【摘要】 研究了表面处理喷丸对Cr含量为9 mass%和19 mass%的Fe-Cr合金在通过600℃~770℃温度区间高温水蒸气氧化行为的影响.结果表明,喷丸工艺可降低Fe-Cr合金在高温水蒸气中的氧化速率,提高其抗高温水蒸氧化能力.对9 mass%Cr含量的Fe-Cr合金,喷丸并没有改变氧化层结构,仍为Fe氧化物;对19 mass%Cr含量的Fe-Cr合金,喷丸促进了Cr向外扩散,形成了Cr氧化物.更多还原

【Abstract】 Fe-Cr alloys with two different Cr content,9% Cr and 19% Cr,were shot blasted and then oxidized at 600℃～770℃ in water vapor.The results show that shot blasting can decrease the oxidation rate and improve the oxidation resistantce.For the 9% Cr alloy,shot blasting can not change the oxide scale structure,which is oxide scale of iron.For the 19% Cr alloy,shot blasting promotes the outer diffusion of Cr,and changes the oxide scale from iron oxide to chromium oxide.更多还原