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研究了600-800℃温度范围内,钨(～6％),铬(5～10％),合金元素对α-铁抗氧化性的影响。钨提高铁的抗氧化性,铬的加入进一步提高铁的抗氧化性,且温度愈高,作用愈显著。金相、X光分析表明:钨、铬合金元素对α-铁抗氧化性的影响是由于在氧化物内层形成了含钨、含铬或含钨铬的氧化物,减慢或阻止氧化亚铁的形成。
The effects of tungsten (~ 6%), chromium (5 ~ 10%) and alloying elements on the oxidation resistance of α-iron were studied in the temperature range of 600-800 ℃. Tungsten to improve the oxidation resistance of iron, chromium added to further improve the oxidation resistance of iron, and the higher the temperature, the more significant role. Metallographic and X-ray analyzes showed that the effect of tungsten and chromium alloying elements on the α-iron oxidation resistance is due to the formation of oxides containing tungsten, chromium or tungsten containing chromium in the oxide inner layer, slowing or stopping the oxidation of The formation of iron.