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OALib Journal期刊
ISSN: 2333-9721
费用：99美元
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纯铁离子渗氮扩散层中a″→γ′氮化物的转变
, PP. 697-702
Keywords: 离子渗氮,α″→γ′氮化物转变,电子显微术
Abstract:
利用透射电子显微镜对纯铁离子渗氮扩散层中的γ′-Fe4N氮化物进行微观分析时发现,组织中存在两种类型的γ′Fe4N,通过其内部是否含有高密度的单方向平行层错片可以将二者区分开来.实验中观察到了直接生长在α″-Fe16N2上的γ′Fe4N氮化物,证实组织中存在α″→γ′氮化物的转变.通过此氮化物转变生成的γ′Fe4N,其内部含有单方向排列的平行层错片根据α″-Fe16N2和γ′-Fe4N的晶体结构讨论了氮化物转变的结构条件,转变过程中二者保持如下的取向关系(111)γ′∥(110)α″[110]γ′∥[111]α″.
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