Электронная почта: [email protected]
20221019 · Low-density high-temperature alloys are sought for applications in the aerospace and weapons industries. For example, advanced aero-engines and gas
contact2023316 · The present study investigated existing and potential approaches for hot cracking analysis of cast alloys and showed a promising and very applicable new
contactNiobium alloys are used in a variety of high-temperature applications ranging from light bulbs to rocket engines and nuclear reactors. The unique physical and chemical properties of
contact2022131 · Niobium was consumed mostly in the form of ferroniobium by the steel industry and as niobium alloys and metal by the aerospace industry. In 2021, there was
contactThe niobium and niobium alloy films prepared were anodized at a constant current density of generally 50 A m −2 to selected voltages with and without current decay in stirred 0.1 mol
contactNiobium’s critical temperature for superconductivity is 9.3K – the highest critical temperature of any elemental superconductor. 5 Niobium has therefore been the natural choice for
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
contact20211114 · The most typical niobium titanium alloy is titanium content 66% (approx. 50% wt%). Niobium titanium alloy is an important alloyed superconductor material. Its
contact2019220 · All niobium-based alloys are solid solution strengthened alloys. The most commonly used alloying elements are zirconium, titanium, hafnium, tantalum and
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,
contact19931024 · Niobium alloys are used in a variety of high-temperature applications ranging from light bulbs to rocket engines and nuclear reactors. The unique physical and chemical properties of these alloys have often dictated that only niobium alloys could fulfill certain application requirements. Compared to other refractory metals, niobium alloys
contact2022131 · Niobium was consumed mostly in the form of ferroniobium by the steel industry and as niobium alloys and metal by the aerospace industry. In 2021, there was an increase in apparent consumption of niobium for high-strength low-alloy steel and superalloy applications. Major end-use distribution of domestic niobium consumption
contactNiobium alloys are used in a variety of high-temperature applications ranging from light bulbs to rocket engines and nuclear reactors. The unique physical and chemical properties of these alloys have often dictated that only niobium alloys could fulfill certain application requirements. Compared to other refractory metals, niobium alloys have ...
contact2023316 · The present study investigated existing and potential approaches for hot cracking analysis of cast alloys and showed a promising and very applicable new specimen for high alloyed steels. The reliability of this specimen has been demonstrated by adding niobium to alloy HH (ASTM A297), or alloy 1.4837 (ISO 11973). Niobium shows a very
contact20201229 · The article shows that during plasma-diffusion deposition, a multilayer coating was formed on the surface of the niobium alloy. A highly porous plasma-sprayed layer of molybdenum silicide has a ...
contactThe effects of additions of those elements which are near neighbors in the periodic table on the mechanical properties of niobium have been studied. These effects vary widely and follow no simple general rule. Some of the most important observations are as follows: 1. (1) At low temperatures alloy additions increase strength due to normal solid ...
contact2020820 · Niobium alloys have also been used in the Apollo 15 CSM (figure 14), a component of the Apollo space prog ram. In this . application a special coating was used to prevent the Nio bium alloy from ...
contact2019122 · OF NIOBIUM ALLOYS C. Craig Wojcik Wah Chang An Allegheny Technologies Company 1600 Old Salem Road, NE Albany, OR 97321-4548, U.S.A. Abstract Of all the refractory metals, which have melting points above 20000 C, niobium alloys are the most fabricable and lowest density. Niobium alloys are utilized in applications ranging
contact1 · 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 ...
contact2021312 · Niobium is an important material for high temperature applications, in space, in superconductors or in chemical process constructions. Laser-based powder bed fusion of niobium (PBF-LB/M/Nb) offers new opportunities in design, though it is still an expensive technique. The build-up rate is an important factor for economical
contact20221019 · Here we report a strategy to design a novel lightweight and thermally-stable Nb alloy by combining the notion of eutectics and refractory carbide. The resulting Nb2MoWC0.96 eutectic alloy exhibits ...
