Abstract: The oxidation behaviors of tantalum-tungsten alloy with 10-20% W was investigated between temperature range of 700 to 900 ℃ exposed in air. The kinetics of Ta-W alloy was determined by TG-DTA, the characteristics of oxides were analyzed by SEM, EDS and XRD. The oxidation tes...

The Swedish chemist Anders Ekeberg first extracted element 73 - tantalum - from a mineral in 1802, and tantalum was named after its excellent corrosion resistance in acids [1]. Tantalum has superior corrosion resistance to titanium [2-4], is only affected by strong acidic and alkaline environments,...

0 Introduction Molybdenum belongs to the VIB group of elements, atomic number 42, relative atomic mass 95.95, extra-nuclear electron arrangement [Kr] 4d5 5s1, ionisation energy 7.5 eV, relative density 10.2 g/cm3 , melting point 2622, specific heat 0.28 J/(g -K), thermal conductivity 142.1W/(m -K),...

Niobium-tungsten alloys have good room temperature plasticity and can be processed into plates, rods and various complex profiles; high high-temperature strength and low density compared with other tungsten, molybdenum and tantalum alloys, which makes them refractory metal high-temperature structura...

 Among the existing base materials, Ta10w alloy has high high temperature strength, good mechanical properties, weldability, ductility, corrosion resistance and impact resistance. Melting point 3080℃, but its high-temperature antioxidant performance is poor, in the case of not applying protecti...

In the field of aerospace vehicle research and development and manufacturing, structurally complex components are extremely difficult to process in the traditional way, and the productivity and yield are low and the cost is high, and even overly complex components cannot be processed. With the rapid...

0 IntroductionWith the continuous development of China's aerospace and missile weapons field, the surface of the material to meet the high-temperature mechanical properties, good thermal corrosion performance and resistance to high-temperature oxidation performance of high-temperature coating requir...

The advantage of additive manufacturing technology (AM) in the field of orthopedic implants is that it can facilitate the creation of anatomically matched devices and surgical instruments by using the patient's own medical imaging data. Another advantage is the ease of manufacturing complex geometri...

3D printing technology is an additive manufacturing technology that can quickly reach high temperatures so that the sample reaches the sintering temperature. It is not limited by the original shape of the mold. It can prepare parts with complex shapes with high processing accuracy and avoid subseque...

Abstract: Compared with other kinds of high-temperature alloys, high-temperature niobium alloy has the advantages of low density, high temperature (600 ~ 1600 ℃) high specific strength, excellent hot and cold forming properties, good welding performance, etc., can be processed and formed into thin-w...

The application of tungsten and tantalum in the electric lighting industry and the field of capacitors and electrical appliances has opened a new era of the application of refractory metal engineering materials. As a typical refractory metal, tungsten (melting point is 3410℃) has excellent high-temp...

Porous tantalum is a foamy porous metallic material with a similar pore structure to human bone. Compared with other medical metal materials, porous tantalum has high volumetric porosity, low modulus of elasticity and high surface friction coefficient, which is an ideal bone replacement material [1]...