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20221019 · Low-density high-temperature alloys are sought for applications in the aerospace and weapons industries. For example, advanced aero-engines and gas turbines require an operating temperature higher than 1273 K. Pure Nb has a high melting point
contactThe main characteristics of niobium-bearing zirconium alloys used for fabricating fuel element claddings of pressurized water reactors are considered. It is shown that the high corrosion and radiation resistance of zirconium parts is provided by the chemical
contactNiobium (Nb), Titanium (Ti), and Zirconium (Zr) have attracted much attention as implant materials due to it's excellent mechanical properties and biocompatibility. However, little attention has been paid to high Nb-containing biomedical alloys. Here, the 50 wt.%Nb
contact2021525 · Niobium-Zirconium alloys (Nb-1Zr) and PWC-11 alloys (Nb-1Zr-0.1C) have been used in the SP-100 design as basic materials for lithium coolant boundaries, reactor shells and parts inside fuel casings. Nb-1Zr alloy has 50% higher yield strength than pure
contact2019220 · All niobium-based alloys are solid solution strengthened alloys. The most commonly used alloying elements are zirconium, titanium, hafnium, tantalum and tungsten. The alloy Nb-1Zr can be used in nuclear applications because it has a low thermal
contactNiobium Zirconium is one of numerous high purity alloys manufactured by American Elements. As a master alloy, niobium-zirconium can be used for grain refining, hardening, and improving alloy performance by enhancing properties such as ductility and
contact2015111 · Niobium and its alloy exhibit properties that provided unique technological capabilities among refractory metals. It can be used as hardening element in cast version and also it improves ...
contact20211114 · The most typical niobium titanium alloy is titanium content 66% (approx. 50% wt%). Niobium titanium alloy is an important alloyed superconductor material. Its superconductive transition temperature is 8K to 10K. If other elements are added into the
contactNiobium-steel alloys are frequently used in automotive sheet steel and oil and gas pipelines. * Superalloys. Superalloys are high-performance alloys that exhibit exceptional mechanical strength, thermal creep resistance,
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contact201241 · The material tested in this study was a NbZr alloy with a chemical composition of 2.33 wt.% Zr, 0.29 wt.% Ta, 76 ppm H 2, 44 ppm O 2, 63 ppm C, 5 ppm Fe and balance Nb. The NbZr alloy was originally obtained in the form of a 30 mm thick hot-rolled plate with a CG microstructure, and then processed by equal-channel angular
contactThe present study reports on microstructural evolution upon static annealing treatment and elevated-temperature low-cycle fatigue (LCF) of an ultrafine-grained (UFG) body-centered cubic (bcc) niobium–zirconium (NbZr) alloy, processed by equal channel angular processing (ECAP) at room temperature.
contact20221027 · To understand the nanomechanical behaviors of the Nb-based alloys with Zr addition at room/high temperature, the molecular dynamics simulations of nanoindentation are conducted. In this work, the load-unload displacement curve, hardness, and dislocation characteristics of Nb-Zr alloys with varying Zr content ranging from 0 to 5
contact202241 · The oxidation behavior of 56Nb–16Si- (20-x)Ti–3Cr–3Al-2Hf-xZr (x = 0, 2, 5, 10, at. %) alloys have been evaluated at 800 °C and 1250 °C, respectively. The following conclusions can be drawn from this study：. (1) The Nb–Si-based alloys exhibit different oxidation behavior at the two elevated temperatures.
contactOxidation of niobium alloys with zirconium in dry oxygen at 550-1000C has been investigated. Oxidation kinetics is satisfactorily described by the parabolic-linear mechanism. Maximum oxidation ...
contactNiobium alloys are also attracting interest for the construction of next-generation nuclear fission reactors. Recent research shows that these materials may be suitable for building structural elements in Generation IV fission reactors thanks to their superlative retention of mechanical strength at very high temperatures. 10.
contact“A highly distorted ultraelastic chemically complex Elinvar alloy”《Nature》。 【】 ，25Co–25Ni–16.67Hf–16.67Ti–16.67Zr（），Co25Ni25(HfTiZr)50。
contact2020725 · The Niobium Alloy Strip and sheets can come in different grades. There are type 1 and 2 specifications. The type 1 is called the reactor grade and has 0.1% maximum impurities, and the type 2 is the commercial grade which allows up to 0.2% impurities. ... Nb1,NbZr,R04200: Standard: ASTM B393-05: Purity: 99.95%:
contactNiobium Zirconium Wire (NbZr Wire) Part Number: TRM-NB008: Standard: ASTM B392: Material: UNS R04261: Density: 8.57 g/cm 3: N iobium-1% zirconium is used in the rocketry and in the nuclear industry. It is
contactRelated Elements. 41 Nb 92.0 Niobium. See more Niobium products. Niobium (atomic symbol: Nb, atomic number: 41) is a Block D, Group 5, Period 5 element with an atomic weight of 92.90638. The number of electrons in each of niobium's shells is 2, 8, 18, 12, 1 and its electron configuration is [Kr] 4d 4 5s 1.
contact20221019 · For example, Nb-Si alloys (i.e. Nb x Mo y W-10Ti-18Si, x = 10 and 20, y = 0,5,10, and 15 in mol.%) consisting of an Nb-rich solid solution phase and a silicide phase exhibited a yield strength of about 400–800 MPa in compression mode at 1670 K, owing to a high-volume fraction (>40%) of the silicide phase [Citation 4, Citation 13].
