Microstructure and room temperature tensile properties of Fe3Al-based alloys with cerium addition

被引:0
作者
Zhong, ZH [1 ]
Sun, YS [1 ]
Guo, J [1 ]
Weng, KZ [1 ]
机构
[1] SOUTHEAST UNIV,DEPT MAT SCI & ENGN,NANJING 210096,PEOPLES R CHINA
关键词
Fe3Al; cerium; mechanical properties; environmental brittleness;
D O I
暂无
中图分类号
O69 [应用化学];
学科分类号
081704 ;
摘要
The effect of cerium addition to the Fe-28Al and Fe-28Al-2Cr alloys has been studied. Results show that suitable amount of cerium increases the ductility and strength at room temperature significantly. Further study shows that cerium addition modifies the compositions and structure of Fe3Al oxide film, which restrains and retards the reaction of environmental water vapour on aluminum. Also cerium addition causes the microstructure refinement and formation of cerium-rich precipitates.
引用
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页码:145 / 149
页数:5
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