SITE OCCUPATION DETERMINATIONS BY APFIM FOR HF, FE, AND CO IN NI3AL

被引：71

作者：

MILLER, MK

HORTON, JA

机构：

[1] Oak Ridge Natl Lab, Oak Ridge, TN,, USA, Oak Ridge Natl Lab, Oak Ridge, TN, USA

来源：

SCRIPTA METALLURGICA | 1986年 / 20卷 / 08期

关键词：

NICKEL METALLOGRAPHY - Microstructures;

D O I：

10.1016/0036-9748(86)90188-2

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

The atomic spatial resolution of the atom probe field-ion microscope (APFIM) permits the site occupation probability of substitutional elements and the local degree of order to be measured directly. The four alloys used in this investigation are based on Ni - 24 at% Al -0. 24 at% B with additions of 0. 5% Hf, 1% Hf, 6% Fe, or 6% Co. The results indicate that hafnium has a strong preference for the aluminum sites, cobalt has a strong preference for the nickel sites, and iron has a weak preference for the aluminum sites. 9 refs.

引用

页码：1125 / 1130

页数：6

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