RE-Pr-Co和RE-Nd-Fe三元系合金相图的研究
基本信息
结项摘要
本项目完成了RE-Nd-Fe、RE-Pr-Co等8个三元系合金相图的研究，主要成果为：1、提出了一条三元系中四类三元区域分解形成新的稳定化合物的规律；2、证实了Nd5Fe17相和亚稳相NdFe2的存在。DyFe2和微量氧的存在有利于亚稳相的形成；3、少量Nd、Nb的加入有利于RE6Fe23相的形成；4、重稀土与Fe形成的RE2Fe17相与Nd2Fe17相分别属于Th2Ni17（六方晶系，Db3/mmc）和Th2Zn17（菱方晶系R3m）结构类型在500℃等温截面研究中发现，RE2Fe17与Nd2Fe17形成—连续固溶体，这现象有待进一步深入研究；5、测定了一些相的固溶度。
项目摘要
项目成果
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数据更新时间：2023-05-31
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