OALib Journal期刊
ISSN: 2333-9721
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金属间化合物Ni_3Al微结构的AP-FIM研究
, PP. 249-254
Keywords: Ni_3Al,AP-FIM,有序度,硼
Abstract:
用原子探针场离子显微镜(AP-FIM)研究了添加B对Ni3Al有序度的影响以及不同Ni/Al比时Ni3Al场离子像衬度的变化无B的Ni3Al样品中晶内出现富Ni区,且随着Ni富集程度的不同而影响场离子像的衬度在.Ni3Al样品中,B的添加会影响Ni3Al晶体的择优取向随B含量的增加,Ni3Al中占据反位置的Al原子增多,有序度降低Ni3Al样品有序度的降低是改善室温延展性的原因之一.
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