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研究了中等含量的钛（w=4％）、锰（w=9％）或铌（w=8％）对Fe－25Cr合金预氧化层在高温硫化环境中保护性的影响．实验结果发现：所有合金在1000℃，105PaO2中经不同时间预氧化后的硫化均出现了增重缓慢的保护性硫化阶段，之后试样迅速增重．加w（Ti）＝4％使合金形成了略厚的TiO和TiCR2O4混合氧化层，使保护性阶段加长了约1倍；而加W（Mn=9％的合金却形成了多孔的以MnO和MnCR2O4尖晶石相为主的混合氧化层，保护性较差。加铌对Fe－25Cr氧化层的组成及预氧化后的硫化动力学影响甚微．
The effect of moderate contents of titanium (w = 4%), manganese (w = 9%) or niobium (w = 8%) on the protective properties of the preoxidized Fe-25Cr alloy in high temperature vulcanization was investigated. The experimental results show that all the alloys have a slow protective protective vulcanization after vulcanization at all temperatures of 1000 Pa and 105 PaO2 at different times. After that, the specimens rapidly increase in weight. Adding Ti (Ti) = 4% resulted in a slightly thick mixed oxide layer of TiO and TiCR2O4, which increased the protective phase by about 1 time. However, adding W (Mn = 9%) formed porous MnO and MnCR2O4 spinel-based mixed oxide layer is less protective, and niobium has little effect on the composition of the Fe-25Cr oxide layer and the vulcanization kinetics after the pre-oxidation.