Reduction, sintering and mechanical properties of rhenium-tungsten …

1. Introduction. Tungsten-rhenium alloys have broad applications in aerospace, national defense, electronics industry and machinery manufacture, due to the advantages of high melting point, high strength at elevated temperatures [1], [2], [3], good ductility at low temperatures [3], low thermal expansion coefficient [4], [5] and high …

Rhenium Alloys: White papers and technical literature

Tungsten - rhenium alloys with a melting point of 3050°C and a recrytallization temperature near 1900°C are being used in aerospace, temperature measuring and friction stir welding applications. The mechanical properties of the tungsten 25% rhenium and tungsten 24.5% rhenium with 2% hafnium carbide at room temperature, 1371°C and …

Microstructure and Properties of Tungsten Rhenium …

Tungsten alloy with addition of rhenium and tantalum was prepared by laser sintering. Microstructure and properties of the samples were tested by optical microscope, X-ray difractometer and ...

Superplasticity in tungsten-rhenium alloys

high elongations at 3630° F (2000° C) for tungsten alloys containing 20- to 30-atomic percent rhenium is reflected in the tensile strengths, which exhibit a distinct minimum in the vicinity of 28-atomic-percent rhenium (fig. 3). To determine the effects of annealing temperature on the tensile properties, speci mens were annealed at 3090° F ...

About Rhenium Alloys

Rhenium Alloys is a leading supplier and researcher of rhenium, molybdenum, tungsten, and their alloys (molybdenum-rhenium, tungsten-rhenium, tungsten-copper). Located and made in the USA. …

Tungsten and Rhenium – Comparison – Properties

Rhenium. More than 80% of the global rhenium usage is in high-temperature superalloys for aircraft applications like turbine blades and engine parts. These alloys contain up to 6% rhenium, making jet engine construction the largest single use for the element. Rhenium is added to nickel-based super alloys to improve creep strength of the alloys.

Tungsten-Rhenium Alloy – Material Table

Tungsten-rhenium alloys offer the highest temperature strength of any metal; the combination drastically increases ductility and tensile strength. Rhenium is gaining …

Rhenium Alloys: Pure Tungsten wire and rod

Rhenium Alloys provides a wide range of wire products to serve applications in major electronics products, thermocouples, high temperature furnace parts, and welding requirements. Tungsten Wire, a precision wire, with its very high tensile strength even at a very small diameter, and good electrical conductivity is widely used for thermocouples ...

Effect of neutron irradiation on thermal diffusivity of tungsten …

Fig. 7 represents the lattice constants of W–Re alloys as a function of Re content. Lattice constants of all the specimens increased after irradiation. Specifically, W–25% Re exhibited a significant increase. Further, after annealing the lattice constants of W, W–10% Re and W–25% Re decreased; however, W–25% Re still has a large lattice …

Simulation study on uniaxial tensile mechanical and

A first-principles model for anomalous segregation in dilute ternary tungsten-rhenium-vacancy alloys. Journal of Physics: Condensed Matter, 29 (2017), Article 145403. View in Scopus Google Scholar [25] G. Kresse, J. Furthmüller. Efficient iterative schemes for ab initio total-energy calculations using a plane-wave basis set.

Rhenium Alloys

Tungsten-rhenium alloys, applied by vapor deposition, are used to coat the surface of molybdenum targets in X-ray tube manufacture. Other rhenium alloys, with tungsten …

Strengthening of tungsten by coherent rhenium …

Third, alloying tungsten with rhenium is currently the only proven method to improve the ductility of unirradiated tung-sten [9, 10], although there are computational results …

Study on high-temperature mechanical properties of W25Re …

Tungsten rhenium alloy has the advantages of high melting point, high hardness, high strength, high plasticity, high recrystallization temperature, high resistivity, …

Molecular dynamic simulations of displacement cascades in tungsten …

Microstructural development of tungsten and tungsten–rhenium alloys due to neutron irradiation in HFIR. J. Nucl. Mater., 455 (2014), pp. 460-463. View PDF View article View in Scopus Google Scholar [16] W. Jäger, M. Wilkens. Formation of vacancy-type dislocation loops in tungsten bombarded by 60keV Au ions.

Discovery, properties and applications of rhenium and its …

Tungsten-rhenium alloys are also applied in rotating anodes, e.g., for mammography, angiography and computer tomography (CT). These days the most frequent rhenium application is the production of superalloys for jet engines. The nickel superalloys contain 3–6% rhenium and are utilized in combustors, turbine blades and jet nozzles.

