SEGREGATION OF INTERSTITIAL IMPURITIES IN SINGLE-CRYSTAL NIAL

被引：6

作者：

DUNCAN, AJ

KAUFMAN, MJ

MILLER, MK

机构：

[1] OAK RIDGE NATL LAB,DIV MET & CERAM,OAK RIDGE,TN 37831

[2] UNIV FLORIDA,DEPT MAT SCI & ENGN,GAINESVILLE,FL 32611

来源：

APPLIED SURFACE SCIENCE | 1994年 / 76卷 / 1-4期

关键词：

D O I：

10.1016/0169-4332(94)90337-9

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The distribution of interstitials, such as carbon and boron, in commercial-purity and high-purity (zone-refined) single crystals of NiAl has been characterized in the atom-probe field-ion microscope. These interstitials were found to form ultrafine precipitates containing refractory metals. The estimated precipitate number density in the commercial-purity single crystal was observed to be at least an order of magnitude higher than the high-purity crystal. The increase in yield stress as a result of this precipitation was predicted using the Orowan relationship for precipitation strengthening and compared to existing data.

引用

页码：160 / 164

页数：5

共 16 条

[1] THE EFFECT OF IRON, GALLIUM AND MOLYBDENUM ON THE ROOM-TEMPERATURE TENSILE DUCTILITY OF NIAL [J].