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晶粒细化对Fe-Cr、Ni-Cr合金氧化行为的影响

, PP. 384-386

Keywords: 机械合金化,Fe-Cr,Ni-Cr,氧化

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Abstract:

采用机械合金化法制备块体纳米晶Fe-20Cr、Ni-20Cr合金,并研究其在1000℃空气中的氧化行为.结果表明由于晶粒细化,加快了Cr向合金表面的扩散速度,增加了活泼组元Cr氧化物的形核位置,降低了Fe-Cr、Ni-Cr合金形成单一连续Cr2O3氧化膜所需的临界Cr浓度,故机械合金化Fe-20Cr、Ni-20Cr合金氧化后形成了单一的Cr2O3外氧化膜,且氧化速率明显小于普通晶粒大小的熔炼Fe-20Cr、Ni-20Cr合金.

References

[1]  付付广艳,王崇琳,牛焱,等.机械合金化Cu-Cr合金在0.1MPa纯氧气中的氧化[J].中国腐蚀与防护学报,2000,20(5):269.
[2]  LLi Yuanshi,Niu Yan,Wu Weitao.Effect of grain size reduc-tion on high temperature oxidation of binary two-phase alloys[J].Transactions of Nonferrous Metals Society of China,2001,11(5):853.
[3]  付付广艳,牛焱,吴维.不同方法制备的Cu-Cr合金的氧化行为[J].金属学报,2003,39(3):297.
[4]  宋宋尽霞,付广艳,牛焱.机械合金化Ag-Cr合金在0.1MPa纯氧气中的氧化[J].金属学报,2003,39(9):995.
[5]  FFU guangyan,Niu Yan,Gesmundo F.Microstructural effectson the high temperature oxidation of two-phase Cu-Cr al-loys in 1atm O2[J].Corrosion Science,2003,45(3):559.
[6]  LLou Hanyi,Wang Fuhui,Xia Bangjie,et al.High-temperatureoxidation resistance of sputtered micro-grain superalloy K38G[J].Oxid Met,1992,38(3/4):299.
[7]  WWang Fuhui,Young D J.Effect of Nanocrystallization on thecorrosion resistance of K38G superalloy in CO+CO2atmo-spheres[J].Oxid Met,1997,48(5/6):497.
[8]  付付广艳,管恒荣,牛焱,等.溅射Cu-Cr合金微晶涂层的氧化[J].金属学报,2000,36:281.
[9]  GGesmundo F,Niu Y,Viani F.The transition from the forma-tion of mixed scales to the selective oxidation of the most-re-active component in the corrosion of single and two-phase bi-nary alloys[J].Oxid.Met,1993,40:373.
[10]  R Herchl,N N Khoi,T Homma,et al.Short-circuit diffusionin the growth of nickel oxidation scale on nickel crystal faces[J].Oxid.Met,1972,4:35.
[11]  Wagner C.Theoretical analysis of the diffusion processes deter-mining the oxidation rate of alloys[J].Electrochem J.Soc.,1952,99:369.[

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