tungsten rhenium cut

Horizontal Oxidation Diffusion Behavior of MEMS-Based Tungsten-Rhenium …

Tungsten-rhenium thin film thermocouples (TFTCs) are well suited for the surface temperature monitoring of hot components due to their small size, rapid response and low cost. In this study, a tungsten-rhenium TFTC with SiC protective film on all parts except the pads was fabricated by a microelectromechanical system (MEMS) process. …

Recycling of rhenium-containing wire scrap

Rhenium is a refractory metal and is one of the rarest elements. Due to its high cost, recycling of rhenium-containing scraps is of economic interest. This paper pertains to the recycling of rhenium from tungsten–rhenium wire scrap generated in the manufacturing of W 97 Re 3 wire. Rhenium from wire scrap, which contained 3.1–3.4% …

Properties and Applications of Tungsten Wire

Tungsten is one of the so-called refractory metals, along with molybdenum, niobium, rhenium, and tantalum. These materials are known primarily for their high melting points. In fact, tungsten has the highest melting point of all known metals, at 6192°F (3422°C), along with a number of other very useful characteristics, including:

Strengthening of tungsten by coherent rhenium …

Experimental data show that the accumulation of rhenium and osmium from transmutation reactions severely affect the microstructural evolution and property degradation of tungsten-based materials under neutron irradiation. Theory and modeling have confirmed that Re atom transport in W is by irradiation-produced migrating self …

A Closer Look at Utilizing Tungsten Wire for Probes

Advantages of Tungsten Wire for Wafer Probes. Several considerations took manufacturers inexorably toward using tungsten wire as the probe "needle" of choice: The stiffness needed for positional accuracy. No springback, so that the bend in the wire remains precisely above the chip. The ability for the wire to maintain its properties at ever ...

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 …

Tungsten Round Bar & Rod In Stock and Ready to Ship | Ed …

Stock orders are ready to ship within 24-hrs of confirmation or custom cut your order. Whether we ship your order from our NJ or CA locations, your materials will arrive professionally packaged and free from damage. Request a quote today or call our team of experts for our pricing. We strive to be your first choice for all your DFARs Tungsten ...

Effect of Rhenium addition on tungsten heavy alloys processed through

The specimens for tensile tests were cut from the sintered samples and tested as per ASTM E-8 standards using universal tensile testing machine ... From Fig. 2, it is clearly evident that the distribution of tungsten and rhenium follows exactly the same pattern with homogenous solubility of Re in Tungsten. We can notice that the metal …

Chemistry of Tungsten

Very pure tungsten is actually soft enough to be cut with an ordinary hacksaw but generally small amounts of impurities render the metal very hard and brittle. It i very similar to both Mo and Cr. It is straddled by elements having the second and third highest melting points, rhenium, Re, and tantalum, Ta.

Selective Laser Melting of Tungsten-Rhenium Alloys

Additively manufactured tungsten-rhenium alloys have been compared with pure tungsten in terms of their volumetric density, cracking behavior, microstructure, and hardness. The compositions W-5 wt.%Re and W-25 wt.%Re were explored. Increasing the rhenium content led to an increasing percentage of the theoretical density, with a …

Yielding and fracture in tungsten and tungsten …

A study was made of the mechanical properties of vacuum arc-melted tungsten and tungsten-rhenium alloys in the temperature range 77O to 810' K. The ductile-brittle transition temperature of the unalloyed recrystallized tungsten prepared for this study was 490' K and was reduced to 430' and 350' K by additions of 2 and 25 percent rhenium

Stability Evaluation and Calibration of Type C Thermocouples …

2.1 Tungsten–Rhenium Thermocouples. The chemical and physical properties of tungsten and rhenium, such as embrittlement of tungsten at high temperature, high vapor pressure of rhenium, and easy oxidation of tungsten–rhenium alloy, limit their use in certain applications [].Stability evaluation and calibration were …

Cracking behavior and microstructural, mechanical and …

Hatanoa et al. [21] reported that adding rhenium can reduce DBTT and improve ductility of tungsten materials, in particular, W-26%Re alloys exhibit plasticity at room temperature [22], but rhenium ...

Inter-diffusion analysis of joint interface of tungsten–rhenium couple

Fig. 2 shows the micrographs of the diffusion zone at the joint interface of the as-received tungsten–rhenium couple and the tungsten–rhenium couple which were annealed in various temperatures, from 1100 °C to 1400 °C, for 10.8 ks, respectively. The quantitative concentration profile of rhenium and tungsten was determines by EPMA on …

Study on high-temperature mechanical properties of …

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

Unveiling the intrinsic rhenium effect in Tungsten

The plate-shaped specimens used in SPT were cut from W alloy sheet by electrical discharge machining, and then mechanically ground to a thickness of 0.500 ± 0.005 mm. ... A fractographic study of tunsgten and dilute tungsten-rhenium alloys. J. Less Common. Met., 10 (1966), pp. 328-343. View PDF View article View in Scopus Google …

Research status of tungsten-based plasma-facing materials: …

The surface of a reference tungsten sample (a) and a"half-cut" Wf/W sample (b). Red circles mark the position of a selection of best noticeable blisters. The perceived light source in images (a) and (b) is located at the bottom right. ... The fracture toughness of sintered and forged tungsten alloys with rhenium contents of 5, 10 and 26 wt ...