Interatomic potential to study plastic deformation in tungsten-rhenium …

Interatomic potential to study plastic deformation in tungsten-rhenium alloys. In this work, an interatomic potential for the W-Re system is fitted and benchmarked against experimental and density functional theory (DFT) data, of which part are generated in this work. Having in mind studies related to the plasticity of W-Re alloys under ...

Phase diagram and lattice instability in tungsten-rhenium alloys

Tungsten alloys containing materials, such as rhenium and tantalum, demonstrate high ductility [11, 12]. Other alloys, such as oxide dispersion-strengthened heavy alloys, demonstrate enhanced ...

Discovery, properties and applications of rhenium and its …

Tungsten-rhenium alloys are also applied in rotating anodes, e.g., for mammography, angiography and computer tomography (CT). These days the most …

Tungsten Rhenium Wire WRe W3Re W5Re W25Re W26Re | Concept Alloys

Product Information Tungsten Rhenium Thermocouple Wire Type C: Tungsten 5% Rhenium versus Tungsten 26% Rhenium wire Type D*: Tungsten 3% Rhenium versus Tungsten 25% Rhenium wire Type G*: Pure Tungsten versus Tungsten 26% Rhenium wire * "Type D" and "Type G" are commonly used industry terms and not ASTM letter …

PROPERTIES OF DILUTE TUNGSTEN-RHENIUM ALLOYS

costly, tungsten-rhenium alloys. Pugh et al. (ref. 5) have demonstrated that this is the case with fine wire of doped tungsten made by powder metallurgy techniques. In a pre-vious study (ref. 6), room-temperature bend ductility in worked sheet fabricated from electron-beam-melted tungsten alloys with 2 and 6 percent rhenium was observed.

PROPERTIES OF TUNGSTEN ALLOYS WITH RHENIUM

Wires of a tungsten alloy containing 20 wt.% rhenium had a tensile strength of 160 to 190 kg/mm/sup 2/ and an elongation of 18 to 20% after annealing. The specific resistivity also increaesd considerably. These alloys are recommended for use in vacuum tubes as cathode, heater more ». Metalloved. i Termichesk.

Microstructure and Properties of Tungsten Rhenium Alloy …

Learn how laser sintering can produce tungsten rhenium alloy with improved mechanical and thermal properties in this research paper by Shan Jiang. Download the full-text PDF for free on ResearchGate.

Thermal diffusivity of irradiated tungsten and tungsten-rhenium alloys

Fukuda et al., reported tungsten-rhenium alloy showed a systematic change with rhenium concentration, but on the other hand, K-doped W showed almost same thermal diffusivity [4]. In their paper, W-1% Re alloy showed 47.6 mm 2 /s at 401 °C, and this thermal diffusivity is very close to that of the irradiated pure tungsten in this study.

Surface modification and deuterium retention in rhenium doped tungsten

Surface modification and deuterium (D) retention in rhenium (Re) doped tungsten (Namely, W-5 wt.% Re) exposed to 100 eV deuterium plasma with a constant flux of 1.8 × 10 21 D/m 2 /s were investigated. All the samples were exposed to D plasma at three types of exposure conditions, namely, exposure with doses of 1.3 × 10 25 D/m 2 …

Rhenium Alloys: Rhenium materials, manufacturing and …

Rhenium Alloys is a leading manufacturer and supplier of Rhenium refractory metal and Rhenium alloys. We produce rhenium powder, pellets, ammonium perrhenate, plate, sheet, foil, ribbon, wire, flat wire, rod, and bar for high performance, high temperature applications. ... Molybdenum-Rhenium and Tungsten-Rhenium. Rhenium Powder is …

A novel performance optimization study in additively …

Tungsten (W) is considered as a promising plasma facing material due to its good thermal conductivity, high melting point and good radiation resistance [1].It also has low sputtering yield and low tritium retention under the high-flux plasma conditions [2], [3], [4].By utilizing laser powder bed fusion (LPBF) technology, it is possible to manufacture …

Yielding and fracture in tungsten and tungsten …

The unalloyed tungsten and tungsten-rhenium alloys used in this program are listed in table I together with carbon and oxygen analyses sampled from the swaged rod. In ad­ dition, the grain sizes obtained on the rod after a 1-hour anneal at 2255' K are listed. Fabrication techniques used for the alloys have been documented previously (ref. 7). r-

Oxidation Properties of W–5% Re and W–26% Re Tungsten–Rhenium …

Tungsten–rhenium thermocouples are ideal alternatives to platinum–rhodium thermocouples for high-temperature measurement. This is attributed to the high thermal electromotive force, high melting point, rapid response, and cost efficiency of tungsten–rhenium thermocouples [1–3].ASTM International standardized a W–5% …