The recrystallization temperature of lanthanum-doped molybdenum wire is higher than pure molybdenum wire, and it is because small amount of La2O3 can improve the properties and structure of molybdenum wire. Besides, La2O3 second phase effect can also increase the room temperature strength of the molybdenum wire and improve the room temperature brittleness after recrystallization. Recrystallization Temperature Comparison: The microstructure of pure molybdenum wire was obviously broadened at 900 ℃ and recrystallized at 1000 ℃. With the annealing temperature increase, recrystallization…

Molybdenum wire has good properties such as high strength, high wear resistance, high melting point, low coefficient of expansion, good thermal conductivity and thermal conductivity, but its shortcomings such as room temperature brittleness and high plastic-brittle transition temperature greatly affect its processing and application. The lanthanum-doped molybdenum wire doped with a small amount of lanthanum oxide not only improved the structure and properties of molybdenum wire, but also strengthened the strength and toughness. Lanthanum-doped molybdenum wire preparation processes are as…