ODS-alloy of molybdenum, silicon and boron
A boron alloy and alloy technology, applied in the field of molybdenum-silicon-boron alloy, can solve the problems of difficult component forming, limited application, low fracture toughness, etc.
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Embodiment 1
[0014] The average particle size measured by the Fisher method is 0.5% by weight of yttrium oxide of 0.8 μm, 96.5% by weight of molybdenum with a particle size of 4.12 μm, 3.1% by weight of silicon with a particle size of 4.41 μm, and a particle size of 0.92 μm boron 1.14 wt% mixed and then mechanically fused. The mechanofusion is carried out in an attritor in the presence of hydrogen. The volume of the ultrafine attritor is 50 liters, and iron-chromium-nickel alloy balls with a mass of 100 kilograms and a diameter of 9 mm are used. Grinding time 10 hours. After mechanical fusion, only molybdenum and yttrium oxide (Y 2 o 3 ). The powder is then introduced into a container made of molybdenum-based alloy. The container is evacuated and welded closed in a vacuum-tight manner. The container and powder are heated in an indirect furnace to a temperature of 1500°C and densified by extrusion. The extrusion ratio was 1:6. The extruded semi-finished products prepared by the abov...
Embodiment 2
[0016] Material
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