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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.
The effect of adding B on the ordering degree of Ni3Al and the change of image contrast of Ni3Al field ion at different Ni / Al ratios were investigated by atom probe field ion microscope (AP-FIM). The Ni-rich region , And the contrast of the field ion images affected by the enrichment of Ni is different from that of the Ni ion in the Ni3Al sample. The addition of B will affect the preferential orientation of Ni3Al crystal with the increase of B content, Decreasing the degree of ordering of ordered Ni3Al samples is one of the reasons to improve the ductility at room temperature.