【摘要】 ：研究了稀土Ｙ离子注入对ＦｅＣｒ，ＦｅＣｒＡｌ及ＮｉＣｒ合金高温抗氧化性能的影响。结果表明，对于主要形成Ｃｒ２Ｏ３膜的ＦｅＣｒ和ＮｉＣｒ合金，通过离子注入Ｙ可以明显提高其高温抗氧化性能，但对形成Ａｌ２Ｏ３膜的ＦｅＣｒＡｌ合金，离子注入对合金抗氧化性能没有影响，添加稀土Ｙ则使ＦｅＣｒＡｌ合金抗氧化性能大大提高。分析了氧化前、后氧化膜结构变化，认为早期形成的Ｙ２Ｏ３膜对高温氧化时金属离子的扩散有不同的影响更多还原

【Abstract】 A study has been made of the influence of the surface ion implantation of yttrium upon the high temperature oxidation behaviour of FeCr,FeCrAl and NiCr alloys.It has been shown that the high temperature oxidation resistance was increased by Y ion implantation for FeCr and NiCr alloys formed mainly Cr2O3 film.However,for the alloy of FeCrAl formed Al2O3 film,the high temperature oxidation resistance did not change with Y ion implantation,but was increased obviously by Y addition.Auger and Xray diffraction analyses were carried out for the samples before and after oxidation.It is considered that the Y2O3 film formed before oxidation played a different part in high temperature oxidation for different metallic ions.更多还原