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对含不同合金元素Ｍｏ、Ｗ和Ｂ的高Ｃｒ－Ｎｉ铸铁在大气中进行了８００℃及９５０℃的恒温氧化试验。结果表明，经Ｍｏ、Ｗ和Ｂ适量合金化后的碳化物在高温下的化学稳定性有不同程度的提高。从原子间结合力和合金热力学的角度讨论了合金元素对（Ｃｒ，Ｆｅ）—７Ｃ—３型碳化物高温化学稳定性的影响
High-temperature Cr-Ni cast iron with different alloying elements Mo, W and B was subjected to a constant temperature oxidation test at 800 ° C and 950 ° C in the atmosphere. The results show that the chemical stability of carbides after the appropriate amount of Mo, W and B alloying improves at different temperatures. The effects of alloying elements on the chemical stability of (Cr, Fe) -7C-3 carbides at high temperature were discussed from the perspective of the bonding force between atoms and the alloy thermodynamics