistant oxide coating on zirconium metal or zirconium-based alloys, in which the metal or alloy is heated either rapidly to a predetermined temperature in an oxidizing or non-oxidizing environment or heated rapidly or slowly in an environment substantially devoid of an oxidizing agent until the predetermined temperature has been reached. The base metal can be pure zirconium or a zirconium-based alloy having niobium and/or titanium. The temperature, oxygen level, and time of exposure are controlled to elicit the desired properties. The oxidized specimen is then cooled under controlled conditions to further control the thickness and hardness of the oxide layer.

A high strength and low modulus alloy is disclosed, and comprises at least five principal elements and at least one additive element. The principal elements are Ti, Zr, Nb, Mo, and Sn, and the additive element(s) are V, W, Cr, and/or Hf. Particularly, a summation of numeric values of Ti and Zr in atomic percent is less than or equal to 85, and the additive elements have a total numeric value in atomic percent less than or equal to 4. Experimental data reveal that, samples of the high strength and low modulus alloy all have properties of yield strength greater than 600 MPa and Young's modulus less than 90 GPa. As a result, experimental data have proved that the high strength and low modulus alloy has a significant potential for applications in the manufacture of various industrial components and/or devices, medical devices, and surgical implants.

A catalyst used for dehydrogenation of an organic hydrogen-storage material to generate hydrogen, a support for the catalyst, and a preparation process thereof are presented. A hydrogen-storage alloy and a preparation process thereof are provided. A process for providing high-purity hydrogen, a high-efficiently distributed process for producing high-purity and high-pressure hydrogen, a system for providing high-purity and high-pressure hydrogen, a mobile hydrogen supply system, and a distributed hydrogen supply apparatus are also described.

A spiral spring intended to equip a balance of a horological movement, wherein the spiral spring is made of an alloy consisting of Nb, Ti and at least one element selected from Zr and Hf, optionally at least one element selected from W and Mo, possible traces of other elements selected from O, H, Ta, C, Fe, N, Ni, Si, Cu, Al, with the following weight percentages: a content of Nb comprised between 40 and 84%, a total content of Ti, Zr and Hf comprised between 16 and 55%, a content for W and Mo respectively comprised between 0 and 2.5%, a content for each of said elements selected from O, H, Ta, C, Fe, N, Ni, Si, Cu, Al comprised between 0 and 1600 ppm with the sum of said traces less than or equal to 0.3% by weight. The method for manufacturing the spiral spring is also disclosed.

A tubular component for a pressurised-water nuclear reactor, has the following composition by weight: 0.8%≤Nb≤2.8%; traces≤Sn≤0.65%; 0.015%≤Fe≤0.40%; preferably 0.020%≤Fe≤0.35%; traces≤C≤100 ppm; 600 ppm≤O≤2300 ppm; preferably 900 ppm≤O≤1800 ppm; 5 ppm≤S≤100 ppm; preferably 8 ppm≤S≤35 ppm; traces≤Cr+V+Mo+Cu≤0.35%; traces≤Hf≤100 ppm; F≤1 ppm; the remainder being zirconium and impurities resulting from production. The tubular component has an outer surface with a roughness Ra less than or equal to 0.5 μm, obtained following a final mechanical polishing step. The outer surface has a roughness Rsk≤1 in absolute value and a roughness Rku≤10.

Processes for producing peening media, the peening media produced from such processes, and methods of using such media. Particles are provided having surfaces that are formed of or contain a metal that exhibits solubility for oxygen in a metallic phase so as to increase in surface hardness as a result of solid solution strengthening due to oxidizing of the surfaces of the particles. The particles are subjected to a thermal process in an oxygen-containing atmosphere at a process temperature and for a process duration sufficient to oxidize the surfaces of the particles to increase the surface hardness of the particles while not forming an oxide layer that encases the particles.

Disclosed are a resettable metallic glass and a manufacturing method therefor. The resettable metallic glass may include: (1) an element group TM consisting of group IV transition elements; (2) an element group E having a negative (−) enthalpy of mixing with group IV transition elements and including a eutectic reaction of a large temperature difference; (3) an element group PN having a positive (+) enthalpy of mixing with the element group TM and a negative (−) enthalpy of mixing with the element group E to form both a TM-E cluster resetting core and an E-PN cluster resetting core or, on the contrary, an element group NP having a negative (−) enthalpy of mixing with the element group TM and a positive (+) enthalpy of mixing with the element group E to form both a TM-E cluster resetting core and a TM-NP cluster resetting core.

A multi-layered implant and methods of forming the multi-layered implant are disclosed. The multi-layered implant includes a Metal Injection Molded body comprising a titanium alloy, a porous coating layer on a first surface of the Metal Injection Molded body, and a zirconium alloy layer on a second surface of the Metal Injection Molded body. The first surface and the second surface are on opposite sides of the Metal Injection Molded body. A zirconia layer may be formed over the zirconium alloy layer. The porous coating may be a titanium-based porous coating.

The present disclosure provides a metal-ceramic composite structure and a fabrication method thereof. The metal-ceramic composite structure includes a ceramic substrate having a groove on a surface thereof; a metal member filled in the groove, including a main body made of zirconium base alloy, and a reinforcing material dispersed in the main body and selected from at least one of W, Mo, Ni, Cr, stainless steel, WC, TiC, SiC, ZrC, ZrO.sub.2, BN, Si.sub.3N.sub.4, TiN and Al.sub.2O.sub.3; a luminance value L of the metal member surface is in a range of 36.92-44.07 under a LAB Chroma system.