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稀土能明显地改善电热合金的抗氧化性和延长使用寿命,并为世界各国普遍采用。稀土对耐热钢性能影响的研究,尤其是对抗氧化性能影响的研究虽也不少,但实际应用于工业生产并列入各国标准的含稀土耐热钢号并不普遍。本文研究了稀土对铬钢、铬镍钢及铬镍氮钢等不同类型耐热钢的抗氧化性、高温强度及热塑性等的影响。试验用钢是在高频炉或中频炉
Rare earth can significantly improve the oxidation resistance of the heating alloy and extend the service life, and is widely used in all countries in the world. Rare earth on the performance of heat-resistant steel, especially on the impact of oxidation resistance, although there are many, but actually used in industrial production and included in the national standards of rare earth-containing heat-resistant steel is not common. In this paper, the effects of rare earth on the oxidation resistance, high temperature strength and thermostability of different types of heat-resisting steel such as chrome steel, chrome-nickel steel and chrome-nickel-nitrogen steel were studied. Test steel is in the high-frequency furnace or intermediate frequency furnace