Influence of roughness and composition on the total …

Measurements of the total directional and hemispherical emissivity of tungsten, rhenium and tungsten with 25% rhenium samples of various surface states was carried out in two wavelength ranges, 0.6–2.8 and 0.6–40 μm, from 1300 up to 2500 K in high vacuum.A clear trend was identified for the ratio of the 0.6–2.8 μm to the 0.6–40 μm …

Rhenium Refractory Metal | Ed Fagan

Rhenium Refractory Metals. The element Rhenium is number 75 on the periodic table and is one of the five traditionally defined refractory metals (Molybdenum, Niobium, Rhenium, Tantalum and Tungsten). Rhenium is a rare, silvery-white, dense element that resists corrosion and oxidation, but will eventually tarnish in an environment that contains ...

Understanding the thermal conductivity of pristine W

Tungsten (W) and tungsten-rhenium (W–Re) alloys are considered as the preferred plasma facing materials and structure materials for advanced fusion reactors. ... Habainy et al. [8] examined the specimens that were cut from the cross-section of a 1 cm thick cross-rolled tungsten plate with a purity of 99.9% tungsten. The dislocation density ...

Defect evolution of neutron irradiated ITER grade tungsten …

Samples were cut from the bar in disk form having a diameter of about 11 mm and a thickness of about 0.5 mm. The samples were irradiated in the BR2 reactor ... Microstructural development of tungsten and tungsten-rhenium alloys due to neutron irradiation in HFIR. J. Nucl. Mater. (2014)

MACHINING GUIDE FOR TUNGSTEN ALLOYS

See more on cnccookbook

Explore further

How One Job Shop Tackled Tungsten | Modern Machine …mmsonlineA Guide For Machining Copper Tungsten Alloys

WebTungsten Rhenium is one of numerous metal alloys sold by American Elements under the trade name AE Alloys™. Generally immediately …

Tungsten Rhenium Alloy | AMERICAN ELEMENTS

SECTION 1. IDENTIFICATION. Product Name: Tungsten Rhenium Alloy Product Number: All applicable American Elements product codes, e.g. W-RE-02, W-RE-03, W-RE-04, W-RE-05 CAS #: 1 Relevant …

Hafnium carbide strengthening in a tungsten-rhenium …

Tungsten--rhenium--hafnium carbide (W---Re---HfC) alloy is the strongest metallic material at temperatures greater than 2000 K. In the this paper, the mechanical properties of tungsten and a W--3.6Re--0.26HfC alloy were determined from 1700 to 2980 K in a vacuum below 10[sup [minus]5] Pa. hfC particles had an exceptional strengthening …

Assessment of hardening due to non-coherent precipitates in tungsten

In fusion applications, tungsten (W) based alloys are known to harden and embrittle as a result of irradiation-assisted transmutation to rhenium (Re) and its subsequent precipitation into non ...

Thermal diffusivity of tungsten irradiated with protons up …

Tanabe et al. [5] studied the effect of different rhenium content in tungsten-rhenium alloys on the thermal diffusivity in the temperature range 300–1000 K. It was observed that thermal diffusivity of pure tungsten decreases with increasing temperature, whereas the alloys, having 5–25 wt% rhenium, do not show a sharp change in thermal ...

Range Analysis of Thermal Stress and Optimal Design for Tungsten …

Tungsten-rhenium alloys of different compositions were used such as tungsten-3% rhenium (W-3Re) type and tungsten-25% rhenium (W-25Re) type materials for the TFTC sensors. ... Ceramic substrate is made by powder sintering. It's cut into the proper size and polished to make films sputter on the surface successfully. The substrate is ...

/tardir/tiffs/a399890

Tungsten-rhenium-hafnium RH-1 RH-2 2.95 Re - 0.37 Hf 7 4.77 Re - 0.36 Hf 5 <5 <5 4 6 332 333 SP SP All ingots melted onto a retractable stool except where noted. bSP, single phase; TP, two phase. 3Melted into a nonretractable deep mold. TABLE II. ALLOY FABRICATION CONDITIONS ... The extrusions were then cut

Preparation Method & Application of Tungsten Rhenium Alloy …

Tungsten-rhenium alloy rods are cut into discs and used as electrical contact materials. They have low contact resistance, low arcing current and arcing voltage, optimal arc stabilization performance, and low arc erosion resistance. Therefore, they are widely used to replace platinum contact materials. 3.

Rhenium Alloys: Pure Tungsten wire and rod

Rhenium Alloys supplies pure Tungsten, and Tungsten alloys – Tungsten-Copper and Tungsten-Rhenium. Tungsten is commonly used in filaments, electric bulbs, electric …