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发明授权
CN101942606B 含氮奥氏体型热作模具钢及其制备方法 有权 转让

含氮奥氏体型热作模具钢及其制备方法
摘要：
本发明涉及一种含氮奥氏体型热作模具钢材料，属合金钢制造技术领域。本发明的热作模具钢的成分及重量百分比为：C：0.3～0.7％，Si：0.5～1.1％，Mn：10.0～15.0％，Cr：2.0～6.0％，Mo：1.5～3.5％，V：0.5～2.0％，P＜0.02％，S＜0.005％，N0.15～0.30％，Fe余量。本发明热作模具钢的制备方法是配料后熔炼、浇铸、电渣重熔，在1220～1250℃高温均匀化；进行粗锻和毛坯锻造，然后在1140～1220℃固溶处理和680～800℃时效处理。本发明的热作模具钢是一种高热稳定性、高强度、高韧性的含氮奥氏体型热作模具钢。
摘要（英）：

The invention relates to a nitrogen alloyed austenitic hot work die steel material, belonging to the technical field of alloy steel manufacturing. The steel comprises the following components by weight: 0.3-0.7% of C, 0.5-1.1% of Si, 10.0-15.0% of Mn, 2.0-6.0% of Cr, 1.5-3.5% of Mo, 0.5-2.0% of V, less than 0.02% of P, less than 0.005% of S, 0.15-0.30% of N and the balance Fe. The preparation method comprises the following steps: smelting after material mixing and casting, electroslag remelting, high temperature homogenizing at 1220-1250 DEG C, rough forging and blank forging, and solid solution treatment at 1140-1220 DEG C and aging treatment at 680-800 DEG C. The nitrogen alloyed austenitic hot work die steel has high stability, strength and tenacity.

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