Refractory metals are widely used in many fields such as aerospace, defense and military and nuclear power industries due to their high melting points, excellent high temperature resistance, corrosion resistance and radiation resistance [1]. The application of tungsten and tantalum in the electric l...

1 Introduction Refractory metals such as tantalum (Ta) and tungsten (W) and their alloys have excellent physical and chemical properties such as high density, high melting point, good processing performance and resistance to molten metal corrosion. They are widely used in the fields of electronics,...

Molybdenum has high melting point, low expansion coefficient, low creep rate, high thermal conductivity and excellent electrical conductivity. It is a high-value refractory rare metal, so it is an ideal material widely used in high-temperature fields. However, the recrystallization temperature of pu...

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...

The process test was carried out to explore the process parameters of electron beam welding of Nb521 material and the mechanical properties of welds at different temperatures, to obtain the welding processability evaluation of the material and accumulate data for the engineering application of the m...

Nb521 alloy is a new type of niobium-tungsten alloy, the nominal composition of Nb-5W-2Mo-1Zr, with a high melting point (2630 ℃), moderate density 8.9g/cm3), high-temperature strength (1600 ℃, Rm ≥ 100MPa), machining and welding performance and other advantages ［1,2］, is expected to replace C1...

Ta-W alloy has high high temperature strength, good ductility, weldability and excellent corrosion resistance. It is suitable for working environments such as high temperature, high pressure and corrosion resistance. It is widely used in chemical industry, aerospace, atomic energy industry and high...

Tantalum is widely used in the field of medical implant materials due to its excellent biocompatibility, corrosion resistance and good mechanical properties [1-2]. Among them, the shape of porous tantalum is similar to the structure of human bone trabeculae, which is known as trabecular metal, and i...

Ta10W is an important member of the tantalum-tungsten alloy family, its melting point is as high as 3080 ℃, the density of 16.78 ~ 16.90g/cm3, has a very good room temperature and high temperature mechanical properties, at a high temperature of 2,000 ℃, its tensile strength can still reach 100MPa, w...

Niobium and niobium alloys (including Nb521 alloy) have the characteristics of high melting point, low density, excellent high-temperature strength and specific strength, good weldability and excellent corrosion resistance, and have broad application prospects in the fields of aviation and aerospace...

Tantalum and tantalum alloys have the characteristics of high density, high melting point, corrosion resistance, excellent high temperature strength, good processability, etc., and are widely used in electronics, chemical industry, aerospace, weapons and equipment and other fields. Tantalum is a ref...

Refractory metal tungsten and its alloys have excellent properties such as high melting point, high hardness, high temperature strength, high modulus of elasticity, low coefficient of thermal expansion, good electrical conductivity and corrosion resistance, and they are widely used in cutting-edge f...