The effects of precipitation free zones on order strengthening in NIMONIC PE16 bi-crystals

被引：12

作者：

Baither, D

Herding, T

Krol, T

Reichelt, R

Nembach, E

机构：

[1] Univ Munster, Inst Met Forsch, D-48149 Munster, Germany

[2] Univ Munster, Inst Med Phys & Biophys, D-48149 Munster, Germany

来源：

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2001年 / 319卷

关键词：

nickel-base superalloy; NIMONIC PE16; order strengthening; precipitation free zones; scanning electron microscopy; transmission electron microscopy;

D O I：

10.1016/S0921-5093(00)02035-9

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Bi-crystals of the nickel-base superalloy NIMONIC PE16 have been used as model systems to study the influence of precipitation free zones (PFZ) at grain boundaries on the critical resolved shear stress. Analyses of the slip lines and dislocation configurations have been performed. After ageing for different times, the samples have been compression tested. In addition to the primary slip systems in the interior of the grains, secondary ones were activated in a grain boundary affected zone, They allowed the compatible deformation. Influences of the PFZs were attributed to an easier penetration of slip bands into the neighbouring grains. (C) 2001 Elsevier Science B.V. All rights reserved.

引用

页码：279 / 283

页数：5

共 5 条

[1] The formation of precipitate free zones and the growth of grain boundary carbides in the nickel-base superalloy NIMONIC PE16 [J].