B2有序铁铝化合物加锰后的价电子结构
Valence Electron Structure of B2-ordered Iron Aluminide with Mn Addition
摘 要
利用透射电镜分析了加锰后B2有序铁铝化合物的微观结构,并运用固体经验电子理论探讨了微量元素锰加入后对B2有序铁铝化合物价电子结构的影响.结果表明:在B2有序结构中,锰原子占据Ⅱ亚点阵位置的倾向较大.微量锰加入铁铝B2有序结构使铁铝原子间最近邻位键强有所增加、铁铁原子间最近邻位键强有所减弱;微量锰的加入可增加合金的B2有序倾向.
B2有序铁铝化合物
锰
valence electron structure
B2-ordered iron aluminide
Mn
Abstract
TEM was used to investigate the valence electron and ordering structure of B2-ordered iron aluminide with Mn addition.The addition of Mn into B2-ordered iron aluminide could strengthen the FeⅡ-AlⅠ bonding and weaken the FeⅡ-FeⅠ bonding strength,leading to increase B2 ordering.
中图分类号 TG146.2
所属栏目
基金项目
收稿日期 2005/8/23
修改稿日期 2005/11/22
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备注楼白杨(1958-),女,浙江杭州人,教授,博士.
引用该论文: LOU Bai-yang,XIE De-ming,XU Bin,CHEN Zhen. Valence Electron Structure of B2-ordered Iron Aluminide with Mn Addition[J]. Materials for mechancial engineering, 2007, 31(1): 41～42
楼白杨,谢德明,徐斌,陈阵. B2有序铁铝化合物加锰后的价电子结构[J]. 机械工程材料, 2007, 31(1): 41～42
被引情况:
【1】陈煜,姚正军,张平则,罗西希,韩培德, "铬、钼原子对FeAl/Fe3Al相界面结合能和电子结构的影响",机械工程材料 40, 96-100(2016)
【2】庞来学,邢德进,张爱琴,朱文心,徐静,李晋, "MWNTs/Fe3Al金属间化合物基复合材料的导电性能",机械工程材料 34, 35-37(2010)
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参考文献
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【2】Lou B Y,Zhang X B,Liu M S,et al.Effect of Mn on fracture behavior of DO3 Fe3Al-based intermetallic alloy[J].Journal of Materials Science,1998,33(6):1481-1948.
【3】Gao D C,Yang W Y,Huang X X,et al.The superplasticity of Fe-28Al-5Cr and Fe-28Al-5Cr-0.5Nb-0.1C alloys[J].Acta Metallurgica Sinica,2001,37(3):291-295.
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【5】Lou B Y,Lu C D,Jin J,et al.Fracture behavior of DO3-ordered Fe-Al alloy with V addition[J].Nonferrous Met Soc China,2003,13(4):855-858.
【6】余瑞璜.固体与分子电子理论[J].科学通报,1978,23(4):271-274.
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