rhenium alloys cycles

Alloy information helps prioritize material criticality …

Rhenium is characterized by a high alloy fraction (70%) and a moderate-to-high functional recycling rate. Rhenium's alloy use is entirely in superalloys—high in …

Rhenium mineral resources: A global assessment

Rhenium (Re) is one example of these critical metals (considered critical in a portion of criticality studies, McNulty and Jowitt, 2021) as it is vital for the production of high melting point alloys, meaning that numerous governments and businesses have enacted strategies to ensure secure supply chains of this metal. One notable example is the ...

Influence of roughness and composition on the total …

Figs. 1 a and b and 2 a and b present the hemispherical emissivity of W–25 wt% Re alloy and pure Re in the wavelength ranges 0.6–2.8 μm and 0.6–40 μm in the temperature range 1300–2200 K. Three measurements cycles (a–c) were done on the W–25 wt% Re sample, and two, (b) and (c), on the pure Re sample (unfortunately the …

Rhenium Material Properties

Rhenium Alloys Inc. provided all the PM samples. The pressed and sintered bars measured 95 to 96.3 percent dense. The ... PM pressed and sintered rhenium while low …

Improved performance rhenium containing single crystal alloy …

CMSX-4 alloy is a second-generation nickel-base single-crystal superalloy containing 3 percent (wt) rhenium (Re) and 70 percent volume fraction of the coherent {gamma}{prime} precipitate strengthening phase. The paper details the single-crystal casting process and heat treatment manufacturing development for turbine blades in …

Rhenium Alloys

Rhenium Alloys is a leading manufacturer of refractory metals and high temperature products in the metals and alloys industry. Use the CB Insights Platform to explore Rhenium Alloys's full profile. ... Nth Cycle focuses on metal refining within the technology industry. The company offers a modular refining system, known as the Oyster, which ...

Mechanical properties and microscopic analysis of …

The goal of the present work was to conduct high-cycle, stress-controlled fatigue tests of pure, sintered rhenium. The research also included the microscopic analysis of the initial microstructure, changes of the specimens' gauge sections' topology …

Thermal diffusivity of irradiated tungsten and …

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 …

What is the role of rhenium in single crystal …

Rhenium plays a critical role in single-crystal superalloys-its addition to first generation alloys improves creep life by a factor of at …

Orientation‐dependent mechanical responses in molybdenum‐rhenium alloys …

1 INTRODUCTION. Molybdenum-rhenium (Mo-Re) alloys have stable body-centered cubic (BCC) structure at a large temperature range, which makes Mo alloys to be widely applied in high temperature environment. 1, 2 However, high ductile-to-brittle transition temperature (DBTT) leads to a poor ductility and processing ability at room …

rhenium alloys cycles

rhenium alloys cycles. ... Iridium Rhenium Alloy | AMERICAN ELEMENTS. The number of electrons in each of rhenium's shells is 2, 8, 18, 32, 13, 2 and its electron configuration is [Xe] 4f 14 5d 5 6s 2. The rhenium atom has a radius of 137 pm and a Van der Waals radius of 217 pm. Rhenium was discovered and first isolated by Masataka Ogawa in 1908 ...

Mechanism of adding rhenium to improve hot corrosion resistance of

The above steps were taken as a cycle. Thereafter, hot corrosion tests were carried out on the specimens with new corrosive salts. The cycle was repeated until corrosion time reached 30 h. ... Atom probe tomography analysis of the distribution of rhenium in nickel alloys. Acta Mater. 2010;58(3):931. Article CAS Google Scholar Ge …

Rhenium Alloys: Tungsten-Rhenium alloys, wire, flat wire, …

Our Tungsten alloy products, including Tungsten-Rhenium wire, rod and flat wire are proudly Made in USA. PH: 440-365-7388. FX: 888-366-9830. TF: 888-743-6486. (888-RHENIUM) Rhenium Alloys offers Tungsten-Rhenium wire, flat wire, and rod ideal for thermocouples and electronics products, and Made in USA.

Rhenium Alloys: Molybdenum-Rhenium alloys, wire, …

Rhenium Alloys offers Rhenium and Molybdenum-Rhenium in plate, sheet, foil and ribbon. For over 45 years, Rhenium Alloys has been delivering high performance refractory metals to customers who desire an alloy that can withstand extreme temperatures and harsh environments. Alloying Rhenium and Molybdenum increases both strength and …

Rhenium Reduction

Abstract. A new single-crystal nickel-based superalloy has been developed as part of the GE Aviation strategy of "Rhenium Reduction" This new material provides …

resistance of nickel-based single-crystal …

of Rene N5 single-crystal superalloys with 3 wt% rhenium (NSR) was investigated compared with that of nickel-based single-crystal superalloys without rhenium (NS). …

Mechanical properties of Mo-Re alloy based on first …

All Molybdenum-Rhenium alloy models were constructed using a body-centered cubic structure as the unit cell, and a 2 × 2 × 2 SQS supercell was built. ... The self-consistent cycle energy convergence criterion was set to 1.0 × 10–5 eV/atom. The final total dataset contains 1550 structures with 24800 atoms that encompass Molybdenum …

Weldability of Molybdenum–Rhenium Alloy Based on a

Compared with other Mo alloys, molybdenum-rhenium (MoeRe) alloys have a higher recrystallization temperature, ... When the welding cycles increased from 2 to 8, the porosity ratio of FZ decreased ...

