The application of 90WMoNiFe alloy in the EAST (Experimental Advanced Superconducting Tokamak) device is mainly reflected in its manufacturing material as a key component. The EAST device is a fully superconducting tokamak nuclear fusion experimental device designed to simulate the nuclear fusion process inside the sun. In this complex and extreme experimental environment, 90WMoNiFe alloy plays an indispensable role due to its unique physical and chemical properties.
First, 90WMoNiFe alloy is widely used in parts of EAST devices that directly face high-temperature plasma, such as the first wall and divertor. These components need to withstand extremely high temperatures and intense particle flow impacts, and the excellent high temperature resistance and radiation resistance of 90WMoNiFe alloy enable it to maintain structural stability and integrity under such extreme conditions.
Secondly, since the EAST device generates a large amount of heat during operation, thermal management becomes an important challenge. 90WMoNiFe alloy is used to manufacture thermal structural components such as heat shields and support structures due to its good thermal conductivity and thermal stability. These components effectively conduct heat away from critical areas, preventing equipment from overheating and ensuring stable experiments.
In addition, 90WMoNiFe alloys are also used in the manufacture of neutron shielding and radiation protection materials. Nuclear fusion reactions produce large amounts of neutrons and other radiation, posing potential threats to experimental equipment and personnel. The alloy’s high density and good radiation protection properties make it ideal for reducing damage to equipment and personnel from neutrons and other radiation.
It should be noted that with the upgrade of the EAST device and the deepening of nuclear fusion research, the requirements for material performance are also constantly increasing. Therefore, the application of 90WMoNiFe alloy in the EAST device may be continuously optimized and improved based on experimental needs and technological development.
To sum up, 90WMoNiFe alloy is used as a manufacturing material for key components in the EAST device. It plays a variety of important roles such as high temperature resistance, radiation resistance, thermal conductivity, neutron shielding and radiation protection, etc., which provides the basis for the successful conduct of nuclear fusion experiments. Provides strong protection.
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