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B2有序铁铝化合物加锰后的价电子结构 被引量:2

Valence Electron Structure of B2-ordered Iron Aluminide with Mn Addition
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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。 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 Fe^Ⅱ-Al^1 bonding and weaken the Fe^Ⅱ -Fe^Ⅰ bonding strength, leading to increase B2 ordering.
出处 《机械工程材料》 CAS CSCD 北大核心 2007年第1期41-42,59,共3页 Materials For Mechanical Engineering
关键词 价电子结构 B2有序铁铝化合物 valence electron structure B2-ordered iron aluminide Mn
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