Rhenium Alloys: MOCVD Heater Filaments

Rhenium Alloys produces Rhenium Heater Filaments for today's most reputable systems, and continues to manufacture rhenium filaments for legacy systems including the D125, D180 and D300 units. ... Resistance to Specific Agents: Rhenium is resistant to water cycle corrosion; to sulfuric acid and hydrochloric acid (but can be dissolved by nitric ...

Rhenium Alloys Testing and Engineering Services and …

Rhenium Alloys uses a Struers DuraScan 50 micro-macro hardness tester. Using an automated programmable stage and a wide range of optics, this hardness tester is capable of reliably delivering load ranges from 10g to 10 kg using a unique combination of dead weights and load cell technology. With a maximum Z height over 10" and a large load ...

Rhenium and its alloys (Journal Article) | OSTI.GOV

@article{osti_6859673, title = {Rhenium and its alloys}, author = {Bryskin, B D}, abstractNote = {This paper reports on the scarcity and high cost of pure rhenium (Re) which precludes its extensive use for large structural components. Typical applications include wear resistant electrical contacts and mass-spectrometer cathodes. The metal is …

Rhenium Material Properties

Rhenium Alloys Inc. provided all the PM samples. The pressed and sintered bars measured 95 to 96.3 percent dense. The ... PM pressed and sintered rhenium while low cycle fatigue data is presented for CVD, PM pressed and sintered and HIP rhenium in Table IV. Rolled Sheet. From Figure 2 it is seen the

Evaluation of Rhenium Joining Methods

Coupons of rhenium-to-CI03 flat plate joints, formed by explosive and diffusion bonding, were evaluated in a series of shear tests. Shear testing was conducted on as-received, thermally-cyc1ed (100 cycles, from 21 to 1100 'c), and thermally-aged (3 and 6 hrs at 1100 'c) jOint coupons. Shear tests were also conducted on joint coupons with rhenium

On the possibility of rhenium clustering in nickel-based …

Despite the fundamental importance of rhenium to this alloy system, there is still no accepted mechanism by which these improved properties are conferred. Thus, improved analysis, theory and modelling are needed. The single-crystal superalloys contain a high (>50%) fraction of a strengthening phase, known as γ′, which resists deformation.

Beneficial Effects of Rhenium Additions on the Cyclic …

This study reports the effects of up to 4 at.%rhenium addition on the cyclicoxidation behavior ofβ-NiAl + α-Cr alloys having a basecomposition (in at.%) Ni-40Al-17Cr. Tests were conductedin still air at 1100°C for up to 250 1-hr cycles.The ternary alloy (without rhenium addition) exhibitedpoor cyclic-oxidation resistance, undergoing extensivescale …

Welcome to Rhenium Alloys, Inc.

Rhenium Alloys produces the highest quality rhenium heater filaments for the MOCVD Industry. We offer a proprietary, patent pending, surface treatment that increases the heat transfer efficiency without adding the …

Phase diagram and lattice instability in tungsten–rhenium alloys

Overall, the specimen was stable and remained within a coolable geometry upon conclusion of multiple thermal cycles to prototypical operating temperatures. Temperature-dependent synergistic evolution mechanism of rhenium and irradiation defects in tungsten-rhenium alloys. 2023, Journal of Materials Science and Technology ...

Mechanical properties and microscopic analysis of sintered rhenium

The physical and basic mechanical properties of rhenium, the types of manufacturing processes, and the applications of rhenium and its alloys have been discussed in previous research [4, 13, 15]. ... Approximation methods allowed for safe estimation of the fatigue life of rhenium in the high-cycle range. Nevertheless, it should …

Quartz Infrared Halogen Lamps

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Discovery, properties and applications of rhenium and its …

After a historic excursus the basic properties of rhenium are summarized, followed by selected classes of its compounds (halides and oxyhalides, oxides, perrhenates, carbides, carbonyls, alkoxides). Subsequently, the analysis of rhenium and a variety of rhenium alloys as well as the use of rhenium as catalyst are described. Finally, the …