Ultrahigh-strength steel with near net shaping function and preparation method thereof
A technology of ultra-high-strength steel and near-net shape, which is applied in the field of high-strength steel manufacturing. It can solve the problems of reduced mold life, affecting the surface quality of parts, and high forming load, and achieves enhanced processing performance, excellent near-net shape, and excellent mechanical properties. Effect
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Embodiment 1
[0027] like figure 1 As shown, a kind of ultra-high-strength steel with near-net shape, according to the required requirements of ultra-high-strength steel with near-net shape, the preparation of ultra-high-strength steel with near-net shape includes the following mass percentages (wt.%) The components of:
[0028]
[0029] A method for preparing ultra-high-strength steel with near-net shape, the specific steps are as follows:
[0030] S1. Ingredients: weigh ingredients according to the above ratio;
[0031] S2. Alloy smelting: put the C, P, S, Si, B, Cr, Ti, Al and Fe elements weighed in step 1 into the crucible for vacuum induction melting. After the added elements are completely dissolved, start the magnetic stirring And continue smelting for 15 minutes; then stop heating for 10 seconds, then add Mn and Nb elements into the melt and continue heating for 10 minutes. Then stop heating, let the liquid alloy cool with the furnace, and pour it into the ingot mold when the ...
Embodiment 2
[0036] like figure 1 As shown, a kind of ultra-high-strength steel with near-net shape, according to the required requirements of ultra-high-strength steel with near-net shape, the preparation of ultra-high-strength steel with near-net shape includes the following mass percentages (wt.%) The components of:
[0037]
[0038] A method for preparing ultra-high-strength steel with near-net shape, the specific steps are as follows:
[0039] S1. Ingredients: weigh ingredients according to the above ratio;
[0040] S2. Alloy smelting: put the C, P, S, Si, B, Cr, Ti, Al and Fe elements weighed in step 1 into the crucible for vacuum induction melting. After the added elements are completely dissolved, start the magnetic stirring And continue smelting for 18 minutes; then stop heating for 15 seconds, then add Mn and Nb elements into the melt and continue heating for 15 minutes. Then stop heating, let the liquid alloy cool with the furnace, and pour it into the ingot mold to form a...
Embodiment 3
[0045] like figure 1 As shown, a kind of ultra-high-strength steel with near-net shape, according to the required requirements of ultra-high-strength steel with near-net shape, the preparation of ultra-high-strength steel with near-net shape includes the following mass percentage (wt.%) The components of:
[0046]
[0047] A method for preparing ultra-high-strength steel with near-net shape, the specific steps are as follows:
[0048] S1. Ingredients: weigh ingredients according to the above ratio;
[0049] S2. Alloy smelting: put the C, P, S, Si, B, Cr, Ti, Al and Fe elements weighed in step 1 into the crucible for vacuum induction melting. After the added elements are completely dissolved, start the magnetic stirring And continue smelting for 20 minutes; then stop heating for 20 seconds, then add Mn and Nb elements into the melt and continue heating for 20 minutes. Then stop heating, let the liquid alloy cool with the furnace, and pour it into the ingot mold when the t...
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