High-toughness medium entropy high temperature alloy and preparing method thereof
A high-strength toughness, high-temperature alloy technology, applied in the field of medium-entropy high-temperature alloys, can solve problems such as insufficient strength, achieve the effects of less internal defects, improve oxidation resistance, and improve thermal processing performance
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Embodiment 1
[0041] According to the ingredients shown in alloys 1 to 3 in Table 1, weigh Cr, Co, Ni, Al, Ti, Ta, B, Zr, C, RE raw materials, put them into a 50kg vacuum induction melting furnace for melting, and refine at high temperature For 15 minutes, the refining temperature was 1650°C, and cast into an alloy ingot; the alloy ingot was forged into an electrode rod at a temperature of 800°C, and the forging ratio was 3. Then remelt in a vacuum electric arc furnace to crystallize into a remelted alloy ingot; the remelted alloy ingot is forged at a forging temperature of 800°C, and the blank is forged into an alloy billet 1 with a forging ratio of 3. After surface grinding and defect detection, alloy billet 1 was forged at 800°C to alloy billet 2 with a forging ratio of 5. Round into a square billet 3, the alloy billet 3 is tempered at 800°C for 30 minutes, and rounded into an alloy rod at a forging ratio of 1. The alloy bar is firstly subjected to solid solution heat treatment. The pro...
Embodiment 2
[0045] According to the ingredients shown in the alloys 4 to 6 in Table 1, weigh Cr, Co, Ni, Al, Ti, Ta, B, Zr, C, RE raw materials, put them into a 50kg vacuum induction melting furnace for melting, and refine at high temperature For 30 minutes, the refining temperature was 1550°C, and cast into alloy ingots; the alloy ingots were forged into electrode rods at a temperature of 1250°C, and the forging ratio was 5. Then remelt in a vacuum electric arc furnace to crystallize into a remelted alloy ingot; the remelted alloy ingot is forged at a forging temperature of 1250°C, and the blank is forged into an alloy billet 1 with a forging ratio of 5. After surface grinding and defect detection, alloy billet 1 was forged at 1250°C to alloy billet 2 with a forging ratio of 8. Alloy billet 2 was then tempered at 1250°C for 25 minutes. Round into a square billet 3, the alloy billet 3 is tempered at 1250°C for 25 minutes, and rounded into an alloy rod at a forging ratio of 5. The alloy b...
Embodiment 3
[0049] According to the ingredients shown in alloys 7-9 in Table 1, weigh Cr, Co, Ni, Al, Ti, Ta, B, Zr, C, RE raw materials, put them into a 50kg vacuum induction melting furnace for melting, and refine at high temperature For 25 minutes, the refining temperature was 1600°C, and cast into an alloy ingot; the alloy ingot was forged into an electrode rod at a temperature of 1150°C, and the forging ratio was 4. Then remelt in a vacuum electric arc furnace to crystallize into a remelted alloy ingot; the remelted alloy ingot is forged at a forging temperature of 1150°C, and the blank is forged into an alloy billet 1 with a forging ratio of 4. After surface grinding and flaw detection, alloy billet 1 was forged at 1150°C to alloy billet 2 with a forging ratio of 6. Alloy billet 2 was then tempered at 1150°C for 28 minutes. Round into a square billet 3, the alloy billet 3 is tempered at 1150°C for 28 minutes, and rounded into an alloy rod at a forging ratio of 3. The alloy bar is f...
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