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发明公开
CN104878304A 喷射成形耐磨耐蚀工具钢 有权 转让

喷射成形耐磨耐蚀工具钢
摘要：
本发明涉及一种喷射成形耐磨耐蚀工具钢，其化学组分按质量百分比计包括：C：2.0%-2.5%，W：0.1%-1.0%，Mo:≤1.8%，Cr：18.3%-22.0%，V：3.5%-5.8%，Nb：0.2%-1.9%，Co：0.15%-0.5%，Si：≤1.0%，Mn：0.2%-1.0%，N：0.05%-0.5%，余量为铁和杂质；所述喷射成形耐磨耐蚀工具钢的碳化物组成为MC碳化物和M7C3碳化物，其中MC碳化物的类型为（V、Nb）（C、N）。制得的工具钢碳化物尺寸细小，分布均匀，具备优异的综合性能，尤其是极佳的耐磨性能和耐蚀性能。本发明采用喷射成形工艺制备，相比粉末冶金工艺，有利于降低合金整体成本。
摘要（英）：

The invention relates to wear resistant and corrosion resistant tool steel for spray forming. The wear resistant and corrosion resistant tool steel comprises the following chemical components by weight percent: 2.0-2.5% of C, 0.1-1.0% of W, not larger than 1.8% of Mo, 18.3-22.0% of Cr, 3.5-5.8% of V, 0.2-1.9% of Nb, 0.15-0.5% of Co, not larger than 1.0% of Si, 0.2-1.0% of Mn, 0.05-0.5% of N and the balance of ferrum and impurities; the carbide of the wear resistant and corrosion resistant tool steel for spray forming is composed of an MC carbide and an M7C3 carbide, wherein the type of the MC carbide is (V, Nb) (C, N). The produced tool steel carbide is small in size, uniform in distribution, excellent in comprehensive performance and is particularly excellent in wear resistance and corrosion resistance. Compared with the powder metallurgy process, the tool steel provided by the invention is prepared by the spray forming process, which is conducive to reduce the overall cost of an alloy.

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