以Fe-21%(质量分数)Cr为基,分别添加0.05%、0.1%、0.15%、0.2%、0.25%、0.3%、0.35%、0.4%和0.5%(原子分数)的Gd、La或Ce, 研究合金在空气中1073K时的氧化行为.经增重测试、SEM和XRD分析,发现通过添加稀土元素,合金的抗氧化性能得到了改善.当稀土元素含量＞0.15%(原子分数)时,与Fe-21Cr二元合金相比,Fe-21Cr-RE三元合金表现出良好的抗氧化性,其中含0.3%稀土元素的三元合金表现出最好的抗氧化性.各合金优良的抗氧化性与稀土元素对氧的亲和力密切相关.
参考文献
| [1] | Zhu W Z;Deevi S C .[J].Materials Science and Engineering,2003,A348:227-243. |
| [2] | Zhu W Z;Deevi S C .[J].Materials Research Bulletin,2003,38:957-972. |
| [3] | Hindam H;Whittle D P .[J].Oxidation of Metals,1982,18:245-284. |
| [4] | Brylewski T.;Przybylski K.;Morgiel J. .Microstructure of Fe-25Cr/(La, Ca)CrO3 composite interconnector in solid oxide fuel cell operating conditions[J].Materials Chemistry and Physics,2003(2/3):434-437. |
| [5] | Huang K;Hou P Y;Goodenough J B .[J].Materials Research Bulletin,2001,36:81-95. |
| [6] | Oishiu N;Namikawa T;Yamazaki Y .[J].Surface and Coatings Technology,2000,132:58-64. |
| [7] | Teruhisa Horita;Yueping Xiong;Katsuhiko Yamaji .Evaluation of Fe-Cr Alloys as Interconnects for Reduced Operation Temperature SOFCs[J].Journal of the Electrochemical Society,2003(3):A243-A248. |
| [8] | Brylewski T.;Maruyama T.;Przybylski K.;Nanko M. .Application of Fe-16Cr ferritic alloy to interconnector for a solid oxide fuel cell[J].Solid state ionics,2001(2):131-150. |
| [9] | Horita T;Xiong Y;Yamaji K .[J].Journal of Power Sources,2003,118:35-43. |
| [10] | Quadakkers W J;Greiner H;Hansel M et al.[J].Solid State Ionics,1996,91:55-67. |
| [11] | Matsuzaki Y.;Yasuda I. .Electrochemical properties of a SOFC cathode in contact with a chromium-containing alloy separator[J].Solid state ionics,2000(3/4):271-278. |
| [12] | 朱日彰;何业东;齐惠滨.高温腐蚀及耐高温腐蚀材料[M].上海:上海科学技术出版社,2000 |
| [13] | 黄乾尧;李汉康.高温合金[M].北京:冶金工业出版社,2000:4. |
| [14] | Hou P Y;Stringer J .[J].Materials Science and Engineering,1995,A202:1-10. |
| [15] | Whittle D P;Stringer J .[J].Philosophical Transactions of the Royal Society of London,1979,A27:309. |
| [16] | Nagai H;Mitain H .[J].Transactions of the Japan Institute of Metals,1979,20(06):299-310. |
| [17] | Lee K S;Shin Y C;Oh K H et al.[J].Journal of the Korean Institute of Metals and Materials,1996,34(07):943-950. |
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