【摘要】 采用 LAS 3000表面分析系统研究了离子镀 Ni-Cr 合金膜300℃的氧化行为。结果表明,Fe,Cr,Al,被氧化,形成 Cr₂O₃,Fe₂O₃和 Al₂O₃等氧化物,Ni 基本上未被氧化。对于不同的氧化时间,氧化层成分的变化规律基本一致,氧化过程遵从对数规律。形成的氧化膜薄且致密,氧化速度缓慢,有较好的抗氧化性。更多还原

【Abstract】 The oxidation behaviorr of ion plated Ni-Cr alloy film at 300℃ wasinvestigated by using LAS 3000 surface analysis system.The resultsshowed that EB ion plated Ni-Cr alloy film was oxidized at 300℃.Theoxide of Fe,Cr,Al formed during oxidation,were Cr₂O₃,Fe₂O₃ and Al₂O₃but oxide of Ni was not found.The composition variation of oxide layer fordifferent oxidation durations follow a similar rule.In all cases,there existsan oxygen concentration peak in composition profile of Oxide layer.Thereis a transitional zone between oxide layer and alloy film.The oxide layerthickness increases,logarithmically with oxidation time.A logarithmic ratelaw was obtained.The ion plated Ni-Cr alloy film has very dense oxidelayer and good oxidation resistance In the summary,Ni-Cr alloy film withthickness of several microns can be used as an oxidation resistant protectivefilm in temperature range about 300℃更多还原