Atom probe analysis of nickel-based superalloy IN-718 with boron and phosphorus additions

被引：28
|
作者：
Sijbrandij, SJ
Miller, MK
Horton, JA
Cao, WD
机构：
[1] Oak Ridge Natl Lab, Div Met & Ceram, Oak Ridge, TN 37831 USA
[2] Teledyne Allvac, Monroe, NC 28110 USA
来源：
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 1998年 / 250卷 / 01期
关键词：
atom probe; field ion microscopy; microanalysis; nickel-based superalloys; IN-718;
D O I：
10.1016/S0921-5093(98)00546-2
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
The effects of controlled additions of boron and phosphorus to nickel-based superalloy IN-718 have been investigated by atom probe field ion microscopy in specimens subjected to a long term heat treatment (6 months at 704 degrees C). The predominant gamma, gamma' and gamma " phases were found to be depleted in boron and phosphorus, and no segregation was detected at gamma-gamma' and gamma-gamma " interfaces. Significant phosphorus enrichments were found in the minor sigma and Laves phases. (C) 1998 Elsevier Science S.A. All rights reserved.
引用
收藏
页码：115 / 119
页数：5
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