contact20211013 · Also, niobium quantities, as great as 6.5%, are added to nickel, cobalt, and iron to produce superalloys. APPLICATIONS Capacitors, arc-tube seals of sodium vapor lamps, high voltage wire for receptor modules, nuclear reactors, superconducting magnets. Niobium Refractory Metals and Alloys lb/in3 0.31 gm/cm3 8.57 °F 4527 °C2497
contactThe present study reports on microstructural evolution upon static annealing treatment and elevated-temperature low-cycle fatigue (LCF) of an ultrafine-grained (UFG) body-centered cubic (bcc) niobium–zirconium (NbZr) alloy, processed by equal channel angular processing (ECAP) at room temperature.
contact20221027 · To understand the nanomechanical behaviors of the Nb-based alloys with Zr addition at room/high temperature, the molecular dynamics simulations of nanoindentation are conducted. In this work, the load-unload displacement curve, hardness, and dislocation characteristics of Nb-Zr alloys with varying Zr content ranging from 0 to 5
contact2020725 · The Niobium Alloy Strip and sheets can come in different grades. There are type 1 and 2 specifications. The type 1 is called the reactor grade and has 0.1% maximum impurities, and the type 2 is the commercial grade which allows up to 0.2% impurities. ... Nb1,NbZr,R04200: Standard: ASTM B393-05: Purity: 99.95%:
contactNiobium Zirconium Wire (NbZr Wire) Part Number: TRM-NB008: Standard: ASTM B392: Material: UNS R04261: Density: 8.57 g/cm 3: N iobium-1% zirconium is used in the rocketry and in the nuclear industry. It is
contactAn alloy with 50% Zr oxidizes at a rate of approximates 10, 18, or 25 mg/cm/sup 2/ hr at 1000, 1100, or 1200 deg C, respectively. The oxidation of alloys with 40 and 50% Zr at 1000 and 1100 deg C follows a nearly parabolic rate, which indicates that the oxide film has a protective ability. At 1200 deg C the oxidation rate is linear.
contact202323 · Step 5: Melt the niobium zirconium compound ingot niobium-zirconium, Nb-Zr 90/10 wt% onto electrode, smelt the electrode in consumable electrode vacuum furnace for 5-6h, and cool with argon for
contactNiobium Zirconium (NbZr)-Wire . Molecular Formula: NbZr ; Products Code: WI ; Purity: 99.9%-99.99 % ; Specification: 0.1 mm dia. x Continuous ; Availability: ... Nb-Zr alloy is the most widely used niobium alloy, is a kind of low strength niobium alloy, processing and welding performance is good, mainly used in aerospace, nuclear reactors ...
contact20221019 · For example, Nb-Si alloys (i.e. Nb x Mo y W-10Ti-18Si, x = 10 and 20, y = 0,5,10, and 15 in mol.%) consisting of an Nb-rich solid solution phase and a silicide phase exhibited a yield strength of about 400–800 MPa in compression mode at 1670 K, owing to a high-volume fraction (>40%) of the silicide phase [Citation 4, Citation 13].
contactThe present study reports on microstructural evolution upon static annealing treatment and elevated-temperature low-cycle fatigue (LCF) of an ultrafine-grained (UFG) body-centered cubic (bcc) niobium–zirconium (NbZr) alloy, processed by equal channel angular processing (ECAP) at room temperature.
contact20211013 · Also, niobium quantities, as great as 6.5%, are added to nickel, cobalt, and iron to produce superalloys. APPLICATIONS Capacitors, arc-tube seals of sodium vapor lamps, high voltage wire for receptor modules, nuclear reactors, superconducting magnets. Niobium Refractory Metals and Alloys lb/in3 0.31 gm/cm3 8.57 °F 4527 °C2497
contact20221027 · To understand the nanomechanical behaviors of the Nb-based alloys with Zr addition at room/high temperature, the molecular dynamics simulations of nanoindentation are conducted. In this work, the load-unload displacement curve, hardness, and dislocation characteristics of Nb-Zr alloys with varying Zr content ranging from 0 to 5
contact201934 · HEAs with eutectic microstructure can be obtained by judiciously modifying the alloy compositions. In this study, the effect of Nb addition to FeCoNiCuNb x (x = 0.5, 5, 7.5, 11.6, 15) alloys was studied
contact2019123 · The element with the highest T is niobium (9.2 K) and the highest Tc Commercial superconductors are available , known so far, is 23.6 K for Nb3Ge. based on the two ductile alloys, Nb-Zr and Nb-Ti, although the former has been almost entirely superseded by the latter. A-15 compounds, Nb3Sn and V Ga are also commercially
contact2 · Ultimate tensile strength of Zirconium-Niobium Alloy is about 514 MPa. The ultimate tensile strength is the maximum on the engineering stress-strain curve. This corresponds to the maximum stress that can be
contactIn this article, we will take a look at the 10 important uses of niobium. Uses of Niobium. 1. The Uses of Niobium in the Metal Industry. About 85% to 90% of the world’s niobium is used in iron and steel production in the form of ferroniobium. Adding 0.03% to 0.05% of niobium in the steel can increase the yield strength of the steel by more ...
contact202323 · Step 5: Melt the niobium zirconium compound ingot niobium-zirconium, Nb-Zr 90/10 wt% onto electrode, smelt the electrode in consumable electrode vacuum furnace for 5-6h, and cool with argon for
contactNiobium Zirconium (NbZr)-Wire . Molecular Formula: NbZr ; Products Code: WI ; Purity: 99.9%-99.99 % ; Specification: 0.1 mm dia. x Continuous ; Availability: ... Nb-Zr alloy is the most widely used niobium alloy, is a kind of low strength niobium alloy, processing and welding performance is good, mainly used in aerospace, nuclear reactors ...
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