contact2023316 · The present study investigated existing and potential approaches for hot cracking analysis of cast alloys and showed a promising and very applicable new specimen for high alloyed steels. The reliability of this specimen has been demonstrated by adding niobium to alloy HH (ASTM A297), or alloy 1.4837 (ISO 11973). Niobium shows a very
contact201711 · The focus of this research work is to study the effect of cutting parameters – speed, feed and depth of cut on the machinability of Niobium C-103 under dry machining condition using response surface methodology 1 (RSM). Niobium based superalloys are an unusual class of metallic materials with an exceptional combination of high temperature
contact2022131 · Niobium was consumed mostly in the form of ferroniobium by the steel industry and as niobium alloys and metal by the aerospace industry. In 2021, there was an increase in apparent consumption of niobium for high-strength low-alloy steel and superalloy applications. Major end-use distribution of domestic niobium consumption
contact202086 · The creep behavior of the niobium alloy C-103 (Nb-1OHf-1Ti-0.7Zr) has been studied as a function of stress, temperature, and grain size for test times to 19 OOO hr. Over the temperature range 827" to 1204" C and the stress range 6.89 to 138 MPa, only tertiary (accelerating) creep was observed. The creep strain
contact20201229 · The article shows that during plasma-diffusion deposition, a multilayer coating was formed on the surface of the niobium alloy. A highly porous plasma-sprayed layer of molybdenum silicide has a ...
contact2021830 · QuesTek Innovations will apply computational materials design, additive manufacturing (AM), coating technology, and turbine design/manufacturing to develop a comprehensive solution for a next-generation turbine blade alloy and coating system capable of sustained operation at 1300°C. QuesTek will design a niobium (Nb)-based
contact2023316 · The present study investigated existing and potential approaches for hot cracking analysis of cast alloys and showed a promising and very applicable new specimen for high alloyed steels. The reliability of this specimen has been demonstrated by adding niobium to alloy HH (ASTM A297), or alloy 1.4837 (ISO 11973). Niobium shows a very
contact2022131 · Niobium was consumed mostly in the form of ferroniobium by the steel industry and as niobium alloys and metal by the aerospace industry. In 2021, there was an increase in apparent consumption of niobium for high-strength low-alloy steel and superalloy applications. Major end-use distribution of domestic niobium consumption
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
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-XTi-Zr ternary alloy(x = 20wt.%, 3
contact2021830 · QuesTek Innovations will apply computational materials design, additive manufacturing (AM), coating technology, and turbine design/manufacturing to develop a comprehensive solution for a next-generation turbine blade alloy and coating system capable of sustained operation at 1300°C. QuesTek will design a niobium (Nb)-based
contact201235 · effectiveness of niobium and tantalum in various nickel-base superalloys and iron- nickel-base superalloy INCONEL 718,. This work not only shows the significance of ... resistance and alloy stability. Both elements are bee metals, and are highly misfitting in the fee Ni lattice; consequently giving rise to their well deserved ...
contact202086 · The PNC-11 alloy used in this study was received from the Oak Ridge National Laboratory (ORNL) in the form of l-mm thick machined tensile creep specimens. The material contained 0.90 wt % ZF and 0.063 wt % C, slightly below the PNC-II alloy minimum specification of 0.075 wt % C. Unfortunately, a detailed proc-
contactNiobium Alloys. Commercial application of niobium is dominated by its use as an alloying element in steels. Almost 75% of all niobium metal is used as minor alloying additions in low-alloy steel. Another 20 to 25% is used as alloy additions in nickel-base superalloys and heat-resisting steels. Only 1 to 2% of all niobium is used in the form of ...
contact： Oxidation behavior of Zr-10Nb-10Ti and Zr-10Nb-20Ti (compositions are in atomic percent) alloys has been investigated in air between 300 and 700°C. Higher Ti content in the alloy enhances the oxidation resistance.
contact1 · 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
contact